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:silabs LIBS:ft232rl LIBS:ch340g LIBS:lm2840 LIBS:mcp1700 LIBS:backplane-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L USB_B P1 U 1 1 5948EBA5 P 1150 3500 F 0 "P1" H 1350 3300 50 0000 C CNN F 1 "USB_B" H 1150 3850 50 0000 C CNN F 2 "myUSB:ZX62D-B-5P8(30)" V 1100 3400 50 0001 C CNN F 3 "http://www.farnell.com/cad/2110767.pdf" V 1100 3400 50 0001 C CNN F 4 "2554980" H 1150 3500 60 0001 C CNN "Farnell" 1 1150 3500 1 0 0 -1 $EndComp Text GLabel 4800 2250 0 60 UnSpc ~ 0 5V Text GLabel 4800 2350 0 60 UnSpc ~ 0 ADC1 Text GLabel 4800 2450 0 60 UnSpc ~ 0 ADC2 Text GLabel 5300 2350 2 60 UnSpc ~ 0 ADC3 Text GLabel 5300 2250 2 60 UnSpc ~ 0 GND $Comp L CONN_02X03 P3 U 1 1 594F86D2 P 5050 2350 F 0 "P3" H 5050 2550 50 0000 C CNN F 1 "CONN_02X03" H 5050 2150 50 0001 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x03" H 5050 1150 50 0001 C CNN F 3 "" H 5050 1150 50 0000 C CNN F 4 "TSW-103-08-G-D-RA" H 5050 2350 60 0001 C CNN "Samtec" 1 5050 2350 1 0 0 -1 $EndComp Text GLabel 5300 2450 2 60 UnSpc ~ 0 ADC4 $Comp L CH340G U4 U 1 1 594FA4BA P 5800 3950 F 0 "U4" H 5800 3450 60 0000 C CNN F 1 "CH340G" H 5800 4450 60 0000 C CNN F 2 "SMD_Packages:SO-16-N" H 6000 3300 60 0001 C CNN F 3 "http://cdn2.boxtec.ch/pub/diverse/ch340g-datasheet.pdf" H 6000 3300 60 0001 C CNN 1 5800 3950 1 0 0 -1 $EndComp Text GLabel 6200 1500 0 60 UnSpc ~ 0 3.3V Text GLabel 6200 1600 0 60 UnSpc ~ 0 GND Text GLabel 6200 1700 0 60 UnSpc ~ 0 I2C_SCL Text GLabel 6200 1800 0 60 UnSpc ~ 0 I2C_SDA Text GLabel 6200 1900 0 60 UnSpc ~ 0 UART_TX Text GLabel 6200 2100 0 60 UnSpc ~ 0 DAC1 Text GLabel 6700 2100 2 60 UnSpc ~ 0 DAC2 Text GLabel 6700 1800 2 60 UnSpc ~ 0 GPIO3 Text GLabel 6700 1900 2 60 UnSpc ~ 0 GPIO4 Text GLabel 6200 2000 0 60 UnSpc ~ 0 UART_RX Text GLabel 6700 1700 2 60 UnSpc ~ 0 GPIO2 Text GLabel 6700 1600 2 60 UnSpc ~ 0 GPIO1 Text GLabel 6700 1500 2 60 UnSpc ~ 0 GPIO0 Text GLabel 6700 2000 2 60 UnSpc ~ 0 nRST $Comp L CONN_02X07 P5 U 1 1 594FADC8 P 6450 1800 F 0 "P5" H 6450 2200 50 0000 C CNN F 1 "CONN_02X07" V 6450 1800 50 0001 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x07" H 6450 600 50 0001 C CNN F 3 "" H 6450 600 50 0000 C CNN 1 6450 1800 1 0 0 -1 $EndComp Text GLabel 6200 2500 0 60 UnSpc ~ 0 3.3V Text GLabel 6200 2600 0 60 UnSpc ~ 0 GND Text GLabel 6200 2700 0 60 UnSpc ~ 0 I2C_SCL Text GLabel 6200 2800 0 60 UnSpc ~ 0 I2C_SDA Text GLabel 6200 3100 0 60 UnSpc ~ 0 DAC1 Text GLabel 6700 3100 2 60 UnSpc ~ 0 DAC2 Text GLabel 6700 2800 2 60 UnSpc ~ 0 GPIO3 Text GLabel 6700 2900 2 60 UnSpc ~ 0 GPIO4 Text GLabel 6700 2700 2 60 UnSpc ~ 0 GPIO2 Text GLabel 6700 2600 2 60 UnSpc ~ 0 GPIO1 $Comp L CONN_02X07 P6 U 1 1 594FAEEA P 6450 2800 F 0 "P6" H 6450 3200 50 0000 C CNN F 1 "CONN_02X07" V 6450 2800 50 0001 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x07" H 6450 1600 50 0001 C CNN F 3 "" H 6450 1600 50 0000 C CNN 1 6450 2800 1 0 0 -1 $EndComp Text GLabel 4800 3000 0 60 UnSpc ~ 0 ADC1 Text GLabel 4800 3100 0 60 UnSpc ~ 0 ADC2 Text GLabel 5300 3000 2 60 UnSpc ~ 0 ADC3 Text GLabel 5300 2900 2 60 UnSpc ~ 0 GND $Comp L CONN_02X03 P4 U 1 1 594FAFF9 P 5050 3000 F 0 "P4" H 5050 3200 50 0000 C CNN F 1 "CONN_02X03" H 5050 2800 50 0001 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x03" H 5050 1800 50 0001 C CNN F 3 "" H 5050 1800 50 0000 C CNN F 4 "TSW-103-08-G-D-RA" H 5050 3000 60 0001 C CNN "Samtec" 1 5050 3000 1 0 0 -1 $EndComp Text GLabel 5300 3100 2 60 UnSpc ~ 0 ADC4 NoConn ~ 6300 4300 NoConn ~ 6300 4200 NoConn ~ 6300 4100 NoConn ~ 6300 4000 NoConn ~ 6300 3700 $Comp L Crystal Y1 U 1 1 594FC664 P 4150 4450 F 0 "Y1" H 4150 4600 50 0000 C CNN F 1 "Crystal" H 4150 4300 50 0000 C CNN F 2 "Crystals:Crystal_SMD_HC49-SD" H 4150 4450 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1658661.pdf" H 4150 4450 50 0001 C CNN F 4 "9713344" H 4150 4450 60 0001 C CNN "Farnell" 1 4150 4450 -1 0 0 1 $EndComp $Comp L C C6 U 1 1 594FC845 P 3850 4650 F 0 "C6" H 3875 4750 50 0000 L CNN F 1 "22p" H 3875 4550 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 3888 4500 50 0001 C CNN F 3 "" H 3850 4650 50 0001 C CNN F 4 "1625484" H 3850 4650 60 0001 C CNN "Farnell" 1 3850 4650 1 0 0 -1 $EndComp $Comp L C C7 U 1 1 594FCB93 P 4450 4650 F 0 "C7" H 4475 4750 50 0000 L CNN F 1 "22p" H 4475 4550 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 4488 4500 50 0001 C CNN F 3 "" H 4450 4650 50 0001 C CNN F 4 "1625484" H 4450 4650 60 0001 C CNN "Farnell" 1 4450 4650 1 0 0 -1 $EndComp $Comp L GND #PWR13 U 1 1 594FCC52 P 3850 4850 F 0 "#PWR13" H 3850 4600 50 0001 C CNN F 1 "GND" H 3850 4700 50 0000 C CNN F 2 "" H 3850 4850 50 0000 C CNN F 3 "" H 3850 4850 50 0000 C CNN 1 3850 4850 1 0 0 -1 $EndComp $Comp L GND #PWR16 U 1 1 594FCC7F P 4450 4850 F 0 "#PWR16" H 4450 4600 50 0001 C CNN F 1 "GND" H 4450 4700 50 0000 C CNN F 2 "" H 4450 4850 50 0000 C CNN F 3 "" H 4450 4850 50 0000 C CNN 1 4450 4850 1 0 0 -1 $EndComp Text GLabel 1450 3500 2 60 BiDi ~ 0 D+ Text GLabel 1450 3600 2 60 BiDi ~ 0 D- Text GLabel 5300 4100 0 60 BiDi ~ 0 D- Text GLabel 5300 4000 0 60 BiDi ~ 0 D+ $Comp L +5V #PWR9 U 1 1 594FDB60 P 3150 2650 F 0 "#PWR9" H 3150 2500 50 0001 C CNN F 1 "+5V" H 3150 2790 50 0000 C CNN F 2 "" H 3150 2650 50 0000 C CNN F 3 "" H 3150 2650 50 0000 C CNN 1 3150 2650 1 0 0 -1 $EndComp Text GLabel 4800 2900 0 60 UnSpc ~ 0 5V Text GLabel 4850 1550 0 60 UnSpc ~ 0 5V $Comp L GND #PWR3 U 1 1 594FE150 P 1050 4000 F 0 "#PWR3" H 1050 3750 50 0001 C CNN F 1 "GND" H 1050 3850 50 0000 C CNN F 2 "" H 1050 4000 50 0000 C CNN F 3 "" H 1050 4000 50 0000 C CNN 1 1050 4000 1 0 0 -1 $EndComp Text GLabel 4850 1950 0 60 UnSpc ~ 0 GND $Comp L GND #PWR19 U 1 1 594FE3CE P 5400 1950 F 0 "#PWR19" H 5400 1700 50 0001 C CNN F 1 "GND" H 5400 1800 50 0000 C CNN F 2 "" H 5400 1950 50 0000 C CNN F 3 "" H 5400 1950 50 0000 C CNN 1 5400 1950 1 0 0 -1 $EndComp $Comp L MMBT3904 Q1 U 1 1 594FEC4A P 10100 2050 F 0 "Q1" H 10300 2125 50 0000 L CNN F 1 "MMBT3904" H 10300 2050 50 0000 L CNN F 2 "SOT-23" H 10300 1975 50 0001 L CIN F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 10100 2050 50 0001 L CNN F 4 "1757936RL" H 10100 2050 60 0001 C CNN "Farnell" 1 10100 2050 1 0 0 -1 $EndComp $Comp L MMBT3904 Q2 U 1 1 594FEF7C P 10100 2850 F 0 "Q2" H 10300 2925 50 0000 L CNN F 1 "MMBT3904" H 10300 2850 50 0000 L CNN F 2 "SOT-23" H 10300 2775 50 0001 L CIN F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 10100 2850 50 0001 L CNN F 4 "1757936RL" H 10100 2850 60 0001 C CNN "Farnell" 1 10100 2850 1 0 0 1 $EndComp $Comp L R R5 U 1 1 594FF0B7 P 9600 2050 F 0 "R5" V 9680 2050 50 0000 C CNN F 1 "10k" V 9600 2050 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 9530 2050 50 0001 C CNN F 3 "" H 9600 2050 50 0000 C CNN F 4 "9237755" V 9600 2050 60 0001 C CNN "Farnell" 1 9600 2050 0 1 1 0 $EndComp Text GLabel 6300 3800 2 60 Output ~ 0 RTS Text GLabel 6300 3900 2 60 Output ~ 0 DTR Text GLabel 9250 2050 0 60 Input ~ 0 DTR $Comp L R R6 U 1 1 594FF500 P 9600 2850 F 0 "R6" V 9680 2850 50 0000 C CNN F 1 "10k" V 9600 2850 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 9530 2850 50 0001 C CNN F 3 "" H 9600 2850 50 0000 C CNN F 4 "9237755" V 9600 2850 60 0001 C CNN "Farnell" 1 9600 2850 0 1 1 0 $EndComp Text GLabel 9250 2850 0 60 Input ~ 0 RTS Text GLabel 10250 3200 2 60 UnSpc ~ 0 GPIO0 Text GLabel 10250 1700 2 60 UnSpc ~ 0 nRST Wire Wire Line 4300 4450 4450 4450 Wire Wire Line 3850 4200 3850 4450 Wire Wire Line 3850 4450 3850 4500 Wire Wire Line 3850 4450 4000 4450 Connection ~ 3850 4450 Connection ~ 4450 4450 Wire Wire Line 4450 4300 4450 4450 Wire Wire Line 4450 4450 4450 4500 Wire Wire Line 4450 4800 4450 4850 Wire Wire Line 3850 4800 3850 4850 Wire Wire Line 9750 2050 9900 2050 Wire Wire Line 9250 2050 9350 2050 Wire Wire Line 9350 2050 9450 2050 Wire Wire Line 9250 2850 9400 2850 Wire Wire Line 9400 2850 9450 2850 Wire Wire Line 9750 2850 9900 2850 Wire Wire Line 10200 3050 10200 3200 Wire Wire Line 10200 3200 10250 3200 Wire Wire Line 10250 1700 10200 1700 Wire Wire Line 10200 1700 10200 1850 Wire Wire Line 10200 2250 10200 2250 Connection ~ 9400 2850 Wire Wire Line 10200 2650 10200 2600 Wire Wire Line 10200 2600 9350 2600 Wire Wire Line 9350 2600 9350 2050 Connection ~ 9350 2050 Wire Wire Line 9400 2850 9400 2300 Wire Wire Line 9400 2300 10200 2300 Wire Wire Line 10200 2300 10200 2250 $Comp L +5V #PWR18 U 1 1 594FE0AC P 5400 1550 F 0 "#PWR18" H 5400 1400 50 0001 C CNN F 1 "+5V" H 5400 1690 50 0000 C CNN F 2 "" H 5400 1550 50 0000 C CNN F 3 "" H 5400 1550 50 0000 C CNN 1 5400 1550 1 0 0 -1 $EndComp Wire Wire Line 4850 1550 5400 1550 $Comp L C C9 U 1 1 59500FC6 P 7150 3800 F 0 "C9" H 7175 3900 50 0000 L CNN F 1 "100n" H 7175 3700 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 7188 3650 50 0001 C CNN F 3 "" H 7150 3800 50 0000 C CNN F 4 "499687" H 7150 3800 60 0001 C CNN "Farnell" 1 7150 3800 1 0 0 -1 $EndComp $Comp L GND #PWR22 U 1 1 595010B2 P 6850 4050 F 0 "#PWR22" H 6850 3800 50 0001 C CNN F 1 "GND" H 6850 3900 50 0000 C CNN F 2 "" H 6850 4050 50 0000 C CNN F 3 "" H 6850 4050 50 0000 C CNN 1 6850 4050 1 0 0 -1 $EndComp Wire Wire Line 6850 3950 6850 4000 Wire Wire Line 6850 4000 6850 4050 Wire Wire Line 6850 4000 7150 4000 Wire Wire Line 7150 4000 7150 3950 Connection ~ 6850 4000 Wire Wire Line 6850 3600 6850 3650 Wire Wire Line 7150 3550 7150 3600 Wire Wire Line 7150 3600 7150 3650 Connection ~ 7150 3600 Connection ~ 6850 3600 Text Notes 6500 4400 0 60 ~ 0 Place decoupling capacitors close to component. Wire Wire Line 6300 3600 6850 3600 Wire Wire Line 6850 3600 7150 3600 Text GLabel 4675 3700 0 60 UnSpc ~ 0 UART_TX Text GLabel 4675 3800 0 60 UnSpc ~ 0 UART_RX $Comp L GND #PWR17 U 1 1 5950262A P 4025 3650 F 0 "#PWR17" H 4025 3400 50 0001 C CNN F 1 "GND" H 4025 3500 50 0000 C CNN F 2 "" H 4025 3650 50 0000 C CNN F 3 "" H 4025 3650 50 0000 C CNN 1 4025 3650 1 0 0 -1 $EndComp $Comp L TC1262-33VDB U2 U 1 1 5950380F P 2150 1250 F 0 "U2" H 2150 1575 50 0000 C CNN F 1 "TC1262-33VDB" H 2150 1500 50 0000 C CNN F 2 "SOT-223" H 2200 1000 50 0001 L CIN F 3 "http://www.farnell.com/datasheets/1726424.pdf" H 2150 1050 50 0001 C CNN F 4 "1296594" H 2150 1250 60 0001 C CNN "Farnell" 1 2150 1250 1 0 0 -1 $EndComp Text Notes 750 750 0 60 ~ 0 Brings up to 500mA output.\nOptionally this IC can be substituted by the TS2940, which can provide up to 1A. $Comp L C C4 U 1 1 59503BBD P 2750 1400 F 0 "C4" H 2775 1500 50 0000 L CNN F 1 "1u" H 2775 1300 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 2788 1250 50 0001 C CNN F 3 "" H 2750 1400 50 0000 C CNN F 4 "2496946" H 2750 1400 60 0001 C CNN "Farnell" 1 2750 1400 1 0 0 -1 $EndComp Wire Wire Line 2550 1150 2750 1150 Wire Wire Line 2750 1150 3150 1150 Wire Wire Line 2750 1550 2750 1650 Wire Wire Line 2150 1650 2150 1550 $Comp L GND #PWR8 U 1 1 59503D2B P 2750 1650 F 0 "#PWR8" H 2750 1400 50 0001 C CNN F 1 "GND" H 2750 1500 50 0000 C CNN F 2 "" H 2750 1650 50 0000 C CNN F 3 "" H 2750 1650 50 0000 C CNN 1 2750 1650 1 0 0 -1 $EndComp $Comp L GND #PWR6 U 1 1 59503D7E P 2150 1650 F 0 "#PWR6" H 2150 1400 50 0001 C CNN F 1 "GND" H 2150 1500 50 0000 C CNN F 2 "" H 2150 1650 50 0000 C CNN F 3 "" H 2150 1650 50 0000 C CNN 1 2150 1650 1 0 0 -1 $EndComp $Comp L +5V #PWR1 U 1 1 59503E4F P 700 1150 F 0 "#PWR1" H 700 1000 50 0001 C CNN F 1 "+5V" H 700 1290 50 0000 C CNN F 2 "" H 700 1150 50 0000 C CNN F 3 "" H 700 1150 50 0000 C CNN 1 700 1150 1 0 0 -1 $EndComp Wire Wire Line 700 1150 900 1150 Wire Wire Line 900 1150 1200 1150 Wire Wire Line 1200 1150 1500 1150 Wire Wire Line 1500 1150 1750 1150 $Comp L +3.3V #PWR11 U 1 1 59503F4E P 3150 1150 F 0 "#PWR11" H 3150 1000 50 0001 C CNN F 1 "+3.3V" H 3150 1290 50 0000 C CNN F 2 "" H 3150 1150 50 0000 C CNN F 3 "" H 3150 1150 50 0000 C CNN 1 3150 1150 1 0 0 -1 $EndComp Text GLabel 6250 800 0 60 UnSpc ~ 0 3.3V Text GLabel 6250 1200 0 60 UnSpc ~ 0 GND $Comp L GND #PWR21 U 1 1 5950474B P 6800 1200 F 0 "#PWR21" H 6800 950 50 0001 C CNN F 1 "GND" H 6800 1050 50 0000 C CNN F 2 "" H 6800 1200 50 0000 C CNN F 3 "" H 6800 1200 50 0000 C CNN 1 6800 1200 1 0 0 -1 $EndComp Wire Wire Line 6250 800 6800 800 Wire Wire Line 6250 1200 6500 1200 Wire Wire Line 6500 1200 6800 1200 Text Notes 7700 3450 0 60 ~ 0 Auto program circuit, which is needed by the esptool to program via USB. Text Notes 3150 2100 2 60 ~ 0 Place decoupling capacitors close to component. $Comp L +3.3V #PWR20 U 1 1 59506BA5 P 6800 800 F 0 "#PWR20" H 6800 650 50 0001 C CNN F 1 "+3.3V" H 6800 940 50 0000 C CNN F 2 "" H 6800 800 50 0000 C CNN F 3 "" H 6800 800 50 0000 C CNN 1 6800 800 1 0 0 -1 $EndComp $Comp L LM358 U1 U 1 1 5950BDC0 P 1850 5850 F 0 "U1" H 1850 6050 50 0000 L CNN F 1 "LM358" H 1850 5650 50 0000 L CNN F 2 "SMD_Packages:SOIC-8-N" H 1850 5850 50 0001 C CNN F 3 "" H 1850 5850 50 0000 C CNN F 4 "1564331" H 1850 5850 60 0001 C CNN "Farnell" 1 1850 5850 1 0 0 -1 $EndComp Wire Wire Line 1750 5500 1750 5550 $Comp L GND #PWR4 U 1 1 5950D04B P 1750 6200 F 0 "#PWR4" H 1750 5950 50 0001 C CNN F 1 "GND" H 1750 6050 50 0000 C CNN F 2 "" H 1750 6200 50 0000 C CNN F 3 "" H 1750 6200 50 0000 C CNN 1 1750 6200 1 0 0 -1 $EndComp Wire Wire Line 1750 6150 1750 6200 Wire Wire Line 2150 5850 2200 5850 Wire Wire Line 2200 5850 2250 5850 Wire Wire Line 1450 6450 2200 6450 Wire Wire Line 2200 6450 2200 5850 Connection ~ 2200 5850 Wire Wire Line 1550 5950 1450 5950 Wire Wire Line 1450 5950 1450 6450 Text GLabel 1550 5750 0 60 UnSpc ~ 0 UART_RX $Comp L LED D2 U 1 1 5950E4B0 P 2750 7050 F 0 "D2" H 2750 7150 50 0000 C CNN F 1 "LED" H 2750 6950 50 0000 C CNN F 2 "LEDs:LED_0805" H 2750 7050 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 2750 7050 50 0001 C CNN F 4 "1581242" H 2750 7050 60 0001 C CNN "Farnell" 1 2750 7050 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 5950E4B7 P 2400 7050 F 0 "R2" V 2480 7050 50 0000 C CNN F 1 "1k" V 2400 7050 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 2330 7050 50 0001 C CNN F 3 "" H 2400 7050 50 0001 C CNN F 4 "9237496" V 2400 7050 60 0001 C CNN "Farnell" 1 2400 7050 0 1 1 0 $EndComp $Comp L GND #PWR5 U 1 1 5950E4CB P 1750 7400 F 0 "#PWR5" H 1750 7150 50 0001 C CNN F 1 "GND" H 1750 7250 50 0000 C CNN F 2 "" H 1750 7400 50 0000 C CNN F 3 "" H 1750 7400 50 0000 C CNN 1 1750 7400 1 0 0 -1 $EndComp Wire Wire Line 1750 7350 1750 7400 Wire Wire Line 2150 7050 2200 7050 Wire Wire Line 2200 7050 2250 7050 Wire Wire Line 1450 7650 2200 7650 Wire Wire Line 2200 7650 2200 7050 Connection ~ 2200 7050 Wire Wire Line 1550 7150 1450 7150 Wire Wire Line 1450 7150 1450 7650 Wire Wire Line 3000 7050 3000 7100 Text GLabel 1550 6950 0 60 UnSpc ~ 0 UART_TX Text Notes 800 5300 0 60 ~ 0 Starts blinking when transmission is ongoing, else const. on. $Comp L LED D1 U 1 1 5950FA37 P 2750 5850 F 0 "D1" H 2750 5950 50 0000 C CNN F 1 "LED" H 2750 5750 50 0000 C CNN F 2 "LEDs:LED_0805" H 2750 5850 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 2750 5850 50 0001 C CNN F 4 "1581242" H 2750 5850 60 0001 C CNN "Farnell" 1 2750 5850 1 0 0 -1 $EndComp $Comp L R R1 U 1 1 5950FA3E P 2400 5850 F 0 "R1" V 2480 5850 50 0000 C CNN F 1 "1k" V 2400 5850 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 2330 5850 50 0001 C CNN F 3 "" H 2400 5850 50 0001 C CNN F 4 "9237496" V 2400 5850 60 0001 C CNN "Farnell" 1 2400 5850 0 1 1 0 $EndComp Wire Wire Line 3000 5850 3000 5900 $Comp L CONN_01X03 P8 U 1 1 595100DC P 2350 3525 F 0 "P8" H 2350 3725 50 0000 C CNN F 1 "CONN_01X03" V 2450 3525 50 0000 C CNN F 2 "mySamtec:Samtec-PHT-1-3-01-L-S" H 2350 3525 50 0001 C CNN F 3 "http://suddendocs.samtec.com/catalog_english/pht.pdf" H 2350 3525 50 0001 C CNN 1 2350 3525 0 1 1 0 $EndComp Text GLabel 1900 6700 2 60 Input ~ 0 LED_5V $Comp L LM358 U1 U 2 1 5951093C P 1850 7050 F 0 "U1" H 1850 7250 50 0000 L CNN F 1 "LM358" H 1850 6850 50 0000 L CNN F 2 "SMD_Packages:SOIC-8-N" H 1850 7050 50 0001 C CNN F 3 "" H 1850 7050 50 0000 C CNN F 4 "1564331" H 1850 7050 60 0001 C CNN "Farnell" 2 1850 7050 1 0 0 -1 $EndComp Wire Wire Line 1900 6700 1750 6700 Wire Wire Line 1750 6700 1750 6750 Text GLabel 1850 5500 2 60 Input ~ 0 LED_5V Wire Wire Line 1850 5500 1750 5500 Text GLabel 8350 1050 0 60 UnSpc ~ 0 ADC1 Text GLabel 8350 1250 0 60 UnSpc ~ 0 ADC2 Text GLabel 8350 1450 0 60 UnSpc ~ 0 ADC3 Text GLabel 8350 1650 0 60 UnSpc ~ 0 ADC4 Text GLabel 8350 1850 0 60 UnSpc ~ 0 DAC1 Text GLabel 8350 2250 0 60 UnSpc ~ 0 I2C_SCL Text GLabel 8350 2450 0 60 UnSpc ~ 0 I2C_SDA Text GLabel 8350 2850 0 60 UnSpc ~ 0 3.3V Text GLabel 8350 2650 0 60 UnSpc ~ 0 5V Text GLabel 8350 3050 0 60 UnSpc ~ 0 GND Text Notes 7700 900 0 60 ~ 0 Make debugging easier. $Comp L LM358 U3 U 1 1 59518144 P 4300 5850 F 0 "U3" H 4300 6050 50 0000 L CNN F 1 "LM358" H 4300 5650 50 0000 L CNN F 2 "SMD_Packages:SOIC-8-N" H 4300 5850 50 0001 C CNN F 3 "" H 4300 5850 50 0000 C CNN F 4 "1564331" H 4300 5850 60 0001 C CNN "Farnell" 1 4300 5850 1 0 0 -1 $EndComp Wire Wire Line 4200 5500 4200 5550 $Comp L GND #PWR14 U 1 1 5951814B P 4200 6200 F 0 "#PWR14" H 4200 5950 50 0001 C CNN F 1 "GND" H 4200 6050 50 0000 C CNN F 2 "" H 4200 6200 50 0000 C CNN F 3 "" H 4200 6200 50 0000 C CNN 1 4200 6200 1 0 0 -1 $EndComp Wire Wire Line 4200 6150 4200 6200 Wire Wire Line 4600 5850 4650 5850 Wire Wire Line 4650 5850 4700 5850 Wire Wire Line 3900 6450 4650 6450 Wire Wire Line 4650 6450 4650 5850 Connection ~ 4650 5850 Wire Wire Line 4000 5950 3900 5950 Wire Wire Line 3900 5950 3900 6450 $Comp L LED D4 U 1 1 5951815B P 5200 7050 F 0 "D4" H 5200 7150 50 0000 C CNN F 1 "LED" H 5200 6950 50 0000 C CNN F 2 "LEDs:LED_0805" H 5200 7050 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 5200 7050 50 0001 C CNN F 4 "1581242" H 5200 7050 60 0001 C CNN "Farnell" 1 5200 7050 1 0 0 -1 $EndComp $Comp L R R4 U 1 1 59518162 P 4850 7050 F 0 "R4" V 4930 7050 50 0000 C CNN F 1 "1k" V 4850 7050 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4780 7050 50 0001 C CNN F 3 "" H 4850 7050 50 0001 C CNN F 4 "9237496" V 4850 7050 60 0001 C CNN "Farnell" 1 4850 7050 0 1 1 0 $EndComp $Comp L GND #PWR15 U 1 1 59518168 P 4200 7400 F 0 "#PWR15" H 4200 7150 50 0001 C CNN F 1 "GND" H 4200 7250 50 0000 C CNN F 2 "" H 4200 7400 50 0000 C CNN F 3 "" H 4200 7400 50 0000 C CNN 1 4200 7400 1 0 0 -1 $EndComp Wire Wire Line 4200 7350 4200 7400 Wire Wire Line 4600 7050 4650 7050 Wire Wire Line 4650 7050 4700 7050 Wire Wire Line 3900 7650 4650 7650 Wire Wire Line 4650 7650 4650 7050 Connection ~ 4650 7050 Wire Wire Line 4000 7150 3900 7150 Wire Wire Line 3900 7150 3900 7650 Wire Wire Line 5450 7050 5450 7100 $Comp L LED D3 U 1 1 59518181 P 5200 5850 F 0 "D3" H 5200 5950 50 0000 C CNN F 1 "LED" H 5200 5750 50 0000 C CNN F 2 "LEDs:LED_0805" H 5200 5850 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 5200 5850 50 0001 C CNN F 4 "1581242" H 5200 5850 60 0001 C CNN "Farnell" 1 5200 5850 1 0 0 -1 $EndComp $Comp L R R3 U 1 1 59518188 P 4850 5850 F 0 "R3" V 4930 5850 50 0000 C CNN F 1 "1k" V 4850 5850 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4780 5850 50 0001 C CNN F 3 "" H 4850 5850 50 0001 C CNN F 4 "9237496" V 4850 5850 60 0001 C CNN "Farnell" 1 4850 5850 0 1 1 0 $EndComp Wire Wire Line 5450 5850 5450 5900 Text GLabel 4350 6700 2 60 Input ~ 0 LED_5V $Comp L LM358 U3 U 2 1 59518199 P 4300 7050 F 0 "U3" H 4300 7250 50 0000 L CNN F 1 "LM358" H 4300 6850 50 0000 L CNN F 2 "SMD_Packages:SOIC-8-N" H 4300 7050 50 0001 C CNN F 3 "" H 4300 7050 50 0000 C CNN F 4 "1564331" H 4300 7050 60 0001 C CNN "Farnell" 2 4300 7050 1 0 0 -1 $EndComp Wire Wire Line 4350 6700 4200 6700 Wire Wire Line 4200 6700 4200 6750 Text GLabel 4300 5500 2 60 Input ~ 0 LED_5V Wire Wire Line 4300 5500 4200 5500 Text GLabel 4000 5750 0 60 UnSpc ~ 0 I2C_SCL Text GLabel 4000 6950 0 60 UnSpc ~ 0 I2C_SDA Text GLabel 5450 5900 3 60 Input ~ 0 LED_5V Text GLabel 5450 7100 3 60 Input ~ 0 LED_5V Text GLabel 3000 7100 3 60 Input ~ 0 LED_5V Text GLabel 3000 5900 3 60 Input ~ 0 LED_5V $Comp L +3.3V #PWR23 U 1 1 5951B935 P 7150 3550 F 0 "#PWR23" H 7150 3400 50 0001 C CNN F 1 "+3.3V" H 7150 3690 50 0000 C CNN F 2 "" H 7150 3550 50 0000 C CNN F 3 "" H 7150 3550 50 0000 C CNN 1 7150 3550 1 0 0 -1 $EndComp $Comp L +3.3V #PWR10 U 1 1 5951BB6B P 3050 3900 F 0 "#PWR10" H 3050 3750 50 0001 C CNN F 1 "+3.3V" H 3050 4040 50 0000 C CNN F 2 "" H 3050 3900 50 0000 C CNN F 3 "" H 3050 3900 50 0000 C CNN 1 3050 3900 1 0 0 -1 $EndComp Wire Wire Line 3050 3900 3350 3900 Wire Wire Line 3350 3900 5300 3900 Wire Wire Line 900 1550 900 1600 Wire Wire Line 900 1600 900 1650 $Comp L GND #PWR2 U 1 1 5951BEF5 P 900 1650 F 0 "#PWR2" H 900 1400 50 0001 C CNN F 1 "GND" H 900 1500 50 0000 C CNN F 2 "" H 900 1650 50 0000 C CNN F 3 "" H 900 1650 50 0000 C CNN 1 900 1650 1 0 0 -1 $EndComp Wire Wire Line 900 1250 900 1150 Connection ~ 900 1150 $Comp L C C5 U 1 1 5951CD20 P 3350 4150 F 0 "C5" H 3375 4250 50 0000 L CNN F 1 "100n" H 3375 4050 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 3388 4000 50 0001 C CNN F 3 "" H 3350 4150 50 0000 C CNN F 4 "499687" H 3350 4150 60 0001 C CNN "Farnell" 1 3350 4150 1 0 0 -1 $EndComp Wire Wire Line 3350 4000 3350 3900 Connection ~ 3350 3900 $Comp L GND #PWR12 U 1 1 5951CEB9 P 3350 4400 F 0 "#PWR12" H 3350 4150 50 0001 C CNN F 1 "GND" H 3350 4250 50 0000 C CNN F 2 "" H 3350 4400 50 0000 C CNN F 3 "" H 3350 4400 50 0000 C CNN 1 3350 4400 1 0 0 -1 $EndComp Wire Wire Line 3350 4300 3350 4400 $Comp L C C1 U 1 1 5951D05D P 900 1400 F 0 "C1" H 925 1500 50 0000 L CNN F 1 "10u" H 925 1300 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 938 1250 50 0001 C CNN F 3 "" H 900 1400 50 0000 C CNN F 4 "1833812" H 900 1400 60 0001 C CNN "Farnell" 1 900 1400 1 0 0 -1 $EndComp $Comp L C C8 U 1 1 5951D466 P 6850 3800 F 0 "C8" H 6875 3900 50 0000 L CNN F 1 "1u" H 6875 3700 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 6888 3650 50 0001 C CNN F 3 "" H 6850 3800 50 0000 C CNN F 4 "2496946" H 6850 3800 60 0001 C CNN "Farnell" 1 6850 3800 1 0 0 -1 $EndComp Wire Wire Line 5300 4200 3850 4200 Wire Wire Line 4450 4300 5300 4300 $Comp L C C3 U 1 1 5951E463 P 1500 1400 F 0 "C3" H 1525 1500 50 0000 L CNN F 1 "100n" H 1525 1300 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 1538 1250 50 0001 C CNN F 3 "" H 1500 1400 50 0000 C CNN F 4 "499687" H 1500 1400 60 0001 C CNN "Farnell" 1 1500 1400 1 0 0 -1 $EndComp Wire Wire Line 1200 1550 1200 1600 Wire Wire Line 1500 1600 1500 1550 $Comp L C C2 U 1 1 5951E46C P 1200 1400 F 0 "C2" H 1225 1500 50 0000 L CNN F 1 "1u" H 1225 1300 50 0000 L CNN F 2 "Resistors_SMD:R_0805" H 1238 1250 50 0001 C CNN F 3 "" H 1200 1400 50 0000 C CNN F 4 "2496946" H 1200 1400 60 0001 C CNN "Farnell" 1 1200 1400 1 0 0 -1 $EndComp Wire Wire Line 900 1600 1200 1600 Wire Wire Line 1200 1600 1500 1600 Connection ~ 900 1600 Connection ~ 1200 1600 Wire Wire Line 1200 1250 1200 1150 Connection ~ 1200 1150 Wire Wire Line 1500 1250 1500 1150 Connection ~ 1500 1150 Wire Wire Line 5300 3600 4025 3600 Wire Wire Line 4025 3600 4025 3650 $Comp L LED D5 U 1 1 59521852 P 7950 5600 F 0 "D5" H 7950 5700 50 0000 C CNN F 1 "LED" H 7950 5500 50 0000 C CNN F 2 "LEDs:LED_0805" H 7950 5600 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 7950 5600 50 0001 C CNN F 4 "1581242" H 7950 5600 60 0001 C CNN "Farnell" 1 7950 5600 -1 0 0 1 $EndComp $Comp L R R7 U 1 1 59521916 P 7550 5600 F 0 "R7" V 7630 5600 50 0000 C CNN F 1 "1k" V 7550 5600 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 7480 5600 50 0001 C CNN F 3 "" H 7550 5600 50 0001 C CNN F 4 "9237496" V 7550 5600 60 0001 C CNN "Farnell" 1 7550 5600 0 1 1 0 $EndComp $Comp L LED D6 U 1 1 595219DD P 7950 5950 F 0 "D6" H 7950 6050 50 0000 C CNN F 1 "LED" H 7950 5850 50 0000 C CNN F 2 "LEDs:LED_0805" H 7950 5950 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/1671537.pdf" H 7950 5950 50 0001 C CNN F 4 "1581242" H 7950 5950 60 0001 C CNN "Farnell" 1 7950 5950 -1 0 0 1 $EndComp $Comp L R R8 U 1 1 59521ADD P 7550 5950 F 0 "R8" V 7630 5950 50 0000 C CNN F 1 "1k" V 7550 5950 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 7480 5950 50 0001 C CNN F 3 "" H 7550 5950 50 0001 C CNN F 4 "9237496" V 7550 5950 60 0001 C CNN "Farnell" 1 7550 5950 0 1 1 0 $EndComp $Comp L GND #PWR25 U 1 1 59521CA9 P 8300 6000 F 0 "#PWR25" H 8300 5750 50 0001 C CNN F 1 "GND" H 8300 5850 50 0000 C CNN F 2 "" H 8300 6000 50 0000 C CNN F 3 "" H 8300 6000 50 0000 C CNN 1 8300 6000 1 0 0 -1 $EndComp $Comp L GND #PWR24 U 1 1 59521D9E P 8300 5650 F 0 "#PWR24" H 8300 5400 50 0001 C CNN F 1 "GND" H 8300 5500 50 0000 C CNN F 2 "" H 8300 5650 50 0000 C CNN F 3 "" H 8300 5650 50 0000 C CNN 1 8300 5650 1 0 0 -1 $EndComp Wire Wire Line 7700 5600 7800 5600 Wire Wire Line 8100 5600 8300 5600 Wire Wire Line 8300 5600 8300 5650 Wire Wire Line 8100 5950 8300 5950 Wire Wire Line 8300 5950 8300 6000 Wire Wire Line 7800 5950 7700 5950 Text GLabel 7300 5600 0 60 Input ~ 0 LED_5V Wire Wire Line 7300 5600 7350 5600 Wire Wire Line 7350 5600 7400 5600 $Comp L CONN_01X03 P7 U 1 1 5952271F P 9250 4650 F 0 "P7" H 9250 4850 50 0000 C CNN F 1 "CONN_01X03" V 9350 4650 50 0000 C CNN F 2 "mySamtec:Samtec-PHT-1-3-01-L-S" H 9250 4650 50 0001 C CNN F 3 "http://suddendocs.samtec.com/catalog_english/pht.pdf" H 9250 4650 50 0001 C CNN 1 9250 4650 0 1 1 0 $EndComp NoConn ~ 9150 4450 Text GLabel 9250 4450 1 60 Output ~ 0 LED_3.3V Text Notes 9000 4950 0 60 ~ 0 Jumper enables possibility to turn off all LEDs. $Comp L +3.3V #PWR26 U 1 1 595228F1 P 9350 4450 F 0 "#PWR26" H 9350 4300 50 0001 C CNN F 1 "+3.3V" H 9350 4590 50 0000 C CNN F 2 "" H 9350 4450 50 0000 C CNN F 3 "" H 9350 4450 50 0000 C CNN 1 9350 4450 1 0 0 -1 $EndComp Text GLabel 7300 5950 0 60 Input ~ 0 LED_3.3V Wire Wire Line 7300 5950 7350 5950 Wire Wire Line 7350 5950 7400 5950 Text Notes 4900 4900 0 60 ~ 0 ATTENTION: RX_CH340G has to be connected to TX_ESP8266. The same goes for\nTX_CH340G and RX_EXP8266. \n Wire Wire Line 2750 1250 2750 1150 Connection ~ 2750 1150 Wire Wire Line 4850 1950 5400 1950 $Comp L PWR_FLAG #FLG2 U 1 1 595284C5 P 7350 5550 F 0 "#FLG2" H 7350 5645 50 0001 C CNN F 1 "PWR_FLAG" H 7350 5730 50 0000 C CNN F 2 "" H 7350 5550 50 0000 C CNN F 3 "" H 7350 5550 50 0000 C CNN 1 7350 5550 1 0 0 -1 $EndComp $Comp L PWR_FLAG #FLG3 U 1 1 5952854F P 7350 5900 F 0 "#FLG3" H 7350 5995 50 0001 C CNN F 1 "PWR_FLAG" H 7350 6080 50 0000 C CNN F 2 "" H 7350 5900 50 0000 C CNN F 3 "" H 7350 5900 50 0000 C CNN 1 7350 5900 1 0 0 -1 $EndComp Wire Wire Line 7350 5900 7350 5950 Connection ~ 7350 5950 Wire Wire Line 7350 5550 7350 5600 Connection ~ 7350 5600 $Comp L PWR_FLAG #FLG1 U 1 1 59528BB6 P 6500 1150 F 0 "#FLG1" H 6500 1245 50 0001 C CNN F 1 "PWR_FLAG" H 6500 1330 50 0000 C CNN F 2 "" H 6500 1150 50 0000 C CNN F 3 "" H 6500 1150 50 0000 C CNN 1 6500 1150 1 0 0 -1 $EndComp Wire Wire Line 6500 1150 6500 1200 Connection ~ 6500 1200 Wire Wire Line 1050 3900 1050 4000 NoConn ~ 1150 3900 NoConn ~ 6700 2500 NoConn ~ 6200 2900 NoConn ~ 6700 3000 NoConn ~ 6200 3000 $Comp L TEST ADC1 U 1 1 595236ED P 8350 1050 F 0 "ADC1" H 8350 1350 50 0000 C BNN F 1 "TEST" H 8350 1300 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 1050 50 0001 C CNN F 3 "" H 8350 1050 50 0001 C CNN 1 8350 1050 0 1 1 0 $EndComp $Comp L TEST ADC2 U 1 1 595241FF P 8350 1250 F 0 "ADC2" H 8350 1550 50 0000 C BNN F 1 "TEST" H 8350 1500 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 1250 50 0001 C CNN F 3 "" H 8350 1250 50 0001 C CNN 1 8350 1250 0 1 1 0 $EndComp $Comp L TEST ADC3 U 1 1 59524309 P 8350 1450 F 0 "ADC3" H 8350 1750 50 0000 C BNN F 1 "TEST" H 8350 1700 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 1450 50 0001 C CNN F 3 "" H 8350 1450 50 0001 C CNN 1 8350 1450 0 1 1 0 $EndComp $Comp L TEST ADC4 U 1 1 59524D65 P 8350 1650 F 0 "ADC4" H 8350 1950 50 0000 C BNN F 1 "TEST" H 8350 1900 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 1650 50 0001 C CNN F 3 "" H 8350 1650 50 0001 C CNN 1 8350 1650 0 1 1 0 $EndComp $Comp L TEST DAC1 U 1 1 59524DFA P 8350 1850 F 0 "DAC1" H 8350 2150 50 0000 C BNN F 1 "TEST" H 8350 2100 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 1850 50 0001 C CNN F 3 "" H 8350 1850 50 0001 C CNN 1 8350 1850 0 1 1 0 $EndComp $Comp L TEST SCL1 U 1 1 59524E9A P 8350 2250 F 0 "SCL1" H 8350 2550 50 0000 C BNN F 1 "TEST" H 8350 2500 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 2250 50 0001 C CNN F 3 "" H 8350 2250 50 0001 C CNN 1 8350 2250 0 1 1 0 $EndComp $Comp L TEST SDA1 U 1 1 59524F3D P 8350 2450 F 0 "SDA1" H 8350 2750 50 0000 C BNN F 1 "TEST" H 8350 2700 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 2450 50 0001 C CNN F 3 "" H 8350 2450 50 0001 C CNN 1 8350 2450 0 1 1 0 $EndComp $Comp L TEST 5V0 U 1 1 59524FF7 P 8350 2650 F 0 "5V0" H 8350 2950 50 0000 C BNN F 1 "TEST" H 8350 2900 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 2650 50 0001 C CNN F 3 "" H 8350 2650 50 0001 C CNN 1 8350 2650 0 1 1 0 $EndComp $Comp L TEST 3V3 U 1 1 595250A0 P 8350 2850 F 0 "3V3" H 8350 3150 50 0000 C BNN F 1 "TEST" H 8350 3100 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 2850 50 0001 C CNN F 3 "" H 8350 2850 50 0001 C CNN 1 8350 2850 0 1 1 0 $EndComp $Comp L TEST GND1 U 1 1 59525154 P 8350 3050 F 0 "GND1" H 8350 3350 50 0000 C BNN F 1 "TEST" H 8350 3300 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_3mm" H 8350 3050 50 0001 C CNN F 3 "" H 8350 3050 50 0001 C CNN 1 8350 3050 0 1 1 0 $EndComp $Comp L Q_PMOS_GSD Q3 U 1 1 5952D128 P 2850 2800 F 0 "Q3" H 3050 2850 50 0000 L CNN F 1 "Si2323" H 3050 2750 50 0000 L CNN F 2 "TO_SOT_Packages_SMD:SOT-23" H 3050 2900 50 0001 C CNN F 3 "http://www.farnell.com/datasheets/2049166.pdf" H 2850 2800 50 0001 C CNN F 4 "1470106" H 2850 2800 60 0001 C CNN "Farnell" 1 2850 2800 0 -1 -1 0 $EndComp Wire Wire Line 3050 2700 3150 2700 Wire Wire Line 3150 2700 3150 2650 $Comp L GND #PWR7 U 1 1 5952D660 P 2850 3050 F 0 "#PWR7" H 2850 2800 50 0001 C CNN F 1 "GND" H 2850 2900 50 0000 C CNN F 2 "" H 2850 3050 50 0000 C CNN F 3 "" H 2850 3050 50 0000 C CNN 1 2850 3050 1 0 0 -1 $EndComp Wire Wire Line 2850 3000 2850 3050 Text Notes 4450 2900 2 60 ~ 0 Reverse polarization protection. Wire Wire Line 5000 5850 5050 5850 Wire Wire Line 5350 5850 5450 5850 Wire Wire Line 5350 7050 5450 7050 Wire Wire Line 5050 7050 5000 7050 Wire Wire Line 2900 7050 3000 7050 Wire Wire Line 2600 7050 2550 7050 Wire Wire Line 3000 5850 2900 5850 Wire Wire Line 2600 5850 2550 5850 Text GLabel 8350 2050 0 60 UnSpc ~ 0 DAC2 $Comp L TEST DAC2 U 1 1 595323B0 P 8350 2050 F 0 "DAC2" H 8350 2350 50 0000 C BNN F 1 "TEST" H 8350 2300 50 0000 C CNN F 2 "myTestPoints:TP_SMD_quadr_1mm" H 8350 2050 50 0001 C CNN F 3 "" H 8350 2050 50 0001 C CNN 1 8350 2050 0 1 1 0 $EndComp $Comp L R R? U 1 1 595B8D25 P 4975 3700 F 0 "R?" V 4925 3875 50 0000 C CNN F 1 "470R" V 4975 3700 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4905 3700 50 0001 C CNN F 3 "" H 4975 3700 50 0001 C CNN F 4 "2447662" V 4975 3700 60 0001 C CNN "Farnell" 1 4975 3700 0 1 1 0 $EndComp $Comp L R R? U 1 1 595B8F23 P 4975 3800 F 0 "R?" V 5025 3975 50 0000 C CNN F 1 "470R" V 4975 3800 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4905 3800 50 0001 C CNN F 3 "" H 4975 3800 50 0001 C CNN F 4 "2447662" V 4975 3800 60 0001 C CNN "Farnell" 1 4975 3800 0 1 1 0 $EndComp Wire Wire Line 5125 3700 5300 3700 Wire Wire Line 4825 3700 4675 3700 Wire Wire Line 4675 3800 4825 3800 Wire Wire Line 5125 3800 5300 3800 $Comp L CONN_01X04 J? U 1 1 595BBF5F P 1025 2575 F 0 "J?" H 1025 2825 50 0000 C CNN F 1 "CONN_01X04" V 1125 2575 50 0000 C CNN F 2 "" H 1025 2575 50 0001 C CNN F 3 "" H 1025 2575 50 0001 C CNN 1 1025 2575 -1 0 0 1 $EndComp $Comp L GND #PWR? U 1 1 595BCFB1 P 1875 2575 F 0 "#PWR?" H 1875 2325 50 0001 C CNN F 1 "GND" H 1875 2425 50 0000 C CNN F 2 "" H 1875 2575 50 0000 C CNN F 3 "" H 1875 2575 50 0000 C CNN 1 1875 2575 1 0 0 -1 $EndComp Wire Wire Line 1225 2425 1875 2425 Wire Wire Line 1875 2425 1875 2525 Wire Wire Line 1875 2525 1875 2575 Wire Wire Line 1225 2525 1875 2525 Connection ~ 1875 2525 Wire Wire Line 2350 2700 2350 3325 Text GLabel 2250 3325 1 60 Input ~ 0 5V_BATT Text GLabel 2450 3325 1 60 Input ~ 0 5V_USB Wire Wire Line 2650 2700 2350 2700 Text GLabel 1350 2725 2 60 Input ~ 0 5V_BATT Wire Wire Line 1225 2725 1275 2725 Wire Wire Line 1275 2725 1350 2725 Wire Wire Line 1225 2625 1275 2625 Wire Wire Line 1275 2625 1275 2725 Connection ~ 1275 2725 Text GLabel 1450 3300 2 60 Input ~ 0 5V_USB Text Notes 2825 3875 2 60 ~ 0 Choosable power source. $EndSCHEMATC