Added SPI_MISO to SPI interface.

8 years ago · 8e071123d8
13 changed files with 36166 additions and 9 deletions
--- a/README.md
+++ b/README.md
@ -2,11 +2,11 @@
 Design files related to a photo-sensitive layering method etching machine
 everyone can build to produce prototypes quickly at home or in the lab.
-## Architecture
+## Architecture The etching machine consists basically out of two parts. The
-The etching machine consists basically out of two parts. The first part is a UV
+first part is a UV light, which is used to develop a photo-sensitive PCB. Once
-light, which is used to develop a photo-sensitive PCB. Once this has been done.
+this has been done.  The PCB has to be treated with sodium hydroxide (NaOH)
-The PCB has to be treated with sodium hydroxide (NaOH) dissolved in water. This
+dissolved in water. This removes the UV-sensitive plastic, where it has been
-removes the UV-sensitive plastic, where it has been tackeled by the light. 
+tackeled by the light. 
 The second part is the actual etching machine, which is designed to be
 compatible to euro cards (and even bigger ones). The etching machine is either
@ -16,5 +16,31 @@ iron(III) chloride (FeCl<sub>3</sub>) dissolved in water of course.
 ## Cuvette 
 ![alt text](https://github.com/m3x1m0m/ecthing/blob/master/photos/cuvette.jpg) 
 ## UV Light 
 ### Driver Extension Board
 ![3D Preview from KiCad (1).](https://github.com/m3x1m0m/ecthing/blob/master/pcbs/extension_board/output/3d_pic_1.jpg)
 This PCB is made to fit the [Nucleo-F103RB](http://www.st.com/en/evaluation-tools/nucleo-f103rb.html)
 development board from STM. Features:
 - 64 LED driving stages
 - 3.36 A and 26 V max. input (0.05 A per stage results in 3.2 A)
 - 0.1 A max. per stage
 - 10 Bit DAC to steer the driver
 - Optional potentiometer to steer the drivers
 - Control-loop for constant current
 - Feedback amplification to get a high current resolution
 - I2C header
 - SPI header
 - 2 rotary encoder and 1 tactile switch
 ![3D Preview from KiCad (2).](https://github.com/m3x1m0m/ecthing/blob/master/pcbs/extension_board/output/3d_pic_2.jpg)
  It is important to mention, that the resistors for the non-inverting amplifier
  in the feedback loop are optimized to result in a maximum current of 33 mA for
  3.3 V in order to achieve higher currents different resistor values have to be
  chosen.   
  ![alt text](https://github.com/m3x1m0m/ecthing/blob/master/photos/uv_lamp.jpg) 
 ## Etching Instruction 
 TBD 
--- a/pcbs/extension_board/2Stages1.sch
+++ b/pcbs/extension_board/2Stages1.sch
--- a/pcbs/extension_board/InterfaceNucleoF103RB.sch
+++ b/pcbs/extension_board/InterfaceNucleoF103RB.sch
@ -0,0 +1,380 @@
 EESchema Schematic File Version 2
 LIBS:power
 LIBS:device
 LIBS:transistors
 LIBS:conn
 LIBS:linear
 LIBS:regul
 LIBS:74xx
 LIBS:cmos4000
 LIBS:adc-dac
 LIBS:memory
 LIBS:xilinx
 LIBS:microcontrollers
 LIBS:dsp
 LIBS:microchip
 LIBS:analog_switches
 LIBS:motorola
 LIBS:texas
 LIBS:intel
 LIBS:audio
 LIBS:interface
 LIBS:digital-audio
 LIBS:philips
 LIBS:display
 LIBS:cypress
 LIBS:siliconi
 LIBS:opto
 LIBS:atmel
 LIBS:contrib
 LIBS:valves
 LIBS:myopamps
 LIBS:mydacs
 LIBS:mydcdcs
 LIBS:switches
 LIBS:mytactilesw
 LIBS:extension_board-cache
 EELAYER 25 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 36 37
 Title "Interface to the Nucleo-F103RB"
 Date "2017-11-16"
 Rev ""
 Comp "Uppsala University"
 Comment1 ""
 Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
 $Comp
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 F 3 "http://suddendocs.samtec.com/catalog_english/bcs.pdf" H 2830 3565 50  0001 C CNN
 F 4 "BCS-119-F-D-TE" H 2880 2550 60  0000 C CNN "Samtec"
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 $EndComp
 Text Notes 2275 2375 0    60   ~ 0
 These connectors will be on the bottom so the pin assignments are mirrored on\nthe y axis.
 Text GLabel 2630 3565 0    47   UnSpc ~ 0
 GND
 Text GLabel 2630 3665 0    47   UnSpc ~ 0
 GND
 Text GLabel 2630 2665 0    47   UnSpc ~ 0
 PC11
 Text GLabel 2630 2865 0    47   UnSpc ~ 0
 E5V
 Text GLabel 2630 2965 0    47   UnSpc ~ 0
 GND
 Text GLabel 2630 3365 0    47   UnSpc ~ 0
 +3V3
 Text GLabel 3130 3565 2    47   UnSpc ~ 0
 GND
 Text GLabel 3130 3665 2    47   UnSpc ~ 0
 PB7
 Text GLabel 3130 2665 2    47   UnSpc ~ 0
 PC10
 Text GLabel 3130 2765 2    47   UnSpc ~ 0
 PC12
 NoConn ~ 3130 3165
 NoConn ~ 3130 3065
 NoConn ~ 2630 3065
 NoConn ~ 2630 3865
 Text GLabel 4155 3565 0    47   UnSpc ~ 0
 GND
 Text GLabel 4155 2665 0    47   UnSpc ~ 0
 PC8
 Text GLabel 4655 3665 2    47   UnSpc ~ 0
 PA9
 Text GLabel 4655 2665 2    47   UnSpc ~ 0
 PC9
 Text GLabel 4655 3365 2    47   UnSpc ~ 0
 PA7
 Text GLabel 4655 3465 2    47   UnSpc ~ 0
 PB6
 Text GLabel 4655 3765 2    47   UnSpc ~ 0
 PA8
 Text GLabel 4655 4265 2    47   UnSpc ~ 0
 PA10
 NoConn ~ 4155 3065
 NoConn ~ 4155 4465
 NoConn ~ 4155 4365
 Text GLabel 4655 3065 2    47   UnSpc ~ 0
 GND
 Text GLabel 4655 3165 2    47   UnSpc ~ 0
 PA5
 Text GLabel 8125 1095 0    47   UnSpc ~ 0
 E5V
 Text GLabel 8300 1095 2    47   UnSpc ~ 0
 V5
 Text Notes 7950 995  0    60   ~ 0
 Powering the STM board with 5V.
 Text Notes 7970 2405 0    60   ~ 0
 Hook up I2C module 1 of the STM32F103RB.
 Text GLabel 8145 2505 0    47   UnSpc ~ 0
 PB7
 Text GLabel 8320 2505 2    47   UnSpc ~ 0
 I2C_SDA
 Text GLabel 8145 2630 0    47   UnSpc ~ 0
 PB6
 Text GLabel 8320 2630 2    47   UnSpc ~ 0
 I2C_SCL
 $Comp
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 $EndComp
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 $EndComp
 Text GLabel 8320 3400 3    47   UnSpc ~ 0
 I2C_SCL
 Text GLabel 8020 3400 3    47   UnSpc ~ 0
 I2C_SDA
 Text GLabel 8185 1335 0    47   UnSpc ~ 0
 +3V3
 Text GLabel 8385 1335 2    47   UnSpc ~ 0
 3V3
 Text GLabel 8020 3100 1    47   UnSpc ~ 0
 3V3
 Text GLabel 8320 3100 1    47   UnSpc ~ 0
 3V3
 Wire Wire Line
 	8125 1095 8300 1095
 Wire Wire Line
 	8145 2505 8320 2505
 Wire Wire Line
 	8145 2630 8320 2630
 Wire Wire Line
 	8185 1335 8385 1335
 Text Notes 7970 2900 0    60   ~ 0
 More I2C stuff.
 Text Notes 7955 1260 0    60   ~ 0
 Powering the extension board with the LDO output of the Nucleo.
 Text Notes 4810 5415 0    60   ~ 0
 Hook up SPI module 1 of the STM32F103RB.
 Text GLabel 4985 5515 0    47   UnSpc ~ 0
 PA5
 Text GLabel 5160 5515 2    47   UnSpc ~ 0
 SPI_CLK
 Text GLabel 4985 5640 0    47   UnSpc ~ 0
 PA6
 Text GLabel 5160 5640 2    47   UnSpc ~ 0
 SPI_MISO
 Wire Wire Line
 	4985 5515 5160 5515
 Wire Wire Line
 	4985 5640 5160 5640
 Text Notes 2230 5475 0    60   ~ 0
 Hook up user interface.
 Text GLabel 2405 5575 0    47   UnSpc ~ 0
 PA8
 Text GLabel 2580 5575 2    47   UnSpc ~ 0
 RES_OLED
 Text GLabel 2405 5700 0    47   UnSpc ~ 0
 PA9
 Text GLabel 2580 5700 2    47   UnSpc ~ 0
 DC_OLED
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 	2405 5575 2580 5575
 Wire Wire Line
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 PA10
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 CS_OLED
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 	2405 5825 2580 5825
 Text GLabel 2405 5955 0    47   UnSpc ~ 0
 PC8
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 UI_BUTTON
 Text GLabel 2405 6080 0    47   UnSpc ~ 0
 PC9
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 ROT_ENC_11
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 Wire Wire Line
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 PC10
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 PC11
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 ROT_ENC_21
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 Wire Wire Line
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 PC12
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 ROT_ENC_22
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 $Comp
 L Conn_02x19_Odd_Even J7
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 L TEST TP8
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 $EndComp
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 NoConn ~ 4155 4165
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 NoConn ~ 4155 3965
 NoConn ~ 4155 3765
 NoConn ~ 4155 3665
 NoConn ~ 4655 3865
 NoConn ~ 4655 3965
 NoConn ~ 4655 4065
 NoConn ~ 4655 4165
 NoConn ~ 4655 4365
 NoConn ~ 4655 4465
 NoConn ~ 4655 3565
 NoConn ~ 4155 3465
 NoConn ~ 4155 3365
 NoConn ~ 4155 3265
 NoConn ~ 4155 3165
 NoConn ~ 4155 2965
 NoConn ~ 4155 2865
 NoConn ~ 4155 2765
 NoConn ~ 4655 2765
 NoConn ~ 4655 2865
 NoConn ~ 4655 2965
 NoConn ~ 3130 3265
 NoConn ~ 3130 3365
 NoConn ~ 3130 3465
 NoConn ~ 3130 2965
 NoConn ~ 3130 2865
 NoConn ~ 2630 3165
 NoConn ~ 2630 3265
 NoConn ~ 2630 3765
 NoConn ~ 3130 3765
 NoConn ~ 3130 3865
 NoConn ~ 3130 4065
 NoConn ~ 3130 4165
 NoConn ~ 3130 4265
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 NoConn ~ 3130 4465
 NoConn ~ 2630 4465
 NoConn ~ 2630 4365
 NoConn ~ 2630 4265
 NoConn ~ 2630 4065
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 PD2
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 $Comp
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 $EndSCHEMATC
--- a/pcbs/extension_board/LEDDriver.sch
+++ b/pcbs/extension_board/LEDDriver.sch
@ -0,0 +1,970 @@
 EESchema Schematic File Version 2
 LIBS:power
 LIBS:device
 LIBS:transistors
 LIBS:conn
 LIBS:linear
 LIBS:regul
 LIBS:74xx
 LIBS:cmos4000
 LIBS:adc-dac
 LIBS:memory
 LIBS:xilinx
 LIBS:microcontrollers
 LIBS:dsp
 LIBS:microchip
 LIBS:analog_switches
 LIBS:motorola
 LIBS:texas
 LIBS:intel
 LIBS:audio
 LIBS:interface
 LIBS:digital-audio
 LIBS:philips
 LIBS:display
 LIBS:cypress
 LIBS:siliconi
 LIBS:opto
 LIBS:atmel
 LIBS:contrib
 LIBS:valves
 LIBS:myopamps
 LIBS:mydacs
 LIBS:mydcdcs
 LIBS:switches
 LIBS:mytactilesw
 LIBS:extension_board-cache
 EELAYER 25 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 2 37
 Title "UV LED Driver with 64 Stages and DAC"
 Date "2017-11-13"
 Rev ""
 Comp "Uppsala University"
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 F0 "2Stages19" 60
 F1 "2Stages1.sch" 60
 F2 "LED_NEG_1" O L 5520 5720 60 
 F3 "LED_NEG_2" O L 5520 5840 60 
 $EndSheet
 $Sheet
 S 5520 6027 830  203 
 U 5A09BEE8
 F0 "2Stages18" 60
 F1 "2Stages1.sch" 60
 F2 "LED_NEG_1" O L 5520 6070 60 
 F3 "LED_NEG_2" O L 5520 6190 60 
 $EndSheet
 $Sheet
 S 5520 6377 830  203 
 U 5A09BEEC
 F0 "2Stages17" 60
 F1 "2Stages1.sch" 60
 F2 "LED_NEG_1" O L 5520 6420 60 
 F3 "LED_NEG_2" O L 5520 6540 60 
 $EndSheet
 Text GLabel 3805 2265 0    47   UnSpc ~ 0
 LED_N_01
 Text GLabel 3805 2365 0    47   UnSpc ~ 0
 LED_N_02
 Text GLabel 2565 1170 2    47   UnSpc ~ 0
 LED_N_01
 Text GLabel 2565 1290 2    47   UnSpc ~ 0
 LED_N_02
 Text GLabel 2575 1520 2    47   UnSpc ~ 0
 LED_N_03
 Text GLabel 2575 1640 2    47   UnSpc ~ 0
 LED_N_04
 Text GLabel 3805 2465 0    47   UnSpc ~ 0
 LED_N_03
 Text GLabel 3805 2565 0    47   UnSpc ~ 0
 LED_N_04
 Text GLabel 2565 1870 2    47   UnSpc ~ 0
 LED_N_05
 Text GLabel 2565 1990 2    47   UnSpc ~ 0
 LED_N_06
 Text GLabel 2575 2220 2    47   UnSpc ~ 0
 LED_N_07
 Text GLabel 2575 2340 2    47   UnSpc ~ 0
 LED_N_08
 Text GLabel 3805 2665 0    47   UnSpc ~ 0
 LED_N_05
 Text GLabel 3805 2765 0    47   UnSpc ~ 0
 LED_N_06
 Text GLabel 3805 2865 0    47   UnSpc ~ 0
 LED_N_07
 Text GLabel 3805 2965 0    47   UnSpc ~ 0
 LED_N_08
 Text GLabel 2565 2570 2    47   UnSpc ~ 0
 LED_N_09
 Text GLabel 2565 2690 2    47   UnSpc ~ 0
 LED_N_10
 Text GLabel 2575 2920 2    47   UnSpc ~ 0
 LED_N_11
 Text GLabel 2575 3040 2    47   UnSpc ~ 0
 LED_N_12
 Text GLabel 2565 3270 2    47   UnSpc ~ 0
 LED_N_13
 Text GLabel 2565 3390 2    47   UnSpc ~ 0
 LED_N_14
 Text GLabel 2575 3620 2    47   UnSpc ~ 0
 LED_N_15
 Text GLabel 2575 3740 2    47   UnSpc ~ 0
 LED_N_16
 Text GLabel 2565 3970 2    47   UnSpc ~ 0
 LED_N_17
 Text GLabel 2565 4090 2    47   UnSpc ~ 0
 LED_N_18
 Text GLabel 2575 4320 2    47   UnSpc ~ 0
 LED_N_19
 Text GLabel 2575 4440 2    47   UnSpc ~ 0
 LED_N_20
 Text GLabel 2565 4670 2    47   UnSpc ~ 0
 LED_N_21
 Text GLabel 2565 4790 2    47   UnSpc ~ 0
 LED_N_22
 Text GLabel 2575 5020 2    47   UnSpc ~ 0
 LED_N_23
 Text GLabel 2575 5140 2    47   UnSpc ~ 0
 LED_N_24
 Text GLabel 2565 5370 2    47   UnSpc ~ 0
 LED_N_25
 Text GLabel 2565 5490 2    47   UnSpc ~ 0
 LED_N_26
 Text GLabel 2575 5720 2    47   UnSpc ~ 0
 LED_N_27
 Text GLabel 2575 5840 2    47   UnSpc ~ 0
 LED_N_28
 Text GLabel 2565 6070 2    47   UnSpc ~ 0
 LED_N_29
 Text GLabel 2565 6190 2    47   UnSpc ~ 0
 LED_N_30
 Text GLabel 2575 6420 2    47   UnSpc ~ 0
 LED_N_31
 Text GLabel 2575 6540 2    47   UnSpc ~ 0
 LED_N_32
 Text GLabel 3805 3065 0    47   UnSpc ~ 0
 LED_N_09
 Text GLabel 3805 3165 0    47   UnSpc ~ 0
 LED_N_10
 Text GLabel 3805 3265 0    47   UnSpc ~ 0
 LED_N_11
 Text GLabel 3805 3365 0    47   UnSpc ~ 0
 LED_N_12
 Text GLabel 3805 3465 0    47   UnSpc ~ 0
 LED_N_13
 Text GLabel 3805 3565 0    47   UnSpc ~ 0
 LED_N_14
 Text GLabel 3805 3665 0    47   UnSpc ~ 0
 LED_N_15
 Text GLabel 3805 3765 0    47   UnSpc ~ 0
 LED_N_16
 Text GLabel 3805 3865 0    47   UnSpc ~ 0
 LED_N_17
 Text GLabel 3805 3965 0    47   UnSpc ~ 0
 LED_N_18
 Text GLabel 3805 4065 0    47   UnSpc ~ 0
 LED_N_19
 Text GLabel 3805 4165 0    47   UnSpc ~ 0
 LED_N_20
 Text GLabel 3805 4265 0    47   UnSpc ~ 0
 LED_N_21
 Text GLabel 3805 4365 0    47   UnSpc ~ 0
 LED_N_22
 Text GLabel 3805 4465 0    47   UnSpc ~ 0
 LED_N_23
 Text GLabel 3805 4565 0    47   UnSpc ~ 0
 LED_N_24
 Text GLabel 3805 4665 0    47   UnSpc ~ 0
 LED_N_25
 Text GLabel 3805 4765 0    47   UnSpc ~ 0
 LED_N_26
 Text GLabel 3805 4865 0    47   UnSpc ~ 0
 LED_N_27
 Text GLabel 3805 4965 0    47   UnSpc ~ 0
 LED_N_28
 Text GLabel 3805 5065 0    47   UnSpc ~ 0
 LED_N_29
 Text GLabel 3805 5165 0    47   UnSpc ~ 0
 LED_N_30
 Text GLabel 3805 5265 0    47   UnSpc ~ 0
 LED_N_31
 Text GLabel 3805 5365 0    47   UnSpc ~ 0
 LED_N_32
 Text GLabel 5485 1170 0    47   UnSpc ~ 0
 LED_N_64
 Text GLabel 5485 1290 0    47   UnSpc ~ 0
 LED_N_63
 Text GLabel 5475 1520 0    47   UnSpc ~ 0
 LED_N_62
 Text GLabel 5475 1640 0    47   UnSpc ~ 0
 LED_N_61
 Text GLabel 5485 1870 0    47   UnSpc ~ 0
 LED_N_60
 Text GLabel 5485 1990 0    47   UnSpc ~ 0
 LED_N_59
 Text GLabel 5475 2220 0    47   UnSpc ~ 0
 LED_N_58
 Text GLabel 5475 2340 0    47   UnSpc ~ 0
 LED_N_57
 Text GLabel 5485 2570 0    47   UnSpc ~ 0
 LED_N_56
 Text GLabel 5485 2690 0    47   UnSpc ~ 0
 LED_N_55
 Text GLabel 5475 2920 0    47   UnSpc ~ 0
 LED_N_54
 Text GLabel 5475 3040 0    47   UnSpc ~ 0
 LED_N_53
 Text GLabel 5485 3270 0    47   UnSpc ~ 0
 LED_N_52
 Text GLabel 5485 3390 0    47   UnSpc ~ 0
 LED_N_51
 Text GLabel 5475 3620 0    47   UnSpc ~ 0
 LED_N_50
 Text GLabel 5475 3740 0    47   UnSpc ~ 0
 LED_N_49
 Text GLabel 5485 3970 0    47   UnSpc ~ 0
 LED_N_48
 Text GLabel 5485 4090 0    47   UnSpc ~ 0
 LED_N_47
 Text GLabel 5475 4320 0    47   UnSpc ~ 0
 LED_N_46
 Text GLabel 5475 4440 0    47   UnSpc ~ 0
 LED_N_45
 Text GLabel 5485 4670 0    47   UnSpc ~ 0
 LED_N_44
 Text GLabel 5485 4790 0    47   UnSpc ~ 0
 LED_N_43
 Text GLabel 5475 5020 0    47   UnSpc ~ 0
 LED_N_42
 Text GLabel 5475 5140 0    47   UnSpc ~ 0
 LED_N_41
 Text GLabel 5485 5370 0    47   UnSpc ~ 0
 LED_N_40
 Text GLabel 5485 5490 0    47   UnSpc ~ 0
 LED_N_39
 Text GLabel 5475 5720 0    47   UnSpc ~ 0
 LED_N_38
 Text GLabel 5475 5840 0    47   UnSpc ~ 0
 LED_N_37
 Text GLabel 5485 6070 0    47   UnSpc ~ 0
 LED_N_36
 Text GLabel 5485 6190 0    47   UnSpc ~ 0
 LED_N_35
 Text GLabel 5475 6420 0    47   UnSpc ~ 0
 LED_N_34
 Text GLabel 5475 6540 0    47   UnSpc ~ 0
 LED_N_33
 Text GLabel 4305 2265 2    47   UnSpc ~ 0
 LED_N_64
 Text GLabel 4305 2365 2    47   UnSpc ~ 0
 LED_N_63
 Text GLabel 4305 2465 2    47   UnSpc ~ 0
 LED_N_62
 Text GLabel 4305 2565 2    47   UnSpc ~ 0
 LED_N_61
 Text GLabel 4305 2665 2    47   UnSpc ~ 0
 LED_N_60
 Text GLabel 4305 2765 2    47   UnSpc ~ 0
 LED_N_59
 Text GLabel 4305 2865 2    47   UnSpc ~ 0
 LED_N_58
 Text GLabel 4305 2965 2    47   UnSpc ~ 0
 LED_N_57
 Text GLabel 4305 3065 2    47   UnSpc ~ 0
 LED_N_56
 Text GLabel 4305 3165 2    47   UnSpc ~ 0
 LED_N_55
 Text GLabel 4305 3265 2    47   UnSpc ~ 0
 LED_N_54
 Text GLabel 4305 3365 2    47   UnSpc ~ 0
 LED_N_53
 Text GLabel 4305 3465 2    47   UnSpc ~ 0
 LED_N_52
 Text GLabel 4305 3565 2    47   UnSpc ~ 0
 LED_N_51
 Text GLabel 4305 3665 2    47   UnSpc ~ 0
 LED_N_50
 Text GLabel 4305 3765 2    47   UnSpc ~ 0
 LED_N_49
 Text GLabel 4305 3865 2    47   UnSpc ~ 0
 LED_N_48
 Text GLabel 4305 3965 2    47   UnSpc ~ 0
 LED_N_47
 Text GLabel 4305 4065 2    47   UnSpc ~ 0
 LED_N_46
 Text GLabel 4305 4165 2    47   UnSpc ~ 0
 LED_N_45
 Text GLabel 4305 4265 2    47   UnSpc ~ 0
 LED_N_44
 Text GLabel 4305 4365 2    47   UnSpc ~ 0
 LED_N_43
 Text GLabel 4305 4465 2    47   UnSpc ~ 0
 LED_N_42
 Text GLabel 4305 4565 2    47   UnSpc ~ 0
 LED_N_41
 Text GLabel 4305 4665 2    47   UnSpc ~ 0
 LED_N_40
 Text GLabel 4305 4765 2    47   UnSpc ~ 0
 LED_N_39
 Text GLabel 4305 4865 2    47   UnSpc ~ 0
 LED_N_38
 Text GLabel 4305 4965 2    47   UnSpc ~ 0
 LED_N_37
 Text GLabel 4305 5065 2    47   UnSpc ~ 0
 LED_N_36
 Text GLabel 4305 5165 2    47   UnSpc ~ 0
 LED_N_35
 Text GLabel 4305 5265 2    47   UnSpc ~ 0
 LED_N_34
 Text GLabel 4305 5365 2    47   UnSpc ~ 0
 LED_N_33
 $Comp
 L Conn_02x32_Counter_Clockwise J1
 U 1 1 5A093293
 P 4005 3765
 F 0 "J1" H 4055 5365 50  0000 C CNN
 F 1 "Conn_02x32_Counter_Clockwise" H 4055 2065 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x32_Pitch2.54mm" H 4005 3765 50  0001 C CNN
 F 3 "http://suddendocs.samtec.com/catalog_english/tsw_th.pdf" H 4005 3765 50  0001 C CNN
 F 4 "TSW-132-07-G-D" H 4000 2030 60  0000 C CNN "Samtec"
 	1    4005 3765
 	1    0    0    -1  
 $EndComp
 $Comp
 L DAC101C085 U33
 U 1 1 5A10AF74
 P 8435 2445
 F 0 "U33" H 8205 2015 60  0000 C CNN
 F 1 "DAC101C085" H 8405 2095 60  0000 C CNN
 F 2 "SSOP:VSSOP-8_3.0x3.0mm_Pitch0.65mm" H 8335 2345 60  0001 C CNN
 F 3 "http://www.ti.com/lit/ds/symlink/dac101c085.pdf" H 8335 2345 60  0001 C CNN
 F 4 "DAC101C085CIMM/NOPBCT-ND" H 8435 2445 60  0001 C CNN "Digikey"
 	1    8435 2445
 	1    0    0    -1  
 $EndComp
 Text GLabel 8935 2345 2    60   Output ~ 0
 VDAC
 $Comp
 L GND #PWR3
 U 1 1 5A10F0A9
 P 9100 2845
 F 0 "#PWR3" H 9100 2595 50  0001 C CNN
 F 1 "GND" H 9100 2695 50  0000 C CNN
 F 2 "" H 9100 2845 50  0000 C CNN
 F 3 "" H 9100 2845 50  0000 C CNN
 	1    9100 2845
 	-1   0    0    -1  
 $EndComp
 $Comp
 L C C2
 U 1 1 5A10F09A
 P 9605 2620
 F 0 "C2" H 9630 2720 50  0000 L CNN
 F 1 "100n" H 9630 2520 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 9643 2470 50  0001 C CNN
 F 3 "" H 9605 2620 50  0000 C CNN
 F 4 "311-1088-1-ND" H 9605 2620 60  0001 C CNN "Digikey"
 	1    9605 2620
 	-1   0    0    -1  
 $EndComp
 $Comp
 L C C3
 U 1 1 5A115A8A
 P 9875 2620
 F 0 "C3" H 9900 2720 50  0000 L CNN
 F 1 "10u" H 9900 2520 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 9913 2470 50  0001 C CNN
 F 3 "" H 9875 2620 50  0000 C CNN
 F 4 "490-6403-6-ND" H 9875 2620 60  0001 C CNN "Digikey"
 	1    9875 2620
 	-1   0    0    -1  
 $EndComp
 Text GLabel 7935 2645 0    47   UnSpc ~ 0
 I2C_SDA
 Text GLabel 7935 2545 0    47   UnSpc ~ 0
 I2C_SCL
 $Comp
 L R R1
 U 1 1 5A1206F0
 P 7785 2345
 F 0 "R1" V 7735 2185 50  0000 C CNN
 F 1 "0R" V 7785 2345 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7715 2345 50  0001 C CNN
 F 3 "" H 7785 2345 50  0001 C CNN
 F 4 "311-0.0GRCT-ND" V 7785 2345 60  0001 C CNN "Digikey"
 	1    7785 2345
 	0    -1   1    0   
 $EndComp
 $Comp
 L R R2
 U 1 1 5A121AEE
 P 7785 2445
 F 0 "R2" V 7740 2285 50  0000 C CNN
 F 1 "0R" V 7785 2445 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7715 2445 50  0001 C CNN
 F 3 "" H 7785 2445 50  0001 C CNN
 F 4 "311-0.0GRCT-ND" V 7785 2445 60  0001 C CNN "Digikey"
 	1    7785 2445
 	0    -1   1    0   
 $EndComp
 $Comp
 L R R3
 U 1 1 5A1370E7
 P 8310 3450
 F 0 "R3" V 8390 3450 50  0000 C CNN
 F 1 "10k" V 8310 3450 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8240 3450 50  0001 C CNN
 F 3 "" H 8310 3450 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8310 3450 60  0001 C CNN "Digikey"
 	1    8310 3450
 	0    -1   1    0   
 $EndComp
 Text GLabel 9100 3450 2    60   UnSpc ~ 0
 3V3
 $Comp
 L POT RV1
 U 1 1 5A139EFD
 P 7900 3450
 F 0 "RV1" V 7725 3450 50  0000 C CNN
 F 1 " 3362R" V 7800 3450 50  0000 C CNN
 F 2 "MyPotis:Burns_3362R" H 7900 3450 50  0001 C CNN
 F 3 "http://www.bourns.com/docs/Product-Datasheets/3362.pdf" H 7900 3450 50  0001 C CNN
 F 4 " 3362R-103LF-ND" V 7900 3450 60  0001 C CNN "Digikey"
 	1    7900 3450
 	0    1    1    0   
 $EndComp
 $Comp
 L GND #PWR1
 U 1 1 5A142088
 P 7570 4080
 F 0 "#PWR1" H 7570 3830 50  0001 C CNN
 F 1 "GND" H 7570 3930 50  0000 C CNN
 F 2 "" H 7570 4080 50  0000 C CNN
 F 3 "" H 7570 4080 50  0000 C CNN
 	1    7570 4080
 	-1   0    0    -1  
 $EndComp
 Text GLabel 8010 3830 0    60   Input ~ 0
 VDAC
 Text GLabel 9030 3730 2    60   Output ~ 0
 VSIG
 $Comp
 L Conn_02x03_Odd_Even J2
 U 1 1 5A1548D7
 P 8210 3830
 F 0 "J2" H 8260 4030 50  0000 C CNN
 F 1 "Conn_02x03_Odd_Even" H 8260 3630 50  0000 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm" H 8210 3830 50  0001 C CNN
 F 3 "" H 8210 3830 50  0001 C CNN
 F 4 "TSW-103-07-G-D" H 8210 3830 60  0001 C CNN "Digikey"
 	1    8210 3830
 	1    0    0    -1  
 $EndComp
 $Comp
 L R R4
 U 1 1 5A15A992
 P 8840 3930
 F 0 "R4" V 8920 3930 50  0000 C CNN
 F 1 "10k" V 8840 3930 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8770 3930 50  0001 C CNN
 F 3 "" H 8840 3930 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8840 3930 60  0001 C CNN "Digikey"
 	1    8840 3930
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR2
 U 1 1 5A15B686
 P 8840 4080
 F 0 "#PWR2" H 8840 3830 50  0001 C CNN
 F 1 "GND" H 8840 3930 50  0000 C CNN
 F 2 "" H 8840 4080 50  0000 C CNN
 F 3 "" H 8840 4080 50  0000 C CNN
 	1    8840 4080
 	-1   0    0    -1  
 $EndComp
 Text Notes 7510 3220 0    60   ~ 0
 It shall be possible to switch between a (screw driver) poti and the DAC. 
 $Comp
 L C C1
 U 1 1 5A10F0A2
 P 9330 2620
 F 0 "C1" H 9355 2720 50  0000 L CNN
 F 1 "10n" H 9355 2520 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 9368 2470 50  0001 C CNN
 F 3 "" H 9330 2620 50  0000 C CNN
 F 4 "311-1085-1-ND" H 9330 2620 60  0001 C CNN "Digikey"
 	1    9330 2620
 	-1   0    0    -1  
 $EndComp
 Text Notes 7450 2125 0    60   ~ 0
 Simple DAC for I2C programming.
 $Comp
 L Conn_01x05 J3
 U 1 1 5A0CAC06
 P 8350 4900
 F 0 "J3" H 8350 5200 50  0000 C CNN
 F 1 "Conn_01x05" H 8350 4600 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm" H 8350 4900 50  0001 C CNN
 F 3 "" H 8350 4900 50  0001 C CNN
 F 4 "BCS-105-F-S-TE" H 8350 4575 60  0000 C CNN "Samtec"
 	1    8350 4900
 	1    0    0    -1  
 $EndComp
 Text GLabel 8150 4700 0    47   UnSpc ~ 0
 3V3
 Text GLabel 8150 4800 0    47   UnSpc ~ 0
 GND
 Text GLabel 8150 4900 0    47   UnSpc ~ 0
 I2C_SCL
 Text GLabel 8150 5000 0    47   UnSpc ~ 0
 I2C_SDA
 Text Notes 7550 4550 0    60   ~ 0
 Light sensor TSL2561 for feedback.
 Text Notes 2950 5650 0    60   ~ 0
 This connector connects the driver to the LEDs.
 Text Notes 1700 900  0    60   ~ 0
 32 x 2 = 64 stages. 1 stage consists out of 4 LEDs.
 Wire Wire Line
 	2530 1170 2565 1170
 Wire Wire Line
 	2530 1290 2565 1290
 Wire Wire Line
 	2530 1520 2575 1520
 Wire Wire Line
 	2575 1640 2530 1640
 Wire Wire Line
 	2530 1870 2565 1870
 Wire Wire Line
 	2530 1990 2565 1990
 Wire Wire Line
 	2530 2220 2575 2220
 Wire Wire Line
 	2575 2340 2530 2340
 Wire Wire Line
 	2530 2570 2565 2570
 Wire Wire Line
 	2530 2690 2565 2690
 Wire Wire Line
 	2530 2920 2575 2920
 Wire Wire Line
 	2575 3040 2530 3040
 Wire Wire Line
 	2530 3270 2565 3270
 Wire Wire Line
 	2530 3390 2565 3390
 Wire Wire Line
 	2530 3620 2575 3620
 Wire Wire Line
 	2575 3740 2530 3740
 Wire Wire Line
 	2530 3970 2565 3970
 Wire Wire Line
 	2530 4090 2565 4090
 Wire Wire Line
 	2530 4320 2575 4320
 Wire Wire Line
 	2575 4440 2530 4440
 Wire Wire Line
 	2530 4670 2565 4670
 Wire Wire Line
 	2530 4790 2565 4790
 Wire Wire Line
 	2530 5020 2575 5020
 Wire Wire Line
 	2575 5140 2530 5140
 Wire Wire Line
 	2530 5370 2565 5370
 Wire Wire Line
 	2530 5490 2565 5490
 Wire Wire Line
 	2530 5720 2575 5720
 Wire Wire Line
 	2575 5840 2530 5840
 Wire Wire Line
 	2530 6070 2565 6070
 Wire Wire Line
 	2530 6190 2565 6190
 Wire Wire Line
 	2530 6420 2575 6420
 Wire Wire Line
 	2575 6540 2530 6540
 Wire Wire Line
 	5520 1170 5485 1170
 Wire Wire Line
 	5520 1290 5485 1290
 Wire Wire Line
 	5520 1520 5475 1520
 Wire Wire Line
 	5475 1640 5520 1640
 Wire Wire Line
 	5520 1870 5485 1870
 Wire Wire Line
 	5520 1990 5485 1990
 Wire Wire Line
 	5520 2220 5475 2220
 Wire Wire Line
 	5475 2340 5520 2340
 Wire Wire Line
 	5520 2570 5485 2570
 Wire Wire Line
 	5520 2690 5485 2690
 Wire Wire Line
 	5520 2920 5475 2920
 Wire Wire Line
 	5475 3040 5520 3040
 Wire Wire Line
 	5520 3270 5485 3270
 Wire Wire Line
 	5520 3390 5485 3390
 Wire Wire Line
 	5520 3620 5475 3620
 Wire Wire Line
 	5475 3740 5520 3740
 Wire Wire Line
 	5520 3970 5485 3970
 Wire Wire Line
 	5520 4090 5485 4090
 Wire Wire Line
 	5520 4320 5475 4320
 Wire Wire Line
 	5475 4440 5520 4440
 Wire Wire Line
 	5520 4670 5485 4670
 Wire Wire Line
 	5520 4790 5485 4790
 Wire Wire Line
 	5520 5020 5475 5020
 Wire Wire Line
 	5475 5140 5520 5140
 Wire Wire Line
 	5520 5370 5485 5370
 Wire Wire Line
 	5520 5490 5485 5490
 Wire Wire Line
 	5520 5720 5475 5720
 Wire Wire Line
 	5475 5840 5520 5840
 Wire Wire Line
 	5520 6070 5485 6070
 Wire Wire Line
 	5520 6190 5485 6190
 Wire Wire Line
 	5520 6420 5475 6420
 Wire Wire Line
 	5475 6540 5520 6540
 Wire Wire Line
 	8935 2445 10015 2445
 Wire Wire Line
 	9605 2445 9605 2470
 Wire Wire Line
 	9330 2445 9330 2470
 Connection ~ 9330 2445
 Wire Wire Line
 	8935 2645 9100 2645
 Wire Wire Line
 	9100 2645 9100 2845
 Wire Wire Line
 	9605 2815 9605 2770
 Wire Wire Line
 	9100 2815 9875 2815
 Connection ~ 9100 2815
 Wire Wire Line
 	9330 2770 9330 2815
 Connection ~ 9330 2815
 Wire Wire Line
 	8935 2545 9095 2545
 Wire Wire Line
 	9095 2545 9095 2445
 Connection ~ 9095 2445
 Connection ~ 9605 2445
 Wire Wire Line
 	9875 2815 9875 2770
 Connection ~ 9605 2815
 Wire Wire Line
 	9875 2175 9875 2470
 Connection ~ 9875 2445
 Wire Wire Line
 	7465 2175 9875 2175
 Wire Wire Line
 	7465 2445 7635 2445
 Wire Wire Line
 	7465 2175 7465 2445
 Wire Wire Line
 	7635 2345 7465 2345
 Connection ~ 7465 2345
 Wire Wire Line
 	8460 3450 9100 3450
 Wire Wire Line
 	8160 3450 8050 3450
 Wire Wire Line
 	8010 3730 7900 3730
 Wire Wire Line
 	7900 3730 7900 3600
 Wire Wire Line
 	8510 3730 9030 3730
 Wire Wire Line
 	8560 3830 8510 3830
 Wire Wire Line
 	8560 3730 8560 3830
 Connection ~ 8560 3730
 Wire Wire Line
 	8510 3930 8560 3930
 Wire Wire Line
 	8560 3930 8560 3820
 Connection ~ 8560 3820
 Wire Wire Line
 	7570 3450 7570 4080
 Wire Wire Line
 	7570 3450 7750 3450
 Wire Wire Line
 	8840 3780 8840 3730
 Connection ~ 8840 3730
 Text GLabel 10015 2445 2    60   UnSpc ~ 0
 3V3
 Text GLabel 8150 5100 0    47   UnSpc ~ 0
 LIGHT_INT
 NoConn ~ 8010 3930
 $EndSCHEMATC
--- a/pcbs/extension_board/UI.sch
+++ b/pcbs/extension_board/UI.sch
@ -0,0 +1,501 @@
 EESchema Schematic File Version 2
 LIBS:power
 LIBS:device
 LIBS:transistors
 LIBS:conn
 LIBS:linear
 LIBS:regul
 LIBS:74xx
 LIBS:cmos4000
 LIBS:adc-dac
 LIBS:memory
 LIBS:xilinx
 LIBS:microcontrollers
 LIBS:dsp
 LIBS:microchip
 LIBS:analog_switches
 LIBS:motorola
 LIBS:texas
 LIBS:intel
 LIBS:audio
 LIBS:interface
 LIBS:digital-audio
 LIBS:philips
 LIBS:display
 LIBS:cypress
 LIBS:siliconi
 LIBS:opto
 LIBS:atmel
 LIBS:contrib
 LIBS:valves
 LIBS:myopamps
 LIBS:mydacs
 LIBS:mydcdcs
 LIBS:switches
 LIBS:mytactilesw
 LIBS:extension_board-cache
 EELAYER 25 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 37 37
 Title "User Interface"
 Date "2017-11-16"
 Rev ""
 Comp "Uppsala University"
 Comment1 ""
 Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
 Wire Wire Line
 	3225 4450 3125 4450
 Wire Wire Line
 	3125 4450 3125 4650
 Wire Wire Line
 	3125 4650 3225 4650
 Wire Wire Line
 	3625 4450 3725 4450
 Wire Wire Line
 	3725 4450 3725 4650
 Wire Wire Line
 	3725 4650 3625 4650
 $Comp
 L R R204
 U 1 1 5A0B32F4
 P 2950 4350
 F 0 "R204" V 3030 4350 50  0000 C CNN
 F 1 "10k" V 2950 4350 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 2880 4350 50  0001 C CNN
 F 3 "" H 2950 4350 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 2950 4350 60  0001 C CNN "Digikey"
 	1    2950 4350
 	1    0    0    -1  
 $EndComp
 Text GLabel 2950 4200 1    60   UnSpc ~ 0
 3V3
 Wire Wire Line
 	2950 4500 2950 4550
 Wire Wire Line
 	2775 4550 3125 4550
 Connection ~ 3125 4550
 $Comp
 L GND #PWR298
 U 1 1 5A0B85D7
 P 3875 4575
 F 0 "#PWR298" H 3875 4325 50  0001 C CNN
 F 1 "GND" H 3875 4425 50  0000 C CNN
 F 2 "" H 3875 4575 50  0001 C CNN
 F 3 "" H 3875 4575 50  0001 C CNN
 	1    3875 4575
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	3725 4550 3875 4550
 Wire Wire Line
 	3875 4550 3875 4575
 Connection ~ 3725 4550
 Text GLabel 2775 4550 0    60   UnSpc ~ 0
 UI_BUTTON
 Connection ~ 2950 4550
 $Comp
 L GND #PWR302
 U 1 1 5A0B9013
 P 8075 4125
 F 0 "#PWR302" H 8075 3875 50  0001 C CNN
 F 1 "GND" H 8075 3975 50  0000 C CNN
 F 2 "" H 8075 4125 50  0001 C CNN
 F 3 "" H 8075 4125 50  0001 C CNN
 	1    8075 4125
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	7800 4425 7800 4525
 $Comp
 L R R210
 U 1 1 5A0BA92C
 P 8275 4175
 F 0 "R210" V 8355 4175 50  0000 C CNN
 F 1 "10k" V 8275 4175 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8205 4175 50  0001 C CNN
 F 3 "" H 8275 4175 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8275 4175 60  0001 C CNN "Digikey"
 	1    8275 4175
 	-1   0    0    -1  
 $EndComp
 Text GLabel 8275 4025 1    60   UnSpc ~ 0
 3V3
 $Comp
 L C C141
 U 1 1 5A0BA933
 P 8825 4700
 F 0 "C141" H 8850 4800 50  0000 L CNN
 F 1 "10n" H 8850 4600 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 8863 4550 50  0001 C CNN
 F 3 "" H 8825 4700 50  0001 C CNN
 F 4 "311-1085-1-ND" H 8825 4700 60  0001 C CNN "Digikey"
 	1    8825 4700
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR304
 U 1 1 5A0BA939
 P 8825 4850
 F 0 "#PWR304" H 8825 4600 50  0001 C CNN
 F 1 "GND" H 8825 4700 50  0000 C CNN
 F 2 "" H 8825 4850 50  0001 C CNN
 F 3 "" H 8825 4850 50  0001 C CNN
 	1    8825 4850
 	-1   0    0    -1  
 $EndComp
 Wire Wire Line
 	8275 4325 8275 4425
 Wire Wire Line
 	8000 4425 8375 4425
 Wire Wire Line
 	8000 4425 8000 4525
 Wire Wire Line
 	7900 4525 7900 4075
 Wire Wire Line
 	7900 4075 8075 4075
 Wire Wire Line
 	8075 4075 8075 4125
 $Comp
 L R R212
 U 1 1 5A0BAE2A
 P 8525 4425
 F 0 "R212" V 8605 4425 50  0000 C CNN
 F 1 "10k" V 8525 4425 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8455 4425 50  0001 C CNN
 F 3 "" H 8525 4425 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8525 4425 60  0001 C CNN "Digikey"
 	1    8525 4425
 	0    1    -1   0   
 $EndComp
 Connection ~ 8275 4425
 Wire Wire Line
 	8675 4425 8925 4425
 Wire Wire Line
 	8825 4340 8825 4550
 Text GLabel 8925 4425 2    60   Output ~ 0
 ROT_ENC_22
 Connection ~ 8825 4425
 $Comp
 L R R208
 U 1 1 5A0BE49B
 P 7525 4175
 F 0 "R208" V 7605 4175 50  0000 C CNN
 F 1 "10k" V 7525 4175 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7455 4175 50  0001 C CNN
 F 3 "" H 7525 4175 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 7525 4175 60  0001 C CNN "Digikey"
 	1    7525 4175
 	1    0    0    -1  
 $EndComp
 Text GLabel 7525 4025 1    60   UnSpc ~ 0
 3V3
 $Comp
 L C C139
 U 1 1 5A0BE4A3
 P 6975 4700
 F 0 "C139" H 7000 4800 50  0000 L CNN
 F 1 "10n" H 7000 4600 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 7013 4550 50  0001 C CNN
 F 3 "" H 6975 4700 50  0001 C CNN
 F 4 "311-1085-1-ND" H 6975 4700 60  0001 C CNN "Digikey"
 	1    6975 4700
 	1    0    0    -1  
 $EndComp
 $Comp
 L GND #PWR300
 U 1 1 5A0BE4A9
 P 6975 4850
 F 0 "#PWR300" H 6975 4600 50  0001 C CNN
 F 1 "GND" H 6975 4700 50  0000 C CNN
 F 2 "" H 6975 4850 50  0001 C CNN
 F 3 "" H 6975 4850 50  0001 C CNN
 	1    6975 4850
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	7525 4325 7525 4425
 Wire Wire Line
 	7425 4425 7800 4425
 $Comp
 L R R206
 U 1 1 5A0BE4B3
 P 7275 4425
 F 0 "R206" V 7355 4425 50  0000 C CNN
 F 1 "10k" V 7275 4425 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7205 4425 50  0001 C CNN
 F 3 "" H 7275 4425 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 7275 4425 60  0001 C CNN "Digikey"
 	1    7275 4425
 	0    -1   -1   0   
 $EndComp
 Connection ~ 7525 4425
 Wire Wire Line
 	6875 4425 7125 4425
 Wire Wire Line
 	6975 4340 6975 4550
 Text GLabel 6875 4425 0    60   Output ~ 0
 ROT_ENC_21
 Connection ~ 6975 4425
 Text GLabel 2800 2150 0    47   UnSpc ~ 0
 GND
 Text GLabel 2800 2250 0    47   UnSpc ~ 0
 3V3
 Text GLabel 2800 2350 0    47   UnSpc ~ 0
 SPI_CLK
 Text GLabel 2800 2450 0    47   UnSpc ~ 0
 SPI_MOSI
 Text GLabel 2800 2550 0    47   UnSpc ~ 0
 RES_OLED
 Text GLabel 2800 2650 0    47   UnSpc ~ 0
 DC_OLED
 Text GLabel 2800 2750 0    47   UnSpc ~ 0
 CS_OLED
 Text Notes 2150 1950 0    60   ~ 0
 SSD1306 OLED SPI (4 wire) interface.
 Text Notes 6150 2050 0    60   ~ 0
 Rotary encoders with external debouncing mechanism. \nDebouncing circuit stolen from:\nhttps://hifiduino.wordpress.com/2010/10/20/rotaryencoder-hw-sw-no-debounce/
 Text Notes 2250 3900 0    60   ~ 0
 Tactile switch.
 $Comp
 L TEST TP10
 U 1 1 5A0E3D54
 P 6975 4340
 F 0 "TP10" H 6975 4640 50  0000 C BNN
 F 1 "ROT21" H 6975 4590 50  0000 C CNN
 F 2 "" H 6975 4340 50  0001 C CNN
 F 3 "" H 6975 4340 50  0001 C CNN
 	1    6975 4340
 	1    0    0    -1  
 $EndComp
 $Comp
 L TEST TP12
 U 1 1 5A0E4DAF
 P 8825 4340
 F 0 "TP12" H 8825 4640 50  0000 C BNN
 F 1 "ROT22" H 8825 4590 50  0000 C CNN
 F 2 "" H 8825 4340 50  0001 C CNN
 F 3 "" H 8825 4340 50  0001 C CNN
 	1    8825 4340
 	1    0    0    -1  
 $EndComp
 $Comp
 L Rotary_Encoder SW2
 U 1 1 5A0E582F
 P 7845 3255
 F 0 "SW2" H 7845 3515 50  0000 C CNN
 F 1 "Rotary_Encoder" H 7845 2995 50  0000 C CNN
 F 2 "MySWs:ROT_ENC_EN12_TT_Electronics_No_Switch" H 7745 3415 50  0001 C CNN
 F 3 "http://www.ttelectronics.com/sites/default/files/download-files/Datasheet_RotaryEncoder_EN12Series.pdf" H 7845 3515 50  0001 C CNN
 F 4 "987-1399-ND" H 7845 3255 60  0001 C CNN "Digikey"
 	1    7845 3255
 	0    1    1    0   
 $EndComp
 $Comp
 L GND #PWR301
 U 1 1 5A0E5835
 P 8020 2555
 F 0 "#PWR301" H 8020 2305 50  0001 C CNN
 F 1 "GND" H 8020 2405 50  0000 C CNN
 F 2 "" H 8020 2555 50  0001 C CNN
 F 3 "" H 8020 2555 50  0001 C CNN
 	1    8020 2555
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	7745 2855 7745 2955
 $Comp
 L R R209
 U 1 1 5A0E583D
 P 8220 2605
 F 0 "R209" V 8300 2605 50  0000 C CNN
 F 1 "10k" V 8220 2605 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8150 2605 50  0001 C CNN
 F 3 "" H 8220 2605 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8220 2605 60  0001 C CNN "Digikey"
 	1    8220 2605
 	-1   0    0    -1  
 $EndComp
 Text GLabel 8220 2455 1    60   UnSpc ~ 0
 3V3
 $Comp
 L C C140
 U 1 1 5A0E5845
 P 8770 3130
 F 0 "C140" H 8795 3230 50  0000 L CNN
 F 1 "10n" H 8795 3030 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 8808 2980 50  0001 C CNN
 F 3 "" H 8770 3130 50  0001 C CNN
 F 4 "311-1085-1-ND" H 8770 3130 60  0001 C CNN "Digikey"
 	1    8770 3130
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR303
 U 1 1 5A0E584B
 P 8770 3280
 F 0 "#PWR303" H 8770 3030 50  0001 C CNN
 F 1 "GND" H 8770 3130 50  0000 C CNN
 F 2 "" H 8770 3280 50  0001 C CNN
 F 3 "" H 8770 3280 50  0001 C CNN
 	1    8770 3280
 	-1   0    0    -1  
 $EndComp
 Wire Wire Line
 	8220 2755 8220 2855
 Wire Wire Line
 	7945 2855 8320 2855
 Wire Wire Line
 	7945 2855 7945 2955
 Wire Wire Line
 	7845 2955 7845 2505
 Wire Wire Line
 	7845 2505 8020 2505
 Wire Wire Line
 	8020 2505 8020 2555
 $Comp
 L R R211
 U 1 1 5A0E5858
 P 8470 2855
 F 0 "R211" V 8550 2855 50  0000 C CNN
 F 1 "10k" V 8470 2855 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8400 2855 50  0001 C CNN
 F 3 "" H 8470 2855 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 8470 2855 60  0001 C CNN "Digikey"
 	1    8470 2855
 	0    1    -1   0   
 $EndComp
 Connection ~ 8220 2855
 Wire Wire Line
 	8620 2855 8870 2855
 Wire Wire Line
 	8770 2770 8770 2980
 Text GLabel 8870 2855 2    60   Output ~ 0
 ROT_ENC_12
 Connection ~ 8770 2855
 $Comp
 L R R207
 U 1 1 5A0E5864
 P 7470 2605
 F 0 "R207" V 7550 2605 50  0000 C CNN
 F 1 "10k" V 7470 2605 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7400 2605 50  0001 C CNN
 F 3 "" H 7470 2605 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 7470 2605 60  0001 C CNN "Digikey"
 	1    7470 2605
 	1    0    0    -1  
 $EndComp
 Text GLabel 7470 2455 1    60   UnSpc ~ 0
 3V3
 $Comp
 L C C138
 U 1 1 5A0E586C
 P 6920 3130
 F 0 "C138" H 6945 3230 50  0000 L CNN
 F 1 "10n" H 6945 3030 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 6958 2980 50  0001 C CNN
 F 3 "" H 6920 3130 50  0001 C CNN
 F 4 "311-1085-1-ND" H 6920 3130 60  0001 C CNN "Digikey"
 	1    6920 3130
 	1    0    0    -1  
 $EndComp
 $Comp
 L GND #PWR299
 U 1 1 5A0E5872
 P 6920 3280
 F 0 "#PWR299" H 6920 3030 50  0001 C CNN
 F 1 "GND" H 6920 3130 50  0000 C CNN
 F 2 "" H 6920 3280 50  0001 C CNN
 F 3 "" H 6920 3280 50  0001 C CNN
 	1    6920 3280
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	7470 2755 7470 2855
 Wire Wire Line
 	7370 2855 7745 2855
 $Comp
 L R R205
 U 1 1 5A0E587B
 P 7220 2855
 F 0 "R205" V 7300 2855 50  0000 C CNN
 F 1 "10k" V 7220 2855 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 7150 2855 50  0001 C CNN
 F 3 "" H 7220 2855 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 7220 2855 60  0001 C CNN "Digikey"
 	1    7220 2855
 	0    -1   -1   0   
 $EndComp
 Connection ~ 7470 2855
 Wire Wire Line
 	6820 2855 7070 2855
 Wire Wire Line
 	6920 2770 6920 2980
 Text GLabel 6820 2855 0    60   Output ~ 0
 ROT_ENC_11
 Connection ~ 6920 2855
 $Comp
 L TEST TP9
 U 1 1 5A0E5886
 P 6920 2770
 F 0 "TP9" H 6920 3070 50  0000 C BNN
 F 1 "ROT11" H 6920 3020 50  0000 C CNN
 F 2 "" H 6920 2770 50  0001 C CNN
 F 3 "" H 6920 2770 50  0001 C CNN
 	1    6920 2770
 	1    0    0    -1  
 $EndComp
 $Comp
 L TEST TP11
 U 1 1 5A0E588C
 P 8770 2770
 F 0 "TP11" H 8770 3070 50  0000 C BNN
 F 1 "ROT12" H 8770 3020 50  0000 C CNN
 F 2 "" H 8770 2770 50  0001 C CNN
 F 3 "" H 8770 2770 50  0001 C CNN
 	1    8770 2770
 	1    0    0    -1  
 $EndComp
 $Comp
 L MY_SW_Push_Dual SW1
 U 1 1 5A0EBF07
 P 3425 4450
 F 0 "SW1" H 3475 4550 50  0000 L CNN
 F 1 "MY_SW_Push_Dual" H 3425 4180 50  0000 C CNN
 F 2 "MySWs:SW_PUSH_TE_CONN_6x6" H 3425 4650 50  0001 C CNN
 F 3 "http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1825910&DocType=Customer+Drawing&DocLang=English" H 3425 4650 50  0001 C CNN
 F 4 "450-1650-ND" H 3425 4450 60  0001 C CNN "Digikey"
 	1    3425 4450
 	1    0    0    -1  
 $EndComp
 $Comp
 L Rotary_Encoder SW3
 U 1 1 5A0B8D30
 P 7900 4825
 F 0 "SW3" H 7900 5085 50  0000 C CNN
 F 1 "Rotary_Encoder" H 7900 4565 50  0000 C CNN
 F 2 "MySWs:ROT_ENC_EN12_TT_Electronics_No_Switch" H 7800 4985 50  0001 C CNN
 F 3 "http://www.ttelectronics.com/sites/default/files/download-files/Datasheet_RotaryEncoder_EN12Series.pdf" H 7900 5085 50  0001 C CNN
 F 4 "987-1399-ND" H 7900 4825 60  0001 C CNN "Digikey"
 	1    7900 4825
 	0    1    1    0   
 $EndComp
 $Comp
 L Conn_01x08 J8
 U 1 1 5A1C4898
 P 3000 2450
 F 0 "J8" H 3000 2850 50  0000 C CNN
 F 1 "Conn_01x08" H 3000 1950 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm" H 3000 2450 50  0001 C CNN
 F 3 "http://suddendocs.samtec.com/catalog_english/bcs.pdf" H 3000 2450 50  0001 C CNN
 F 4 "BCS-108-F-S-TE" H 3000 1950 60  0000 C CNN "Samtec"
 	1    3000 2450
 	1    0    0    -1  
 $EndComp
 Text GLabel 2800 2850 0    47   UnSpc ~ 0
 SPI_MISO
 $EndSCHEMATC
--- a/pcbs/extension_board/extension_board-cache.lib
+++ b/pcbs/extension_board/extension_board-cache.lib
@ -0,0 +1,727 @@
 EESchema-LIBRARY Version 2.3
 #encoding utf-8
 #
 # BC846BS
 #
 DEF BC846BS Q 0 0 Y N 2 L N
 F0 "Q" 200 50 50 H V L CNN
 F1 "BC846BS" 200 -50 50 H V L CNN
 F2 "TO_SOT_Packages_SMD:SOT-363" 200 100 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 ALIAS BC846BDW1 BC847BS BC847BDW1 PMBT2222AYS MMDT2222A MBT2222ADW1T1 FFB2222A PMBT3904YS MMDT3904 MBT3904DW1 FFB3904 MMDT5551 FFB5551
 $FPLIST
 SC?70*
 SC?88*
 SOT?363*
 $ENDFPLIST
 DRAW
 C 50 0 111 0 1 10 N
 P 2 0 1 0 25 0 -100 0 N
 P 2 0 1 0 25 25 100 100 N
 P 3 0 1 0 25 -25 100 -100 100 -100 N
 P 3 0 1 20 25 75 25 -75 25 -75 N
 P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
 X E1 1 100 -200 100 U 50 50 1 1 P
 X B1 2 -200 0 100 R 50 50 1 1 I
 X C1 6 100 200 100 D 50 50 1 1 P
 X C2 3 100 200 100 D 50 50 2 1 P
 X E2 4 100 -200 100 U 50 50 2 1 P
 X B2 5 -200 0 100 R 50 50 2 1 I
 ENDDRAW
 ENDDEF
 #
 # Barrel_Jack
 #
 DEF Barrel_Jack J 0 40 Y Y 1 F N
 F0 "J" 0 210 50 H V C CNN
 F1 "Barrel_Jack" 0 -175 50 H V C CNN
 F2 "" 50 -40 50 H I C CNN
 F3 "" 50 -40 50 H I C CNN
 ALIAS Jack-DC
 DRAW
 A -130 100 25 901 -901 0 1 10 F -130 125 -130 75
 A -130 100 25 901 -901 0 1 10 N -130 125 -130 75
 S 145 125 -130 75 0 1 10 F
 P 2 0 1 10 50 -90 75 -65 N
 P 2 0 1 10 200 100 150 100 N
 P 4 0 1 10 200 0 50 0 50 -90 25 -65 N
 P 6 0 1 10 -150 -100 -100 -100 -50 -50 0 -100 100 -100 200 -100 N
 X ~ 1 300 100 100 L 50 50 1 1 P
 X ~ 2 300 -100 100 L 50 50 1 1 P
 X ~ 3 300 0 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # C
 #
 DEF C C 0 10 N Y 1 F N
 F0 "C" 25 100 50 H V L CNN
 F1 "C" 25 -100 50 H V L CNN
 F2 "" 38 -150 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 C_*
 $ENDFPLIST
 DRAW
 P 2 0 1 20 -80 -30 80 -30 N
 P 2 0 1 20 -80 30 80 30 N
 X ~ 1 0 150 110 D 50 50 1 1 P
 X ~ 2 0 -150 110 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_01x05
 #
 DEF Conn_01x05 J 0 40 Y N 1 F N
 F0 "J" 0 300 50 H V C CNN
 F1 "Conn_01x05" 0 -300 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*_??x*mm*
 Connector*:*1x??x*mm*
 Pin?Header?Straight?1X*
 Pin?Header?Angled?1X*
 Socket?Strip?Straight?1X*
 Socket?Strip?Angled?1X*
 $ENDFPLIST
 DRAW
 S -50 -195 0 -205 1 1 6 N
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 205 0 195 1 1 6 N
 S -50 250 50 -250 1 1 10 f
 X Pin_1 1 -200 200 150 R 50 50 1 1 P
 X Pin_2 2 -200 100 150 R 50 50 1 1 P
 X Pin_3 3 -200 0 150 R 50 50 1 1 P
 X Pin_4 4 -200 -100 150 R 50 50 1 1 P
 X Pin_5 5 -200 -200 150 R 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_01x08
 #
 DEF Conn_01x08 J 0 40 Y N 1 F N
 F0 "J" 0 400 50 H V C CNN
 F1 "Conn_01x08" 0 -500 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*_??x*mm*
 Connector*:*1x??x*mm*
 Pin?Header?Straight?1X*
 Pin?Header?Angled?1X*
 Socket?Strip?Straight?1X*
 Socket?Strip?Angled?1X*
 $ENDFPLIST
 DRAW
 S -50 -395 0 -405 1 1 6 N
 S -50 -295 0 -305 1 1 6 N
 S -50 -195 0 -205 1 1 6 N
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 205 0 195 1 1 6 N
 S -50 305 0 295 1 1 6 N
 S -50 350 50 -450 1 1 10 f
 X Pin_1 1 -200 300 150 R 50 50 1 1 P
 X Pin_2 2 -200 200 150 R 50 50 1 1 P
 X Pin_3 3 -200 100 150 R 50 50 1 1 P
 X Pin_4 4 -200 0 150 R 50 50 1 1 P
 X Pin_5 5 -200 -100 150 R 50 50 1 1 P
 X Pin_6 6 -200 -200 150 R 50 50 1 1 P
 X Pin_7 7 -200 -300 150 R 50 50 1 1 P
 X Pin_8 8 -200 -400 150 R 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_02x03_Odd_Even
 #
 DEF Conn_02x03_Odd_Even J 0 40 Y N 1 F N
 F0 "J" 50 200 50 H V C CNN
 F1 "Conn_02x03_Odd_Even" 50 -200 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*2x??x*mm*
 Connector*:*2x???Pitch*
 Pin_Header_Straight_2X*
 Pin_Header_Angled_2X*
 Socket_Strip_Straight_2X*
 Socket_Strip_Angled_2X*
 $ENDFPLIST
 DRAW
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 150 150 -150 1 1 10 f
 S 150 -95 100 -105 1 1 6 N
 S 150 5 100 -5 1 1 6 N
 S 150 105 100 95 1 1 6 N
 X Pin_1 1 -200 100 150 R 50 50 1 1 P
 X Pin_2 2 300 100 150 L 50 50 1 1 P
 X Pin_3 3 -200 0 150 R 50 50 1 1 P
 X Pin_4 4 300 0 150 L 50 50 1 1 P
 X Pin_5 5 -200 -100 150 R 50 50 1 1 P
 X Pin_6 6 300 -100 150 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_02x05_Odd_Even
 #
 DEF Conn_02x05_Odd_Even J 0 40 Y N 1 F N
 F0 "J" 50 300 50 H V C CNN
 F1 "Conn_02x05_Odd_Even" 50 -300 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*2x??x*mm*
 Connector*:*2x???Pitch*
 Pin_Header_Straight_2X*
 Pin_Header_Angled_2X*
 Socket_Strip_Straight_2X*
 Socket_Strip_Angled_2X*
 $ENDFPLIST
 DRAW
 S -50 -195 0 -205 1 1 6 N
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 205 0 195 1 1 6 N
 S -50 250 150 -250 1 1 10 f
 S 150 -195 100 -205 1 1 6 N
 S 150 -95 100 -105 1 1 6 N
 S 150 5 100 -5 1 1 6 N
 S 150 105 100 95 1 1 6 N
 S 150 205 100 195 1 1 6 N
 X Pin_1 1 -200 200 150 R 50 50 1 1 P
 X Pin_2 2 300 200 150 L 50 50 1 1 P
 X Pin_3 3 -200 100 150 R 50 50 1 1 P
 X Pin_4 4 300 100 150 L 50 50 1 1 P
 X Pin_5 5 -200 0 150 R 50 50 1 1 P
 X Pin_6 6 300 0 150 L 50 50 1 1 P
 X Pin_7 7 -200 -100 150 R 50 50 1 1 P
 X Pin_8 8 300 -100 150 L 50 50 1 1 P
 X Pin_9 9 -200 -200 150 R 50 50 1 1 P
 X Pin_10 10 300 -200 150 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_02x19_Odd_Even
 #
 DEF Conn_02x19_Odd_Even J 0 40 Y N 1 F N
 F0 "J" 50 1000 50 H V C CNN
 F1 "Conn_02x19_Odd_Even" 50 -1000 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*2x??x*mm*
 Connector*:*2x???Pitch*
 Pin_Header_Straight_2X*
 Pin_Header_Angled_2X*
 Socket_Strip_Straight_2X*
 Socket_Strip_Angled_2X*
 $ENDFPLIST
 DRAW
 S -50 -895 0 -905 1 1 6 N
 S -50 -795 0 -805 1 1 6 N
 S -50 -695 0 -705 1 1 6 N
 S -50 -595 0 -605 1 1 6 N
 S -50 -495 0 -505 1 1 6 N
 S -50 -395 0 -405 1 1 6 N
 S -50 -295 0 -305 1 1 6 N
 S -50 -195 0 -205 1 1 6 N
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 205 0 195 1 1 6 N
 S -50 305 0 295 1 1 6 N
 S -50 405 0 395 1 1 6 N
 S -50 505 0 495 1 1 6 N
 S -50 605 0 595 1 1 6 N
 S -50 705 0 695 1 1 6 N
 S -50 805 0 795 1 1 6 N
 S -50 905 0 895 1 1 6 N
 S -50 950 150 -950 1 1 10 f
 S 150 -895 100 -905 1 1 6 N
 S 150 -795 100 -805 1 1 6 N
 S 150 -695 100 -705 1 1 6 N
 S 150 -595 100 -605 1 1 6 N
 S 150 -495 100 -505 1 1 6 N
 S 150 -395 100 -405 1 1 6 N
 S 150 -295 100 -305 1 1 6 N
 S 150 -195 100 -205 1 1 6 N
 S 150 -95 100 -105 1 1 6 N
 S 150 5 100 -5 1 1 6 N
 S 150 105 100 95 1 1 6 N
 S 150 205 100 195 1 1 6 N
 S 150 305 100 295 1 1 6 N
 S 150 405 100 395 1 1 6 N
 S 150 505 100 495 1 1 6 N
 S 150 605 100 595 1 1 6 N
 S 150 705 100 695 1 1 6 N
 S 150 805 100 795 1 1 6 N
 S 150 905 100 895 1 1 6 N
 X Pin_1 1 -200 900 150 R 50 50 1 1 P
 X Pin_2 2 300 900 150 L 50 50 1 1 P
 X Pin_3 3 -200 800 150 R 50 50 1 1 P
 X Pin_4 4 300 800 150 L 50 50 1 1 P
 X Pin_5 5 -200 700 150 R 50 50 1 1 P
 X Pin_6 6 300 700 150 L 50 50 1 1 P
 X Pin_7 7 -200 600 150 R 50 50 1 1 P
 X Pin_8 8 300 600 150 L 50 50 1 1 P
 X Pin_9 9 -200 500 150 R 50 50 1 1 P
 X Pin_10 10 300 500 150 L 50 50 1 1 P
 X Pin_20 20 300 0 150 L 50 50 1 1 P
 X Pin_30 30 300 -500 150 L 50 50 1 1 P
 X Pin_11 11 -200 400 150 R 50 50 1 1 P
 X Pin_21 21 -200 -100 150 R 50 50 1 1 P
 X Pin_31 31 -200 -600 150 R 50 50 1 1 P
 X Pin_12 12 300 400 150 L 50 50 1 1 P
 X Pin_22 22 300 -100 150 L 50 50 1 1 P
 X Pin_32 32 300 -600 150 L 50 50 1 1 P
 X Pin_13 13 -200 300 150 R 50 50 1 1 P
 X Pin_23 23 -200 -200 150 R 50 50 1 1 P
 X Pin_33 33 -200 -700 150 R 50 50 1 1 P
 X Pin_14 14 300 300 150 L 50 50 1 1 P
 X Pin_24 24 300 -200 150 L 50 50 1 1 P
 X Pin_34 34 300 -700 150 L 50 50 1 1 P
 X Pin_15 15 -200 200 150 R 50 50 1 1 P
 X Pin_25 25 -200 -300 150 R 50 50 1 1 P
 X Pin_35 35 -200 -800 150 R 50 50 1 1 P
 X Pin_16 16 300 200 150 L 50 50 1 1 P
 X Pin_26 26 300 -300 150 L 50 50 1 1 P
 X Pin_36 36 300 -800 150 L 50 50 1 1 P
 X Pin_17 17 -200 100 150 R 50 50 1 1 P
 X Pin_27 27 -200 -400 150 R 50 50 1 1 P
 X Pin_37 37 -200 -900 150 R 50 50 1 1 P
 X Pin_18 18 300 100 150 L 50 50 1 1 P
 X Pin_28 28 300 -400 150 L 50 50 1 1 P
 X Pin_38 38 300 -900 150 L 50 50 1 1 P
 X Pin_19 19 -200 0 150 R 50 50 1 1 P
 X Pin_29 29 -200 -500 150 R 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Conn_02x32_Counter_Clockwise
 #
 DEF Conn_02x32_Counter_Clockwise J 0 40 Y N 1 F N
 F0 "J" 50 1600 50 H V C CNN
 F1 "Conn_02x32_Counter_Clockwise" 50 -1700 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Connector*:*2x??x*mm*
 Connector*:*2x???Pitch*
 $ENDFPLIST
 DRAW
 S -50 -1595 0 -1605 1 1 6 N
 S -50 -1495 0 -1505 1 1 6 N
 S -50 -1395 0 -1405 1 1 6 N
 S -50 -1295 0 -1305 1 1 6 N
 S -50 -1195 0 -1205 1 1 6 N
 S -50 -1095 0 -1105 1 1 6 N
 S -50 -995 0 -1005 1 1 6 N
 S -50 -895 0 -905 1 1 6 N
 S -50 -795 0 -805 1 1 6 N
 S -50 -695 0 -705 1 1 6 N
 S -50 -595 0 -605 1 1 6 N
 S -50 -495 0 -505 1 1 6 N
 S -50 -395 0 -405 1 1 6 N
 S -50 -295 0 -305 1 1 6 N
 S -50 -195 0 -205 1 1 6 N
 S -50 -95 0 -105 1 1 6 N
 S -50 5 0 -5 1 1 6 N
 S -50 105 0 95 1 1 6 N
 S -50 205 0 195 1 1 6 N
 S -50 305 0 295 1 1 6 N
 S -50 405 0 395 1 1 6 N
 S -50 505 0 495 1 1 6 N
 S -50 605 0 595 1 1 6 N
 S -50 705 0 695 1 1 6 N
 S -50 805 0 795 1 1 6 N
 S -50 905 0 895 1 1 6 N
 S -50 1005 0 995 1 1 6 N
 S -50 1105 0 1095 1 1 6 N
 S -50 1205 0 1195 1 1 6 N
 S -50 1305 0 1295 1 1 6 N
 S -50 1405 0 1395 1 1 6 N
 S -50 1505 0 1495 1 1 6 N
 S -50 1550 150 -1650 1 1 10 f
 S 150 -1595 100 -1605 1 1 6 N
 S 150 -1495 100 -1505 1 1 6 N
 S 150 -1395 100 -1405 1 1 6 N
 S 150 -1295 100 -1305 1 1 6 N
 S 150 -1195 100 -1205 1 1 6 N
 S 150 -1095 100 -1105 1 1 6 N
 S 150 -995 100 -1005 1 1 6 N
 S 150 -895 100 -905 1 1 6 N
 S 150 -795 100 -805 1 1 6 N
 S 150 -695 100 -705 1 1 6 N
 S 150 -595 100 -605 1 1 6 N
 S 150 -495 100 -505 1 1 6 N
 S 150 -395 100 -405 1 1 6 N
 S 150 -295 100 -305 1 1 6 N
 S 150 -195 100 -205 1 1 6 N
 S 150 -95 100 -105 1 1 6 N
 S 150 5 100 -5 1 1 6 N
 S 150 105 100 95 1 1 6 N
 S 150 205 100 195 1 1 6 N
 S 150 305 100 295 1 1 6 N
 S 150 405 100 395 1 1 6 N
 S 150 505 100 495 1 1 6 N
 S 150 605 100 595 1 1 6 N
 S 150 705 100 695 1 1 6 N
 S 150 805 100 795 1 1 6 N
 S 150 905 100 895 1 1 6 N
 S 150 1005 100 995 1 1 6 N
 S 150 1105 100 1095 1 1 6 N
 S 150 1205 100 1195 1 1 6 N
 S 150 1305 100 1295 1 1 6 N
 S 150 1405 100 1395 1 1 6 N
 S 150 1505 100 1495 1 1 6 N
 X Pin_1 1 -200 1500 150 R 50 50 1 1 P
 X Pin_2 2 -200 1400 150 R 50 50 1 1 P
 X Pin_3 3 -200 1300 150 R 50 50 1 1 P
 X Pin_4 4 -200 1200 150 R 50 50 1 1 P
 X Pin_5 5 -200 1100 150 R 50 50 1 1 P
 X Pin_6 6 -200 1000 150 R 50 50 1 1 P
 X Pin_7 7 -200 900 150 R 50 50 1 1 P
 X Pin_8 8 -200 800 150 R 50 50 1 1 P
 X Pin_9 9 -200 700 150 R 50 50 1 1 P
 X Pin_10 10 -200 600 150 R 50 50 1 1 P
 X Pin_20 20 -200 -400 150 R 50 50 1 1 P
 X Pin_30 30 -200 -1400 150 R 50 50 1 1 P
 X Pin_40 40 300 -900 150 L 50 50 1 1 P
 X Pin_50 50 300 100 150 L 50 50 1 1 P
 X Pin_60 60 300 1100 150 L 50 50 1 1 P
 X Pin_11 11 -200 500 150 R 50 50 1 1 P
 X Pin_21 21 -200 -500 150 R 50 50 1 1 P
 X Pin_31 31 -200 -1500 150 R 50 50 1 1 P
 X Pin_41 41 300 -800 150 L 50 50 1 1 P
 X Pin_51 51 300 200 150 L 50 50 1 1 P
 X Pin_61 61 300 1200 150 L 50 50 1 1 P
 X Pin_12 12 -200 400 150 R 50 50 1 1 P
 X Pin_22 22 -200 -600 150 R 50 50 1 1 P
 X Pin_32 32 -200 -1600 150 R 50 50 1 1 P
 X Pin_42 42 300 -700 150 L 50 50 1 1 P
 X Pin_52 52 300 300 150 L 50 50 1 1 P
 X Pin_62 62 300 1300 150 L 50 50 1 1 P
 X Pin_13 13 -200 300 150 R 50 50 1 1 P
 X Pin_23 23 -200 -700 150 R 50 50 1 1 P
 X Pin_33 33 300 -1600 150 L 50 50 1 1 P
 X Pin_43 43 300 -600 150 L 50 50 1 1 P
 X Pin_53 53 300 400 150 L 50 50 1 1 P
 X Pin_63 63 300 1400 150 L 50 50 1 1 P
 X Pin_14 14 -200 200 150 R 50 50 1 1 P
 X Pin_24 24 -200 -800 150 R 50 50 1 1 P
 X Pin_34 34 300 -1500 150 L 50 50 1 1 P
 X Pin_44 44 300 -500 150 L 50 50 1 1 P
 X Pin_54 54 300 500 150 L 50 50 1 1 P
 X Pin_64 64 300 1500 150 L 50 50 1 1 P
 X Pin_15 15 -200 100 150 R 50 50 1 1 P
 X Pin_25 25 -200 -900 150 R 50 50 1 1 P
 X Pin_35 35 300 -1400 150 L 50 50 1 1 P
 X Pin_45 45 300 -400 150 L 50 50 1 1 P
 X Pin_55 55 300 600 150 L 50 50 1 1 P
 X Pin_16 16 -200 0 150 R 50 50 1 1 P
 X Pin_26 26 -200 -1000 150 R 50 50 1 1 P
 X Pin_36 36 300 -1300 150 L 50 50 1 1 P
 X Pin_46 46 300 -300 150 L 50 50 1 1 P
 X Pin_56 56 300 700 150 L 50 50 1 1 P
 X Pin_17 17 -200 -100 150 R 50 50 1 1 P
 X Pin_27 27 -200 -1100 150 R 50 50 1 1 P
 X Pin_37 37 300 -1200 150 L 50 50 1 1 P
 X Pin_47 47 300 -200 150 L 50 50 1 1 P
 X Pin_57 57 300 800 150 L 50 50 1 1 P
 X Pin_18 18 -200 -200 150 R 50 50 1 1 P
 X Pin_28 28 -200 -1200 150 R 50 50 1 1 P
 X Pin_38 38 300 -1100 150 L 50 50 1 1 P
 X Pin_48 48 300 -100 150 L 50 50 1 1 P
 X Pin_58 58 300 900 150 L 50 50 1 1 P
 X Pin_19 19 -200 -300 150 R 50 50 1 1 P
 X Pin_29 29 -200 -1300 150 R 50 50 1 1 P
 X Pin_39 39 300 -1000 150 L 50 50 1 1 P
 X Pin_49 49 300 0 150 L 50 50 1 1 P
 X Pin_59 59 300 1000 150 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # DAC101C085
 #
 DEF DAC101C085 U 0 40 Y Y 1 F N
 F0 "U" -230 -430 60 H V C CNN
 F1 "DAC101C085" -30 -350 60 H V C CNN
 F2 "" -100 -100 60 H I C CNN
 F3 "" -100 -100 60 H I C CNN
 $FPLIST
 VSSOP-8*
 $ENDFPLIST
 DRAW
 S -300 200 300 -300 0 1 0 f
 X ADR0 1 -500 100 200 R 50 50 1 1 I
 X ADR1 2 -500 0 200 R 50 50 1 1 I
 X SCL 3 -500 -100 200 R 50 50 1 1 B
 X SDA 4 -500 -200 200 R 50 50 1 1 B
 X GND 5 500 -200 200 L 50 50 1 1 W
 X VA 6 500 -100 200 L 50 50 1 1 W
 X VREF 7 500 0 200 L 50 50 1 1 I
 X VOUT 8 500 100 200 L 50 50 1 1 O
 ENDDRAW
 ENDDEF
 #
 # D_Schottky
 #
 DEF D_Schottky D 0 40 N N 1 F N
 F0 "D" 0 100 50 H V C CNN
 F1 "D_Schottky" 0 -100 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 TO-???*
 *SingleDiode
 *_Diode_*
 *SingleDiode*
 D_*
 $ENDFPLIST
 DRAW
 P 2 0 1 0 50 0 -50 0 N
 P 4 0 1 8 50 50 50 -50 -50 0 50 50 N
 P 6 0 1 8 -75 25 -75 50 -50 50 -50 -50 -25 -50 -25 -25 N
 X K 1 -150 0 100 R 50 50 1 1 P
 X A 2 150 0 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # GND
 #
 DEF GND #PWR 0 0 Y Y 1 F P
 F0 "#PWR" 0 -250 50 H I C CNN
 F1 "GND" 0 -150 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 DRAW
 P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
 X GND 1 0 0 0 D 50 50 1 1 W N
 ENDDRAW
 ENDDEF
 #
 # L
 #
 DEF L L 0 40 N N 1 F N
 F0 "L" -50 0 50 V V C CNN
 F1 "L" 75 0 50 V V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Choke_*
 *Coil*
 Inductor_*
 L_*
 $ENDFPLIST
 DRAW
 A 0 -75 25 -899 899 0 1 0 N 0 -100 0 -50
 A 0 -25 25 -899 899 0 1 0 N 0 -50 0 0
 A 0 25 25 -899 899 0 1 0 N 0 0 0 50
 A 0 75 25 -899 899 0 1 0 N 0 50 0 100
 X 1 1 0 150 50 D 50 50 1 1 P
 X 2 2 0 -150 50 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # LED
 #
 DEF LED D 0 40 Y N 1 F N
 F0 "D" 0 100 50 H V C CNN
 F1 "LED" 0 -100 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 LED*
 $ENDFPLIST
 DRAW
 P 2 0 1 8 -50 -50 -50 50 N
 P 2 0 1 0 -50 0 50 0 N
 P 4 0 1 8 50 -50 50 50 -50 0 50 -50 N
 P 5 0 1 0 -120 -30 -180 -90 -150 -90 -180 -90 -180 -60 N
 P 5 0 1 0 -70 -30 -130 -90 -100 -90 -130 -90 -130 -60 N
 X K 1 -150 0 100 R 50 50 1 1 P
 X A 2 150 0 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # LM324QT
 #
 DEF LM324QT U 0 20 Y Y 4 F N
 F0 "U" 0 200 50 H V L CNN
 F1 "LM324QT" 0 -200 50 H V L CNN
 F2 "" -50 100 50 H I C CNN
 F3 "" 50 200 50 H I C CNN
 ALIAS LM32QT
 $FPLIST
 QFN-16-*
 $ENDFPLIST
 DRAW
 P 4 0 1 10 -200 200 200 0 -200 -200 -200 200 f
 X V+ 2 -100 300 150 D 50 50 0 1 W
 X V- 11 -100 -300 150 U 50 50 0 1 W
 X + 1 -300 100 100 R 50 50 1 1 I
 X OUT 15 300 0 100 L 50 50 1 1 O
 X - 16 -300 -100 100 R 50 50 1 1 I
 X + 4 -300 100 100 R 50 50 2 1 I
 X - 5 -300 -100 100 R 50 50 2 1 I
 X OUT 6 300 0 100 L 50 50 2 1 O
 X OUT 7 300 0 100 L 50 50 3 1 O
 X - 8 -300 -100 100 R 50 50 3 1 I
 X + 9 -300 100 100 R 50 50 3 1 I
 X + 12 -300 100 100 R 50 50 4 1 I
 X - 13 -300 -100 100 R 50 50 4 1 I
 X OUT 14 300 0 100 L 50 50 4 1 O
 ENDDRAW
 ENDDEF
 #
 # MY_SW_Push_Dual
 #
 DEF MY_SW_Push_Dual SW 0 40 Y N 1 F N
 F0 "SW" 50 100 50 H V L CNN
 F1 "MY_SW_Push_Dual" 0 -270 50 H V C CNN
 F2 "" 0 200 50 H I C CNN
 F3 "" 0 200 50 H I C CNN
 DRAW
 C -80 -200 20 0 1 0 N
 C -80 0 20 0 1 0 N
 C 80 -200 20 0 1 0 N
 C 80 0 20 0 1 0 N
 P 2 0 1 0 0 -120 0 -140 N
 P 2 0 1 0 0 -80 0 -100 N
 P 2 0 1 0 0 -60 0 -40 N
 P 2 0 1 0 0 -20 0 0 N
 P 2 0 1 0 0 20 0 40 N
 P 2 0 1 0 0 50 0 120 N
 P 2 0 1 0 100 -150 -100 -150 N
 P 2 0 1 0 100 50 -100 50 N
 X 1 1 -200 0 100 R 50 50 0 1 P
 X 2 2 -200 -200 100 R 50 50 0 1 P
 X 3 3 200 0 100 L 50 50 0 1 P
 X 4 4 200 -200 100 L 50 50 0 1 P
 ENDDRAW
 ENDDEF
 #
 # POT
 #
 DEF POT RV 0 40 N N 1 F N
 F0 "RV" -175 0 50 V V C CNN
 F1 "POT" -100 0 50 V V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 Potentiometer*
 $ENDFPLIST
 DRAW
 S 40 100 -40 -100 0 1 10 N
 P 2 0 1 0 100 0 60 0 N
 P 3 0 1 0 45 0 90 20 90 -20 F
 X 1 1 0 150 50 D 50 50 1 1 P
 X 2 2 150 0 50 L 50 50 1 1 P
 X 3 3 0 -150 50 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # PWR_FLAG
 #
 DEF PWR_FLAG #FLG 0 0 N N 1 F P
 F0 "#FLG" 0 75 50 H I C CNN
 F1 "PWR_FLAG" 0 150 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 DRAW
 X pwr 1 0 0 0 U 50 50 0 0 w
 P 6 0 1 0 0 0 0 50 -40 75 0 100 40 75 0 50 N
 ENDDRAW
 ENDDEF
 #
 # R
 #
 DEF R R 0 0 N Y 1 F N
 F0 "R" 80 0 50 V V C CNN
 F1 "R" 0 0 50 V V C CNN
 F2 "" -70 0 50 V I C CNN
 F3 "" 0 0 50 H I C CNN
 $FPLIST
 R_*
 R_*
 $ENDFPLIST
 DRAW
 S -40 -100 40 100 0 1 10 N
 X ~ 1 0 150 50 D 50 50 1 1 P
 X ~ 2 0 -150 50 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # Rotary_Encoder
 #
 DEF Rotary_Encoder SW 0 40 Y Y 1 F N
 F0 "SW" 0 260 50 H V C CNN
 F1 "Rotary_Encoder" 0 -260 50 H V C CNN
 F2 "" -100 160 50 H I C CNN
 F3 "" 0 260 50 H I C CNN
 DRAW
 A 0 0 120 -899 899 0 1 10 N 0 -120 0 120
 C 0 0 75 0 1 10 N
 S -200 200 200 -200 0 1 10 f
 P 2 0 1 10 -10 -70 -10 70 N
 P 2 0 1 10 0 -120 20 -140 N
 P 2 0 1 10 0 -120 20 -100 N
 P 2 0 1 10 0 -70 0 70 N
 P 2 0 1 10 0 120 20 100 N
 P 2 0 1 10 10 70 10 -70 N
 P 2 0 1 10 20 140 0 120 N
 X A 1 -300 100 100 R 50 50 1 1 I
 X C 2 -300 0 100 R 50 50 1 1 I
 X B 3 -300 -100 100 R 50 50 1 1 I
 ENDDRAW
 ENDDEF
 #
 # TEST
 #
 DEF TEST TP 0 40 N N 1 F N
 F0 "TP" 0 300 50 H V C BNN
 F1 "TEST" 0 250 50 H V C CNN
 F2 "" 0 0 50 H I C CNN
 F3 "" 0 0 50 H I C CNN
 DRAW
 P 6 0 1 0 0 200 -50 150 0 100 50 150 0 200 0 200 N
 X ~ 1 0 0 100 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
 # TS30011/12/13
 #
 DEF TS30011/12/13 U 0 40 Y Y 1 F N
 F0 "U" 650 -450 60 H V C CNN
 F1 "TS30011/12/13" -400 -450 60 H V C CNN
 F2 "" 150 0 60 H V C CNN
 F3 "" 150 0 60 H V C CNN
 DRAW
 S -600 400 700 -400 1 1 0 f
 X VSW 1 850 100 200 L 50 50 1 1 w N
 X Vcc 2 -750 300 200 R 50 50 1 1 W
 X Vcc 3 -750 300 200 R 50 50 1 1 W N
 X GND 4 -750 100 200 R 50 50 1 1 W
 X FB 5 -750 -100 200 R 50 50 1 1 I
 X NC 6 -750 -300 200 R 50 50 1 1 N
 X NC 7 -750 -200 200 R 50 50 1 1 N N
 X PG 8 50 -550 200 U 50 50 1 1 P
 X EN 9 850 -300 200 L 50 50 1 1 I
 X BST 10 850 -100 200 L 50 50 1 1 P
 X Vcc 11 -750 300 200 R 50 50 1 1 W N
 X VSW 12 850 100 200 L 50 50 1 1 w
 X VSW 13 850 100 200 L 50 50 1 1 w N
 X PWGND 14 850 300 200 L 50 50 1 1 w N
 X PWGND 15 850 300 200 L 50 50 1 1 w
 X VSW 16 850 100 200 L 50 50 1 1 w N
 ENDDRAW
 ENDDEF
 #
 #End Library
--- a/pcbs/extension_board/extension_board.kicad_pcb
+++ b/pcbs/extension_board/extension_board.kicad_pcb
--- a/pcbs/extension_board/extension_board.pro
+++ b/pcbs/extension_board/extension_board.pro
@ -0,0 +1,75 @@
 update=fre 17 nov 2017 11:09:53
 version=1
 last_client=kicad
 [pcbnew]
 version=1
 LastNetListRead=
 UseCmpFile=1
 PadDrill=0.600000000000
 PadDrillOvalY=0.600000000000
 PadSizeH=1.500000000000
 PadSizeV=1.500000000000
 PcbTextSizeV=1.500000000000
 PcbTextSizeH=1.500000000000
 PcbTextThickness=0.300000000000
 ModuleTextSizeV=1.000000000000
 ModuleTextSizeH=1.000000000000
 ModuleTextSizeThickness=0.150000000000
 SolderMaskClearance=0.000000000000
 SolderMaskMinWidth=0.000000000000
 DrawSegmentWidth=0.200000000000
 BoardOutlineThickness=0.100000000000
 ModuleOutlineThickness=0.150000000000
 [cvpcb]
 version=1
 NetIExt=net
 [general]
 version=1
 [schematic_editor]
 version=1
 PageLayoutDescrFile=
 PlotDirectoryName=
 SubpartIdSeparator=0
 SubpartFirstId=65
 NetFmtName=
 SpiceForceRefPrefix=0
 SpiceUseNetNumbers=0
 LabSize=60
 [eeschema]
 version=1
 LibDir=
 [eeschema/libraries]
 LibName1=power
 LibName2=device
 LibName3=transistors
 LibName4=conn
 LibName5=linear
 LibName6=regul
 LibName7=74xx
 LibName8=cmos4000
 LibName9=adc-dac
 LibName10=memory
 LibName11=xilinx
 LibName12=microcontrollers
 LibName13=dsp
 LibName14=microchip
 LibName15=analog_switches
 LibName16=motorola
 LibName17=texas
 LibName18=intel
 LibName19=audio
 LibName20=interface
 LibName21=digital-audio
 LibName22=philips
 LibName23=display
 LibName24=cypress
 LibName25=siliconi
 LibName26=opto
 LibName27=atmel
 LibName28=contrib
 LibName29=valves
 LibName30=/home/maximilian/MyKiCadLibs/SchematicSymbols/myopamps
 LibName31=/home/maximilian/MyKiCadLibs/SchematicSymbols/mydacs
 LibName32=/home/maximilian/MyKiCadLibs/SchematicSymbols/mydcdcs
 LibName33=switches
 LibName34=/home/maximilian/MyKiCadLibs/SchematicSymbols/mytactilesw
--- a/pcbs/extension_board/extension_board.sch
+++ b/pcbs/extension_board/extension_board.sch
@ -0,0 +1,75 @@
 EESchema Schematic File Version 2
 LIBS:power
 LIBS:device
 LIBS:transistors
 LIBS:conn
 LIBS:linear
 LIBS:regul
 LIBS:74xx
 LIBS:cmos4000
 LIBS:adc-dac
 LIBS:memory
 LIBS:xilinx
 LIBS:microcontrollers
 LIBS:dsp
 LIBS:microchip
 LIBS:analog_switches
 LIBS:motorola
 LIBS:texas
 LIBS:intel
 LIBS:audio
 LIBS:interface
 LIBS:digital-audio
 LIBS:philips
 LIBS:display
 LIBS:cypress
 LIBS:siliconi
 LIBS:opto
 LIBS:atmel
 LIBS:contrib
 LIBS:valves
 LIBS:myopamps
 LIBS:mydacs
 LIBS:mydcdcs
 LIBS:switches
 LIBS:mytactilesw
 LIBS:extension_board-cache
 EELAYER 25 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 1 37
 Title "Extension Board for the Nucleo64-F103RB"
 Date "2017-11-16"
 Rev ""
 Comp "Uppsala University"
 Comment1 ""
 Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
 $Sheet
 S 4300 2900 1500 1100
 U 5A0916C5
 F0 "LEDDriver" 60
 F1 "LEDDriver.sch" 60
 $EndSheet
 $Sheet
 S 6000 2900 1500 1100
 U 5A15F128
 F0 "Power" 60
 F1 "power.sch" 60
 $EndSheet
 $Sheet
 S 2600 2900 1500 1100
 U 5A0C4E1C
 F0 "InterfaceNucleoFee103RB" 60
 F1 "InterfaceNucleoF103RB.sch" 60
 $EndSheet
 $Sheet
 S 7700 2900 1500 1100
 U 5A0AF062
 F0 "UI" 60
 F1 "UI.sch" 60
 $EndSheet
 $EndSCHEMATC
--- a/pcbs/extension_board/output/3d_pic_1.jpg
+++ b/pcbs/extension_board/output/3d_pic_1.jpg
--- a/pcbs/extension_board/output/3d_pic_2.jpg
+++ b/pcbs/extension_board/output/3d_pic_2.jpg
--- a/pcbs/extension_board/output/led_driver.png
+++ b/pcbs/extension_board/output/led_driver.png
--- a/pcbs/extension_board/power.sch
+++ b/pcbs/extension_board/power.sch
@ -0,0 +1,595 @@
 EESchema Schematic File Version 2
 LIBS:power
 LIBS:device
 LIBS:transistors
 LIBS:conn
 LIBS:linear
 LIBS:regul
 LIBS:74xx
 LIBS:cmos4000
 LIBS:adc-dac
 LIBS:memory
 LIBS:xilinx
 LIBS:microcontrollers
 LIBS:dsp
 LIBS:microchip
 LIBS:analog_switches
 LIBS:motorola
 LIBS:texas
 LIBS:intel
 LIBS:audio
 LIBS:interface
 LIBS:digital-audio
 LIBS:philips
 LIBS:display
 LIBS:cypress
 LIBS:siliconi
 LIBS:opto
 LIBS:atmel
 LIBS:contrib
 LIBS:valves
 LIBS:myopamps
 LIBS:mydacs
 LIBS:mydcdcs
 LIBS:switches
 LIBS:mytactilesw
 LIBS:extension_board-cache
 EELAYER 25 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
 Sheet 35 37
 Title "Power Connection and Regulation"
 Date "2017-11-16"
 Rev ""
 Comp "Uppsala University"
 Comment1 ""
 Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
 $Comp
 L Barrel_Jack J5
 U 1 1 5A15F131
 P 4240 2510
 F 0 "J5" H 4240 2720 50  0000 C CNN
 F 1 "Barrel_Jack" H 4240 2335 50  0000 C CNN
 F 2 "MyPowerConn:BARREL_JACK" H 4290 2470 50  0001 C CNN
 F 3 "" H 4290 2470 50  0001 C CNN
 	1    4240 2510
 	1    0    0    -1  
 $EndComp
 $Comp
 L LED D1
 U 1 1 5A0AC005
 P 5090 2610
 F 0 "D1" H 5090 2710 50  0000 C CNN
 F 1 "LED" H 5090 2510 50  0000 C CNN
 F 2 "LEDs:LED_0603" H 5090 2610 50  0001 C CNN
 F 3 "http://katalog.we-online.de/led/datasheet/150060GS75000.pdf" H 5090 2610 50  0001 C CNN
 F 4 "732-4971-1-ND" H 5090 2610 60  0001 C CNN "Digikey"
 	1    5090 2610
 	0    -1   -1   0   
 $EndComp
 Text Notes 5730 2830 0    60   ~ 0
 Power Indicating LED V18\n----------------------\nV_F 	= 3.2 V (typical)\nI 	= 5 mA (desired)\nR 	= 2.96 k (appr. 3 k, E24) 
 $Comp
 L R R199
 U 1 1 5A0AD655
 P 5090 2970
 F 0 "R199" V 5170 2970 50  0000 C CNN
 F 1 "3k" V 5090 2970 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 5020 2970 50  0001 C CNN
 F 3 "" H 5090 2970 50  0001 C CNN
 F 4 "311-3.0KGRCT-ND" V 5090 2970 60  0001 C CNN "Digikey"
 	1    5090 2970
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR294
 U 1 1 5A0AD8CE
 P 5090 3180
 F 0 "#PWR294" H 5090 2930 50  0001 C CNN
 F 1 "GND" H 5090 3030 50  0000 C CNN
 F 2 "" H 5090 3180 50  0001 C CNN
 F 3 "" H 5090 3180 50  0001 C CNN
 	1    5090 3180
 	1    0    0    -1  
 $EndComp
 Text GLabel 5260 2410 2    60   Output ~ 0
 V18
 $Comp
 L L L1
 U 1 1 5A0AFB54
 P 5365 5345
 F 0 "L1" V 5315 5345 50  0000 C CNN
 F 1 "L" V 5440 5345 50  0000 C CNN
 F 2 "MyInductors:WE-PD2-SMD-Power-Inductor" H 5365 5345 50  0001 C CNN
 F 3 "http://www.farnell.com/datasheets/1920233.pdf" H 5365 5345 50  0001 C CNN
 F 4 "732-1316-1-ND" V 5365 5345 60  0001 C CNN "Digikey"
 	1    5365 5345
 	0    -1   -1   0   
 $EndComp
 $Comp
 L C C136
 U 1 1 5A0B087F
 P 5640 5615
 F 0 "C136" H 5665 5715 50  0000 L CNN
 F 1 "22u" H 5665 5515 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 5678 5465 50  0001 C CNN
 F 3 "https://media.digikey.com/pdf/Data%20Sheets/Samsung%20PDFs/CL21A226MQCLQNC_character.pdf" H 5640 5615 50  0001 C CNN
 F 4 "1276-2412-1-ND" H 5640 5615 60  0001 C CNN "Digikey"
 	1    5640 5615
 	-1   0    0    -1  
 $EndComp
 $Comp
 L C C137
 U 1 1 5A0B15B3
 P 5915 5615
 F 0 "C137" H 5940 5715 50  0000 L CNN
 F 1 "22u" H 5940 5515 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 5953 5465 50  0001 C CNN
 F 3 "https://media.digikey.com/pdf/Data%20Sheets/Samsung%20PDFs/CL21A226MQCLQNC_character.pdf" H 5915 5615 50  0001 C CNN
 F 4 "1276-2412-1-ND" H 5915 5615 60  0001 C CNN "Digikey"
 	1    5915 5615
 	-1   0    0    -1  
 $EndComp
 $Comp
 L C C135
 U 1 1 5A0B64DA
 P 4780 5545
 F 0 "C135" H 4805 5645 50  0000 L CNN
 F 1 "22n" H 4805 5445 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 4818 5395 50  0001 C CNN
 F 3 "" H 4780 5545 50  0001 C CNN
 F 4 "1276-1104-1-ND" H 4780 5545 60  0001 C CNN "Digikey"
 	1    4780 5545
 	0    1    -1   0   
 $EndComp
 $Comp
 L TS30011/12/13 U34
 U 1 1 5A0B688D
 P 3715 5445
 F 0 "U34" H 4365 4995 60  0000 C CNN
 F 1 "TS30011/12/13" H 3315 4995 60  0000 C CNN
 F 2 "QFN:QFN-16-1EP_3x3mm_Pitch0.5mm" H 3865 5445 60  0001 C CNN
 F 3 "http://www.semtech.com/images/datasheet/ts30011_12_13.pdf" H 3865 5445 60  0001 C CNN
 F 4 "TS30011-M050QFNRCT-ND" H 3715 5445 60  0001 C CNN "Digikey"
 	1    3715 5445
 	1    0    0    -1  
 $EndComp
 $Comp
 L D_Schottky D2
 U 1 1 5A0B72C0
 P 5115 5615
 F 0 "D2" V 5115 5740 50  0000 C CNN
 F 1 "D_Schottky" V 5115 5890 50  0001 C CNN
 F 2 "Diodes_SMD:D_SOD-123" H 5115 5615 50  0001 C CNN
 F 3 "https://assets.nexperia.com/documents/data-sheet/PMEG3020EGW.pdf" H 5115 5615 50  0001 C CNN
 F 4 "1727-7332-1-ND" V 5115 5615 60  0001 C CNN "Digikey"
 	1    5115 5615
 	0    1    1    0   
 $EndComp
 Text GLabel 1830 5145 0    60   Input ~ 0
 V18
 $Comp
 L GND #PWR295
 U 1 1 5A0B8173
 P 5115 5940
 F 0 "#PWR295" H 5115 5690 50  0001 C CNN
 F 1 "GND" H 5115 5790 50  0000 C CNN
 F 2 "" H 5115 5940 50  0001 C CNN
 F 3 "" H 5115 5940 50  0001 C CNN
 	1    5115 5940
 	1    0    0    -1  
 $EndComp
 Text GLabel 5915 5170 1    60   UnSpc ~ 0
 FB
 Text GLabel 2965 5545 0    60   UnSpc ~ 0
 FB
 $Comp
 L GND #PWR293
 U 1 1 5A0B8CE5
 P 4690 5160
 F 0 "#PWR293" H 4690 4910 50  0001 C CNN
 F 1 "GND" H 4690 5010 50  0000 C CNN
 F 2 "" H 4690 5160 50  0001 C CNN
 F 3 "" H 4690 5160 50  0001 C CNN
 	1    4690 5160
 	1    0    0    -1  
 $EndComp
 $Comp
 L GND #PWR292
 U 1 1 5A0BC4D5
 P 1985 5940
 F 0 "#PWR292" H 1985 5690 50  0001 C CNN
 F 1 "GND" H 1985 5790 50  0000 C CNN
 F 2 "" H 1985 5940 50  0001 C CNN
 F 3 "" H 1985 5940 50  0001 C CNN
 	1    1985 5940
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C134
 U 1 1 5A0BC504
 P 2535 5525
 F 0 "C134" H 2560 5625 50  0000 L CNN
 F 1 "10n" H 2560 5425 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 2573 5375 50  0001 C CNN
 F 3 "" H 2535 5525 50  0001 C CNN
 F 4 "311-1085-1-ND" H 2535 5525 60  0001 C CNN "Digikey"
 	1    2535 5525
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C133
 U 1 1 5A0BC63E
 P 2260 5525
 F 0 "C133" H 2285 5625 50  0000 L CNN
 F 1 "100n" H 2285 5425 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 2298 5375 50  0001 C CNN
 F 3 "" H 2260 5525 50  0001 C CNN
 F 4 "311-1088-1-ND" H 2260 5525 60  0001 C CNN "Digikey"
 	1    2260 5525
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C132
 U 1 1 5A0BC687
 P 1985 5525
 F 0 "C132" H 2010 5625 50  0000 L CNN
 F 1 "10u" H 2010 5425 50  0000 L CNN
 F 2 "Resistors_SMD:R_0603" H 2023 5375 50  0001 C CNN
 F 3 "" H 1985 5525 50  0001 C CNN
 F 4 "490-6403-6-ND" H 1985 5525 60  0001 C CNN "Digikey"
 	1    1985 5525
 	1    0    0    -1  
 $EndComp
 Text GLabel 6115 5345 2    60   Output ~ 0
 V5
 Text Notes 4910 4875 0    60   ~ 0
 A low ESR is required for the output capacitors. 
 $Comp
 L R R197
 U 1 1 5A0C01F9
 P 4040 6395
 F 0 "R197" V 4120 6395 50  0000 C CNN
 F 1 "10k" V 4040 6395 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 3970 6395 50  0001 C CNN
 F 3 "" H 4040 6395 50  0001 C CNN
 F 4 "311-10KGRCT-ND" V 4040 6395 60  0001 C CNN "Digikey"
 	1    4040 6395
 	0    1    -1   0   
 $EndComp
 Text GLabel 4260 6395 2    60   UnSpc ~ 0
 3V3
 $Comp
 L LED D4
 U 1 1 5A0C1EDB
 P 8770 4200
 F 0 "D4" H 8770 4300 50  0000 C CNN
 F 1 "LED" H 8770 4100 50  0000 C CNN
 F 2 "LEDs:LED_0603" H 8770 4200 50  0001 C CNN
 F 3 "http://katalog.we-online.de/led/datasheet/150060GS75000.pdf" H 8770 4200 50  0001 C CNN
 F 4 "732-4971-1-ND" H 8770 4200 60  0001 C CNN "Digikey"
 	1    8770 4200
 	0    -1   -1   0   
 $EndComp
 $Comp
 L R R201
 U 1 1 5A0C1EE2
 P 8770 4560
 F 0 "R201" V 8850 4560 50  0000 C CNN
 F 1 "360R" V 8770 4560 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8700 4560 50  0001 C CNN
 F 3 "" H 8770 4560 50  0001 C CNN
 F 4 "311-360GRCT-ND" V 8770 4560 60  0001 C CNN "Digikey"
 	1    8770 4560
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR297
 U 1 1 5A0C1EE8
 P 8770 4770
 F 0 "#PWR297" H 8770 4520 50  0001 C CNN
 F 1 "GND" H 8770 4620 50  0000 C CNN
 F 2 "" H 8770 4770 50  0001 C CNN
 F 3 "" H 8770 4770 50  0001 C CNN
 	1    8770 4770
 	1    0    0    -1  
 $EndComp
 Text GLabel 8770 3880 1    60   UnSpc ~ 0
 V5
 Text Notes 8970 4330 0    60   ~ 0
 Power Indicating LED V5\n----------------------\nV_F 	= 3.2 V (typical)\nI 	= 5 mA (desired)\nR 	= 360 R (E24) 
 $Comp
 L R R198
 U 1 1 5A0D7E56
 P 4810 2410
 F 0 "R198" V 4890 2410 50  0000 C CNN
 F 1 "0R" V 4810 2410 50  0000 C CNN
 F 2 "Resistors_SMD:R_1206" V 4740 2410 50  0001 C CNN
 F 3 "" H 4810 2410 50  0001 C CNN
 F 4 "311-0.0ERCT-ND" V 4810 2410 60  0001 C CNN "Digikey"
 	1    4810 2410
 	0    1    1    0   
 $EndComp
 Text Notes 4065 1985 0    60   ~ 0
 1206 resistor footprint for being able to solder in a switch (housing) in a\nlater revision.
 $Comp
 L TEST TP1
 U 1 1 5A0DAD3B
 P 3460 6395
 F 0 "TP1" H 3460 6695 50  0000 C BNN
 F 1 "PG" H 3460 6645 50  0000 C CNN
 F 2 "MyTestpoints:TP_SMD_quadr_1mm" H 3460 6395 50  0001 C CNN
 F 3 "" H 3460 6395 50  0001 C CNN
 	1    3460 6395
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	5090 3120 5090 3180
 Wire Wire Line
 	5090 2820 5090 2760
 Wire Wire Line
 	4565 5345 5215 5345
 Wire Wire Line
 	4630 5545 4565 5545
 Wire Wire Line
 	4930 5545 5015 5545
 Wire Wire Line
 	5015 5545 5015 5345
 Connection ~ 5015 5345
 Wire Wire Line
 	5915 5170 5915 5465
 Wire Wire Line
 	5640 5345 5640 5465
 Connection ~ 5640 5345
 Wire Wire Line
 	5115 5465 5115 5345
 Connection ~ 5115 5345
 Wire Wire Line
 	5115 5765 5115 5940
 Wire Wire Line
 	5640 5765 5640 5870
 Wire Wire Line
 	5115 5870 5915 5870
 Wire Wire Line
 	5915 5870 5915 5765
 Connection ~ 5115 5870
 Connection ~ 5640 5870
 Connection ~ 5915 5345
 Wire Wire Line
 	4690 5160 4690 5145
 Wire Wire Line
 	4690 5145 4565 5145
 Wire Wire Line
 	5515 5345 6115 5345
 Wire Wire Line
 	1830 5145 2965 5145
 Wire Wire Line
 	1985 5145 1985 5375
 Wire Wire Line
 	2260 5375 2260 5145
 Connection ~ 2260 5145
 Wire Wire Line
 	2535 5375 2535 5145
 Connection ~ 2535 5145
 Wire Wire Line
 	2535 5865 2535 5675
 Wire Wire Line
 	1985 5865 2715 5865
 Wire Wire Line
 	1985 5675 1985 5940
 Connection ~ 1985 5865
 Wire Wire Line
 	2260 5675 2260 5865
 Connection ~ 2260 5865
 Wire Wire Line
 	2715 5865 2715 5345
 Wire Wire Line
 	2715 5345 2965 5345
 Connection ~ 2535 5865
 Connection ~ 1985 5145
 Wire Wire Line
 	4260 6395 4190 6395
 Wire Wire Line
 	3765 6395 3765 5995
 Wire Wire Line
 	8770 4710 8770 4770
 Wire Wire Line
 	8770 4410 8770 4350
 Wire Wire Line
 	8770 3880 8770 4050
 Wire Wire Line
 	4540 2410 4660 2410
 Wire Wire Line
 	4680 3150 5090 3150
 Wire Wire Line
 	4680 2510 4540 2510
 Connection ~ 5090 3150
 Wire Wire Line
 	4680 2510 4680 3150
 Wire Wire Line
 	4540 2610 4680 2610
 Connection ~ 4680 2610
 Wire Wire Line
 	3460 6395 3890 6395
 Connection ~ 3765 6395
 $Comp
 L TEST TP2
 U 1 1 5A0DBBC6
 P 5090 2385
 F 0 "TP2" H 5090 2685 50  0000 C BNN
 F 1 "V18" H 5090 2635 50  0000 C CNN
 F 2 "MyTestpoints:TP_SMD_quadr_1mm" H 5090 2385 50  0001 C CNN
 F 3 "" H 5090 2385 50  0001 C CNN
 	1    5090 2385
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	4960 2410 5260 2410
 Connection ~ 5090 2410
 Wire Wire Line
 	5090 2385 5090 2460
 NoConn ~ 4565 5745
 $Comp
 L TEST TP4
 U 1 1 5A0DE668
 P 8465 3925
 F 0 "TP4" H 8465 4225 50  0000 C BNN
 F 1 "V5" H 8465 4175 50  0000 C CNN
 F 2 "MyTestpoints:TP_SMD_quadr_1mm" H 8465 3925 50  0001 C CNN
 F 3 "" H 8465 3925 50  0001 C CNN
 	1    8465 3925
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	8770 3980 8465 3980
 Wire Wire Line
 	8465 3980 8465 3925
 Connection ~ 8770 3980
 Text GLabel 2100 2800 2    60   Output ~ 0
 V18
 $Comp
 L Conn_02x05_Odd_Even J4
 U 1 1 5A0E751D
 P 1650 3000
 F 0 "J4" H 1700 3300 50  0000 C CNN
 F 1 "Conn_02x05_Odd_Even" H 1700 2700 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm" H 1650 3000 50  0001 C CNN
 F 3 "http://suddendocs.samtec.com/catalog_english/tsw_th.pdf" H 1650 3000 50  0001 C CNN
 F 4 "TSW-105-07-G-D" H 1650 2700 60  0000 C CNN "Samtec"
 	1    1650 3000
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	1950 2800 2100 2800
 Wire Wire Line
 	2050 2650 2050 3200
 Wire Wire Line
 	2050 3200 1950 3200
 Connection ~ 2050 2800
 Wire Wire Line
 	1950 2900 2050 2900
 Connection ~ 2050 2900
 Wire Wire Line
 	1950 3000 2050 3000
 Connection ~ 2050 3000
 Wire Wire Line
 	1950 3100 2050 3100
 Connection ~ 2050 3100
 Wire Wire Line
 	2050 2650 1350 2650
 Wire Wire Line
 	1350 2650 1350 3200
 Wire Wire Line
 	1350 3200 1450 3200
 Wire Wire Line
 	1450 3100 1350 3100
 Connection ~ 1350 3100
 Wire Wire Line
 	1450 3000 1350 3000
 Connection ~ 1350 3000
 Wire Wire Line
 	1450 2900 1350 2900
 Connection ~ 1350 2900
 Wire Wire Line
 	1450 2800 1350 2800
 Connection ~ 1350 2800
 Text Notes 1000 2550 0    60   ~ 0
 Power connector for extension board (LEDs).
 Text Notes 1600 4865 0    60   ~ 0
 With this step-down converter the STM board is powered.
 $Comp
 L LED D3
 U 1 1 5A0EF3DB
 P 8740 2330
 F 0 "D3" H 8740 2430 50  0000 C CNN
 F 1 "LED" H 8740 2230 50  0000 C CNN
 F 2 "LEDs:LED_0603" H 8740 2330 50  0001 C CNN
 F 3 "http://katalog.we-online.de/led/datasheet/150060GS75000.pdf" H 8740 2330 50  0001 C CNN
 F 4 "732-4971-1-ND" H 8740 2330 60  0001 C CNN "Digikey"
 	1    8740 2330
 	0    -1   -1   0   
 $EndComp
 $Comp
 L R R200
 U 1 1 5A0EF3E2
 P 8740 2690
 F 0 "R200" V 8820 2690 50  0000 C CNN
 F 1 "20R" V 8740 2690 50  0000 C CNN
 F 2 "Resistors_SMD:R_0603" V 8670 2690 50  0001 C CNN
 F 3 "" H 8740 2690 50  0001 C CNN
 F 4 "1276-6153-1-ND" V 8740 2690 60  0001 C CNN "Digikey"
 	1    8740 2690
 	-1   0    0    -1  
 $EndComp
 $Comp
 L GND #PWR296
 U 1 1 5A0EF3E8
 P 8740 2900
 F 0 "#PWR296" H 8740 2650 50  0001 C CNN
 F 1 "GND" H 8740 2750 50  0000 C CNN
 F 2 "" H 8740 2900 50  0001 C CNN
 F 3 "" H 8740 2900 50  0001 C CNN
 	1    8740 2900
 	1    0    0    -1  
 $EndComp
 Text GLabel 8740 2010 1    60   UnSpc ~ 0
 3V3
 Text Notes 8940 2460 0    60   ~ 0
 Power Indicating LED 3V3\n----------------------\nV_F 	= 3.2 V (typical)\nI 	= 5 mA (desired)\nR 	= 20 R (E24) 
 Wire Wire Line
 	8740 2840 8740 2900
 Wire Wire Line
 	8740 2540 8740 2480
 Wire Wire Line
 	8740 2010 8740 2180
 $Comp
 L TEST TP3
 U 1 1 5A0EF3F3
 P 8435 2055
 F 0 "TP3" H 8435 2355 50  0000 C BNN
 F 1 "3V3" H 8435 2305 50  0000 C CNN
 F 2 "MyTestpoints:TP_SMD_quadr_1mm" H 8435 2055 50  0001 C CNN
 F 3 "" H 8435 2055 50  0001 C CNN
 	1    8435 2055
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	8740 2110 8435 2110
 Wire Wire Line
 	8435 2110 8435 2055
 Connection ~ 8740 2110
 Text GLabel 5025 3960 3    60   UnSpc ~ 0
 3V3
 $Comp
 L PWR_FLAG #FLG1
 U 1 1 5A107991
 P 5025 3960
 F 0 "#FLG1" H 5025 4035 50  0001 C CNN
 F 1 "PWR_FLAG" H 5025 4110 50  0000 C CNN
 F 2 "" H 5025 3960 50  0001 C CNN
 F 3 "" H 5025 3960 50  0001 C CNN
 	1    5025 3960
 	1    0    0    -1  
 $EndComp
 Text GLabel 5475 3960 3    60   UnSpc ~ 0
 V18
 $Comp
 L PWR_FLAG #FLG2
 U 1 1 5A107A22
 P 5475 3960
 F 0 "#FLG2" H 5475 4035 50  0001 C CNN
 F 1 "PWR_FLAG" H 5475 4110 50  0000 C CNN
 F 2 "" H 5475 3960 50  0001 C CNN
 F 3 "" H 5475 3960 50  0001 C CNN
 	1    5475 3960
 	1    0    0    -1  
 $EndComp
 Text Notes 4830 3720 0    60   ~ 0
 Tell Kicad, that these voltages are externally driven.
 Text Notes 4060 1605 0    60   ~ 0
 Current Rating (IPC 2221)\n----------------------\nMax. Expected Current = 64 * 0.05 A = 3.2 A \nAbs. Max. Current (dT = 10 K, W = 1.6 mm) = 3.36 A 
 $EndSCHEMATC