diff --git a/pcbs/analog_board/_saved_highCurrent.sch b/pcbs/analog_board/_saved_highCurrent.sch
new file mode 100644
index 0000000..e52726f
--- /dev/null
+++ b/pcbs/analog_board/_saved_highCurrent.sch
@@ -0,0 +1,656 @@
+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:ad8616
+LIBS:analog_board-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 2 3
+Title "High Current Part of Analog Board"
+Date "2017-06-14"
+Rev "v0.2"
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diff --git a/pcbs/backplane/backplane-cache.lib b/pcbs/backplane/backplane-cache.lib
index 5ca692c..be5ed3d 100644
--- a/pcbs/backplane/backplane-cache.lib
+++ b/pcbs/backplane/backplane-cache.lib
@@ -1,6 +1,43 @@
 EESchema-LIBRARY Version 2.3
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+DEF C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H V C CNN
+F3 "" 0 0 50 H V C CNN
+$FPLIST
+ C?
+ C_????_*
+ C_????
+ SMD*_c
+ Capacitor*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # CH340G
 #
 DEF CH340G U 0 40 Y Y 1 F N
@@ -105,6 +142,112 @@ X P14 14 250 -300 150 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# Crystal
+#
+DEF Crystal Y 0 40 N N 1 F N
+F0 "Y" 0 150 50 H V C CNN
+F1 "Crystal" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H V C CNN
+F3 "" 0 0 50 H V C CNN
+$FPLIST
+ Crystal*
+$ENDFPLIST
+DRAW
+S -45 100 45 -100 0 1 12 N
+P 2 0 1 0 -100 0 -75 0 N
+P 2 0 1 20 -75 -50 -75 50 N
+P 2 0 1 20 75 -50 75 50 N
+P 2 0 1 0 100 0 75 0 N
+X 1 1 -150 0 50 R 50 50 1 1 P
+X 2 2 150 0 50 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# GND
+#
+DEF GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H V C CNN
+F3 "" 0 0 50 H V C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# LM2840
+#
+DEF LM2840 U 0 40 Y Y 1 F N
+F0 "U" 300 -250 60 H V C CNN
+F1 "LM2840" -200 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -350 250 350 -200 0 1 0 N
+X CB 1 -500 150 200 R 50 50 1 1 O
+X GND 2 -500 0 200 R 50 50 1 1 W
+X FB 3 -500 -150 200 R 50 50 1 1 I
+X ~SHDN 4 500 -150 200 L 50 50 1 1 I
+X Vin 5 500 0 200 L 50 50 1 1 W
+X SW 6 500 150 200 L 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+# MMBT3904
+#
+DEF MMBT3904 Q 0 0 Y Y 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "MMBT3904" 200 0 50 H V L CNN
+F2 "SOT-23" 200 -75 50 H V L CIN
+F3 "" 0 0 50 H V L CNN
+$FPLIST
+ SOT-23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 0 0 25 0 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X B 1 -200 0 200 R 50 50 1 1 I
+X E 2 100 -200 100 U 50 50 1 1 P
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# PWR_FLAG
+#
+DEF PWR_FLAG #FLG 0 0 N N 1 F P
+F0 "#FLG" 0 95 50 H I C CNN
+F1 "PWR_FLAG" 0 180 50 H V C CNN
+F2 "" 0 0 50 H V C CNN
+F3 "" 0 0 50 H V C CNN
+DRAW
+X pwr 1 0 0 0 U 50 50 0 0 w
+P 6 0 1 0 0 0 0 50 -75 100 0 150 75 100 0 50 N
+ENDDRAW
+ENDDEF
+#
+# R
+#
+DEF R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V V C CNN
+F3 "" 0 0 50 H V C CNN
+$FPLIST
+ R_*
+ Resistor_*
+$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
+#
 # USB_B
 #
 DEF USB_B P 0 40 Y Y 1 F N
diff --git a/pcbs/backplane/backplane.bak b/pcbs/backplane/backplane.bak
index c686e76..4eb0d59 100644
--- a/pcbs/backplane/backplane.bak
+++ b/pcbs/backplane/backplane.bak
@@ -31,6 +31,8 @@ LIBS:valves
 LIBS:silabs
 LIBS:ft232rl
 LIBS:ch340g
+LIBS:lm2840
+LIBS:mcp1700
 LIBS:backplane-cache
 EELAYER 25 0
 EELAYER END
@@ -49,17 +51,17 @@ $EndDescr
 $Comp
 L USB_B P3
 U 1 1 5948EBA5
-P 7200 4300
-F 0 "P3" H 7400 4100 50  0000 C CNN
-F 1 "USB_B" H 7150 4500 50  0000 C CNN
-F 2 "MyUSB:USB3145-30-1-A" V 7150 4200 50  0001 C CNN
-F 3 "http://www.farnell.com/datasheets/1841848.pdf" V 7150 4200 50  0001 C CNN
-F 4 "2443141" H 7200 4300 60  0001 C CNN "Farnell"
-	1    7200 4300
-	-1   0    0    1   
+P 5200 2500
+F 0 "P3" H 5400 2300 50  0000 C CNN
+F 1 "USB_B" H 5150 2700 50  0000 C CNN
+F 2 "MyUSB:USB3145-30-1-A" V 5150 2400 50  0001 C CNN
+F 3 "http://www.farnell.com/datasheets/1841848.pdf" V 5150 2400 50  0001 C CNN
+F 4 "2443141" H 5200 2500 60  0001 C CNN "Farnell"
+	1    5200 2500
+	1    0    0    -1  
 $EndComp
 Text GLabel 1850 2250 0    60   UnSpc ~ 0
-5V
+A5V
 Text GLabel 1850 2350 0    60   UnSpc ~ 0
 ADC1
 Text GLabel 1850 2450 0    60   UnSpc ~ 0
@@ -67,12 +69,12 @@ ADC2
 Text GLabel 2350 2350 2    60   UnSpc ~ 0
 ADC3
 Text GLabel 2350 2250 2    60   UnSpc ~ 0
-GND
+AGND
 $Comp
-L CONN_02X03 P?
+L CONN_02X03 P1
 U 1 1 594F86D2
 P 2100 2350
-F 0 "P?" H 2100 2550 50  0000 C CNN
+F 0 "P1" H 2100 2550 50  0000 C CNN
 F 1 "CONN_02X03" H 2100 2150 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x03" H 2100 1150 50  0001 C CNN
 F 3 "" H 2100 1150 50  0000 C CNN
@@ -82,10 +84,10 @@ $EndComp
 Text GLabel 2350 2450 2    60   UnSpc ~ 0
 ADC4
 $Comp
-L CH340G U?
+L CH340G U1
 U 1 1 594FA4BA
 P 5150 4200
-F 0 "U?" H 5150 3700 60  0000 C CNN
+F 0 "U1" H 5150 3700 60  0000 C CNN
 F 1 "CH340G" H 5150 4700 60  0000 C CNN
 F 2 "SMD_Packages:SO-16-N" H 5350 3550 60  0001 C CNN
 F 3 "http://cdn2.boxtec.ch/pub/diverse/ch340g-datasheet.pdf" H 5350 3550 60  0001 C CNN
@@ -93,7 +95,7 @@ F 3 "http://cdn2.boxtec.ch/pub/diverse/ch340g-datasheet.pdf" H 5350 3550 60  000
 	1    0    0    -1  
 $EndComp
 Text GLabel 9050 2000 0    60   UnSpc ~ 0
-5V
+3.3V
 Text GLabel 9050 2100 0    60   UnSpc ~ 0
 GND
 Text GLabel 9050 2200 0    60   UnSpc ~ 0
@@ -121,10 +123,10 @@ GPIO0
 Text GLabel 9550 2500 2    60   UnSpc ~ 0
 nRST
 $Comp
-L CONN_02X07 P?
+L CONN_02X07 P4
 U 1 1 594FADC8
 P 9300 2300
-F 0 "P?" H 9300 2700 50  0000 C CNN
+F 0 "P4" H 9300 2700 50  0000 C CNN
 F 1 "CONN_02X07" V 9300 2300 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x07" H 9300 1100 50  0001 C CNN
 F 3 "" H 9300 1100 50  0000 C CNN
@@ -132,7 +134,7 @@ F 3 "" H 9300 1100 50  0000 C CNN
 	1    0    0    -1  
 $EndComp
 Text GLabel 9050 3000 0    60   UnSpc ~ 0
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+3.3V
 Text GLabel 9050 3100 0    60   UnSpc ~ 0
 GND
 Text GLabel 9050 3200 0    60   UnSpc ~ 0
@@ -160,18 +162,16 @@ GPIO0
 Text GLabel 9550 3500 2    60   UnSpc ~ 0
 nRST
 $Comp
-L CONN_02X07 P?
+L CONN_02X07 P5
 U 1 1 594FAEEA
 P 9300 3300
-F 0 "P?" H 9300 3700 50  0000 C CNN
+F 0 "P5" H 9300 3700 50  0000 C CNN
 F 1 "CONN_02X07" V 9300 3300 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x07" H 9300 2100 50  0001 C CNN
 F 3 "" H 9300 2100 50  0000 C CNN
 	1    9300 3300
 	1    0    0    -1  
 $EndComp
-Text GLabel 1850 2900 0    60   UnSpc ~ 0
-5V
 Text GLabel 1850 3000 0    60   UnSpc ~ 0
 ADC1
 Text GLabel 1850 3100 0    60   UnSpc ~ 0
@@ -179,12 +179,12 @@ ADC2
 Text GLabel 2350 3000 2    60   UnSpc ~ 0
 ADC3
 Text GLabel 2350 2900 2    60   UnSpc ~ 0
-GND
+AGND
 $Comp
-L CONN_02X03 P?
+L CONN_02X03 P2
 U 1 1 594FAFF9
 P 2100 3000
-F 0 "P?" H 2100 3200 50  0000 C CNN
+F 0 "P2" H 2100 3200 50  0000 C CNN
 F 1 "CONN_02X03" H 2100 2800 50  0001 C CNN
 F 2 "Pin_Headers:Pin_Header_Straight_2x03" H 2100 1800 50  0001 C CNN
 F 3 "" H 2100 1800 50  0000 C CNN
@@ -193,4 +193,275 @@ F 3 "" H 2100 1800 50  0000 C CNN
 $EndComp
 Text GLabel 2350 3100 2    60   UnSpc ~ 0
 ADC4
+NoConn ~ 5650 4550
+NoConn ~ 5650 4450
+NoConn ~ 5650 4350
+NoConn ~ 5650 4250
+NoConn ~ 5650 3950
+$Comp
+L Crystal Y?
+U 1 1 594FC664
+P 3500 4550
+F 0 "Y?" H 3500 4700 50  0000 C CNN
+F 1 "Crystal" H 3500 4400 50  0000 C CNN
+F 2 "Crystals:Crystal_HC49-SD_SMD" H 3500 4550 50  0001 C CNN
+F 3 "http://www.farnell.com/datasheets/1658661.pdf" H 3500 4550 50  0001 C CNN
+F 4 "9713344" H 3500 4550 60  0001 C CNN "Farnell"
+	1    3500 4550
+	-1   0    0    1   
+$EndComp
+$Comp
+L C C?
+U 1 1 594FC845
+P 3200 4750
+F 0 "C?" H 3225 4850 50  0000 L CNN
+F 1 "22p" H 3225 4650 50  0000 L CNN
+F 2 "Resistors_SMD:R_0805" H 3238 4600 50  0001 C CNN
+F 3 "" H 3200 4750 50  0001 C CNN
+F 4 "1625484" H 3200 4750 60  0001 C CNN "Farnell"
+	1    3200 4750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3650 4550 4650 4550
+Wire Wire Line
+	4650 4450 3800 4450
+Wire Wire Line
+	3800 4450 3800 4300
+Wire Wire Line
+	3800 4300 3200 4300
+Wire Wire Line
+	3200 4300 3200 4600
+Wire Wire Line
+	3200 4550 3350 4550
+Connection ~ 3200 4550
+$Comp
+L C C?
+U 1 1 594FCB93
+P 3800 4750
+F 0 "C?" H 3825 4850 50  0000 L CNN
+F 1 "22p" H 3825 4650 50  0000 L CNN
+F 2 "Resistors_SMD:R_0805" H 3838 4600 50  0001 C CNN
+F 3 "" H 3800 4750 50  0001 C CNN
+F 4 "1625484" H 3800 4750 60  0001 C CNN "Farnell"
+	1    3800 4750
+	1    0    0    -1  
+$EndComp
+Connection ~ 3800 4550
+Wire Wire Line
+	3800 4550 3800 4600
+$Comp
+L GND #PWR?
+U 1 1 594FCC52
+P 3200 4950
+F 0 "#PWR?" H 3200 4700 50  0001 C CNN
+F 1 "GND" H 3200 4800 50  0000 C CNN
+F 2 "" H 3200 4950 50  0000 C CNN
+F 3 "" H 3200 4950 50  0000 C CNN
+	1    3200 4950
+	1    0    0    -1  
+$EndComp
+$Comp
+L GND #PWR?
+U 1 1 594FCC7F
+P 3800 4950
+F 0 "#PWR?" H 3800 4700 50  0001 C CNN
+F 1 "GND" H 3800 4800 50  0000 C CNN
+F 2 "" H 3800 4950 50  0000 C CNN
+F 3 "" H 3800 4950 50  0000 C CNN
+	1    3800 4950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3800 4900 3800 4950
+Wire Wire Line
+	3200 4900 3200 4950
+Text GLabel 5200 2800 3    60   BiDi ~ 0
+D+
+Text GLabel 5100 2800 3    60   BiDi ~ 0
+D-
+Text GLabel 4650 4350 0    60   BiDi ~ 0
+D-
+Text GLabel 4650 4250 0    60   BiDi ~ 0
+D+
+$Comp
+L +5V #PWR?
+U 1 1 594FDB60
+P 4650 2650
+F 0 "#PWR?" H 4650 2500 50  0001 C CNN
+F 1 "+5V" H 4650 2790 50  0000 C CNN
+F 2 "" H 4650 2650 50  0000 C CNN
+F 3 "" H 4650 2650 50  0000 C CNN
+	1    4650 2650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5000 2800 5000 2900
+Wire Wire Line
+	5000 2900 4650 2900
+Wire Wire Line
+	4650 2900 4650 2650
+Text GLabel 1850 2900 0    60   UnSpc ~ 0
+A5V
+Text GLabel 1850 1650 0    60   UnSpc ~ 0
+A5V
+$Comp
+L +5V #PWR?
+U 1 1 594FE0AC
+P 2450 1650
+F 0 "#PWR?" H 2450 1500 50  0001 C CNN
+F 1 "+5V" H 2450 1790 50  0000 C CNN
+F 2 "" H 2450 1650 50  0000 C CNN
+F 3 "" H 2450 1650 50  0000 C CNN
+	1    2450 1650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1850 1650 2450 1650
+$Comp
+L GND #PWR?
+U 1 1 594FE150
+P 5600 2900
+F 0 "#PWR?" H 5600 2650 50  0001 C CNN
+F 1 "GND" H 5600 2750 50  0000 C CNN
+F 2 "" H 5600 2900 50  0000 C CNN
+F 3 "" H 5600 2900 50  0000 C CNN
+	1    5600 2900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5300 2800 5300 2900
+Wire Wire Line
+	5300 2900 5600 2900
+$Comp
+L GND #PWR?
+U 1 1 594FE301
+P 5600 2400
+F 0 "#PWR?" H 5600 2150 50  0001 C CNN
+F 1 "GND" H 5600 2250 50  0000 C CNN
+F 2 "" H 5600 2400 50  0000 C CNN
+F 3 "" H 5600 2400 50  0000 C CNN
+	1    5600 2400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5500 2400 5600 2400
+Text GLabel 1850 1850 0    60   UnSpc ~ 0
+AGND
+$Comp
+L GND #PWR?
+U 1 1 594FE3CE
+P 2450 1850
+F 0 "#PWR?" H 2450 1600 50  0001 C CNN
+F 1 "GND" H 2450 1700 50  0000 C CNN
+F 2 "" H 2450 1850 50  0000 C CNN
+F 3 "" H 2450 1850 50  0000 C CNN
+	1    2450 1850
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2450 1850 1850 1850
+$Comp
+L LM2840 U?
+U 1 1 594FEA3B
+P 5250 1450
+F 0 "U?" H 5550 1200 60  0000 C CNN
+F 1 "LM2840" H 5050 1200 60  0000 C CNN
+F 2 "" H 5250 1450 60  0000 C CNN
+F 3 "" H 5250 1450 60  0000 C CNN
+	1    5250 1450
+	1    0    0    -1  
+$EndComp
+$Comp
+L MMBT3904 Q?
+U 1 1 594FEC4A
+P 8550 4700
+F 0 "Q?" H 8750 4775 50  0000 L CNN
+F 1 "MMBT3904" H 8750 4700 50  0000 L CNN
+F 2 "SOT-23" H 8750 4625 50  0001 L CIN
+F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 8550 4700 50  0001 L CNN
+F 4 "1757936RL" H 8550 4700 60  0001 C CNN "Farnell"
+	1    8550 4700
+	1    0    0    -1  
+$EndComp
+$Comp
+L MMBT3904 Q?
+U 1 1 594FEF7C
+P 8550 5500
+F 0 "Q?" H 8750 5575 50  0000 L CNN
+F 1 "MMBT3904" H 8750 5500 50  0000 L CNN
+F 2 "SOT-23" H 8750 5425 50  0001 L CIN
+F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 8550 5500 50  0001 L CNN
+F 4 "1757936RL" H 8550 5500 60  0001 C CNN "Farnell"
+	1    8550 5500
+	1    0    0    1   
+$EndComp
+$Comp
+L R R?
+U 1 1 594FF0B7
+P 8050 4700
+F 0 "R?" V 8130 4700 50  0000 C CNN
+F 1 "10k" V 8050 4700 50  0000 C CNN
+F 2 "Resistors_SMD:R_0805" V 7980 4700 50  0001 C CNN
+F 3 "" H 8050 4700 50  0000 C CNN
+F 4 "9237755" V 8050 4700 60  0001 C CNN "Farnell"
+	1    8050 4700
+	0    1    1    0   
+$EndComp
+Text GLabel 5650 4050 2    60   Output ~ 0
+RTS
+Text GLabel 5650 4150 2    60   Output ~ 0
+DTR
+Text GLabel 7700 4700 0    60   Input ~ 0
+DTR
+$Comp
+L R R?
+U 1 1 594FF500
+P 8050 5500
+F 0 "R?" V 8130 5500 50  0000 C CNN
+F 1 "10k" V 8050 5500 50  0000 C CNN
+F 2 "Resistors_SMD:R_0805" V 7980 5500 50  0001 C CNN
+F 3 "" H 8050 5500 50  0000 C CNN
+F 4 "9237755" V 8050 5500 60  0001 C CNN "Farnell"
+	1    8050 5500
+	0    1    1    0   
+$EndComp
+Text GLabel 7700 5500 0    60   Input ~ 0
+RTS
+Wire Wire Line
+	8200 4700 8350 4700
+Wire Wire Line
+	7700 4700 7900 4700
+Wire Wire Line
+	7700 5500 7900 5500
+Wire Wire Line
+	8200 5500 8350 5500
+Text GLabel 8700 5850 2    60   UnSpc ~ 0
+GPIO0
+Wire Wire Line
+	8650 5700 8650 5850
+Wire Wire Line
+	8650 5850 8700 5850
+Text GLabel 8700 4350 2    60   UnSpc ~ 0
+nRST
+Wire Wire Line
+	8700 4350 8650 4350
+Wire Wire Line
+	8650 4350 8650 4500
+Wire Wire Line
+	8650 4900 8650 4900
+Connection ~ 7850 5500
+Wire Wire Line
+	8650 5300 8650 5250
+Wire Wire Line
+	8650 5250 7800 5250
+Wire Wire Line
+	7800 5250 7800 4700
+Connection ~ 7800 4700
+Wire Wire Line
+	7850 5500 7850 4950
+Wire Wire Line
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+Wire Wire Line
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 $EndSCHEMATC
diff --git a/pcbs/backplane/backplane.pro b/pcbs/backplane/backplane.pro
index c6f74bb..847e455 100644
--- a/pcbs/backplane/backplane.pro
+++ b/pcbs/backplane/backplane.pro
@@ -1,4 +1,4 @@
-update=sön 25 jun 2017 14:20:23
+update=sön 25 jun 2017 16:58:54
 version=1
 last_client=kicad
 [pcbnew]
@@ -25,6 +25,16 @@ version=1
 NetIExt=net
 [general]
 version=1
+[schematic_editor]
+version=1
+PageLayoutDescrFile=
+PlotDirectoryName=
+SubpartIdSeparator=0
+SubpartFirstId=65
+NetFmtName=Pcbnew
+SpiceForceRefPrefix=0
+SpiceUseNetNumbers=0
+LabSize=60
 [eeschema]
 version=1
 LibDir=
@@ -61,13 +71,5 @@ LibName29=valves
 LibName30=myLibs/silabs
 LibName31=myLibs/ft232rl
 LibName32=myLibs/ch340g
-[schematic_editor]
-version=1
-PageLayoutDescrFile=
-PlotDirectoryName=
-SubpartIdSeparator=0
-SubpartFirstId=65
-NetFmtName=Pcbnew
-SpiceForceRefPrefix=0
-SpiceUseNetNumbers=0
-LabSize=60
+LibName33=myLibs/lm2840
+LibName34=myLibs/mcp1700
diff --git a/pcbs/backplane/backplane.sch b/pcbs/backplane/backplane.sch
index 4aefcbc..2406369 100644
--- a/pcbs/backplane/backplane.sch
+++ b/pcbs/backplane/backplane.sch
@@ -31,6 +31,8 @@ LIBS:valves
 LIBS:silabs
 LIBS:ft232rl
 LIBS:ch340g
+LIBS:lm2840
+LIBS:mcp1700
 LIBS:backplane-cache
 EELAYER 25 0
 EELAYER END
@@ -49,17 +51,17 @@ $EndDescr
 $Comp
 L USB_B P3
 U 1 1 5948EBA5
-P 7200 4300
-F 0 "P3" H 7400 4100 50  0000 C CNN
-F 1 "USB_B" H 7150 4500 50  0000 C CNN
-F 2 "MyUSB:USB3145-30-1-A" V 7150 4200 50  0001 C CNN
-F 3 "http://www.farnell.com/datasheets/1841848.pdf" V 7150 4200 50  0001 C CNN
-F 4 "2443141" H 7200 4300 60  0001 C CNN "Farnell"
-	1    7200 4300
-	-1   0    0    1   
+P 5200 2500
+F 0 "P3" H 5400 2300 50  0000 C CNN
+F 1 "USB_B" H 5150 2700 50  0000 C CNN
+F 2 "MyUSB:USB3145-30-1-A" V 5150 2400 50  0001 C CNN
+F 3 "http://www.farnell.com/datasheets/1841848.pdf" V 5150 2400 50  0001 C CNN
+F 4 "2443141" H 5200 2500 60  0001 C CNN "Farnell"
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+	1    0    0    -1  
 $EndComp
 Text GLabel 1850 2250 0    60   UnSpc ~ 0
-5V
+A5V
 Text GLabel 1850 2350 0    60   UnSpc ~ 0
 ADC1
 Text GLabel 1850 2450 0    60   UnSpc ~ 0
@@ -67,7 +69,7 @@ ADC2
 Text GLabel 2350 2350 2    60   UnSpc ~ 0
 ADC3
 Text GLabel 2350 2250 2    60   UnSpc ~ 0
-GND
+AGND
 $Comp
 L CONN_02X03 P1
 U 1 1 594F86D2
@@ -93,7 +95,7 @@ F 3 "http://cdn2.boxtec.ch/pub/diverse/ch340g-datasheet.pdf" H 5350 3550 60  000
 	1    0    0    -1  
 $EndComp
 Text GLabel 9050 2000 0    60   UnSpc ~ 0
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+3.3V
 Text GLabel 9050 2100 0    60   UnSpc ~ 0
 GND
 Text GLabel 9050 2200 0    60   UnSpc ~ 0
@@ -132,7 +134,7 @@ F 3 "" H 9300 1100 50  0000 C CNN
 	1    0    0    -1  
 $EndComp
 Text GLabel 9050 3000 0    60   UnSpc ~ 0
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+3.3V
 Text GLabel 9050 3100 0    60   UnSpc ~ 0
 GND
 Text GLabel 9050 3200 0    60   UnSpc ~ 0
@@ -170,8 +172,6 @@ F 3 "" H 9300 2100 50  0000 C CNN
 	1    9300 3300
 	1    0    0    -1  
 $EndComp
-Text GLabel 1850 2900 0    60   UnSpc ~ 0
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 Text GLabel 1850 3000 0    60   UnSpc ~ 0
 ADC1
 Text GLabel 1850 3100 0    60   UnSpc ~ 0
@@ -179,7 +179,7 @@ ADC2
 Text GLabel 2350 3000 2    60   UnSpc ~ 0
 ADC3
 Text GLabel 2350 2900 2    60   UnSpc ~ 0
-GND
+AGND
 $Comp
 L CONN_02X03 P2
 U 1 1 594FAFF9
@@ -193,4 +193,303 @@ F 3 "" H 2100 1800 50  0000 C CNN
 $EndComp
 Text GLabel 2350 3100 2    60   UnSpc ~ 0
 ADC4
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+F 3 "http://www.farnell.com/datasheets/1658661.pdf" H 3500 4550 50  0001 C CNN
+F 4 "9713344" H 3500 4550 60  0001 C CNN "Farnell"
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+	-1   0    0    1   
+$EndComp
+$Comp
+L C C?
+U 1 1 594FC845
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+F 3 "" H 3200 4750 50  0001 C CNN
+F 4 "1625484" H 3200 4750 60  0001 C CNN "Farnell"
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+	1    0    0    -1  
+$EndComp
+$Comp
+L C C?
+U 1 1 594FCB93
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+F 3 "" H 3800 4750 50  0001 C CNN
+F 4 "1625484" H 3800 4750 60  0001 C CNN "Farnell"
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+	1    0    0    -1  
+$EndComp
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+L GND #PWR?
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+P 3200 4950
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+F 3 "" H 3200 4950 50  0000 C CNN
+	1    3200 4950
+	1    0    0    -1  
+$EndComp
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+L GND #PWR?
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+F 2 "" H 3800 4950 50  0000 C CNN
+F 3 "" H 3800 4950 50  0000 C CNN
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+Text GLabel 5100 2800 3    60   BiDi ~ 0
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+Text GLabel 4650 4350 0    60   BiDi ~ 0
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+Text GLabel 4650 4250 0    60   BiDi ~ 0
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+L +5V #PWR?
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+F 2 "" H 4650 2650 50  0000 C CNN
+F 3 "" H 4650 2650 50  0000 C CNN
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+	1    0    0    -1  
+$EndComp
+Text GLabel 1850 2900 0    60   UnSpc ~ 0
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+Text GLabel 2000 1450 0    60   UnSpc ~ 0
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+L GND #PWR?
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+F 3 "" H 5600 2400 50  0000 C CNN
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+Text GLabel 2000 1850 0    60   UnSpc ~ 0
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+L GND #PWR?
+U 1 1 594FE3CE
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+L LM2840 U?
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+F 3 "" H 5250 1450 60  0000 C CNN
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+F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 8550 4700 50  0001 L CNN
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+	1    0    0    -1  
+$EndComp
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+L MMBT3904 Q?
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+F 0 "Q?" H 8750 5575 50  0000 L CNN
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+F 2 "SOT-23" H 8750 5425 50  0001 L CIN
+F 3 "https://www.fairchildsemi.com/datasheets/MM/MMBT3904.pdf" H 8550 5500 50  0001 L CNN
+F 4 "1757936RL" H 8550 5500 60  0001 C CNN "Farnell"
+	1    8550 5500
+	1    0    0    1   
+$EndComp
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+L R R?
+U 1 1 594FF0B7
+P 8050 4700
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+F 3 "" H 8050 4700 50  0000 C CNN
+F 4 "9237755" V 8050 4700 60  0001 C CNN "Farnell"
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+	0    1    1    0   
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+Text GLabel 5650 4150 2    60   Output ~ 0
+DTR
+Text GLabel 7700 4700 0    60   Input ~ 0
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+$Comp
+L R R?
+U 1 1 594FF500
+P 8050 5500
+F 0 "R?" V 8130 5500 50  0000 C CNN
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+F 3 "" H 8050 5500 50  0000 C CNN
+F 4 "9237755" V 8050 5500 60  0001 C CNN "Farnell"
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+Text GLabel 8700 5850 2    60   UnSpc ~ 0
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+Text GLabel 8700 4350 2    60   UnSpc ~ 0
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+L PWR_FLAG #FLG?
+U 1 1 5950045A
+P 2200 1400
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+F 2 "" H 2200 1400 50  0000 C CNN
+F 3 "" H 2200 1400 50  0000 C CNN
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+Wire Wire Line
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+Wire Wire Line
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+	5300 2800 5300 2900
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+L +5V #PWR?
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+	1    2550 1450
+	1    0    0    -1  
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+Wire Wire Line
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 $EndSCHEMATC
diff --git a/pcbs/backplane/myLibs/lm2840.dcm b/pcbs/backplane/myLibs/lm2840.dcm
new file mode 100644
index 0000000..5f3ed79
--- /dev/null
+++ b/pcbs/backplane/myLibs/lm2840.dcm
@@ -0,0 +1,3 @@
+EESchema-DOCLIB  Version 2.0
+#
+#End Doc Library
diff --git a/pcbs/backplane/myLibs/lm2840.lib b/pcbs/backplane/myLibs/lm2840.lib
new file mode 100644
index 0000000..bbceed2
--- /dev/null
+++ b/pcbs/backplane/myLibs/lm2840.lib
@@ -0,0 +1,22 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# LM2840
+#
+DEF LM2840 U 0 40 Y Y 1 F N
+F0 "U" 300 -250 60 H V C CNN
+F1 "LM2840" -200 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -350 250 350 -200 0 1 0 N
+X CB 1 -500 150 200 R 50 50 1 1 O
+X GND 2 -500 0 200 R 50 50 1 1 W
+X FB 3 -500 -150 200 R 50 50 1 1 I
+X ~SHDN 4 500 -150 200 L 50 50 1 1 I
+X Vin 5 500 0 200 L 50 50 1 1 W
+X SW 6 500 150 200 L 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/pcbs/backplane/myLibs/mcp1700.lib b/pcbs/backplane/myLibs/mcp1700.lib
new file mode 100644
index 0000000..e3334d0
--- /dev/null
+++ b/pcbs/backplane/myLibs/mcp1700.lib
@@ -0,0 +1,22 @@
+EESchema-LIBRARY Version 2.3  Date: Thu 26 Dec 2013 11:20:13 AM CET
+#encoding utf-8
+#
+# MCP1700
+#
+DEF MCP1700 U 0 40 Y Y 1 F N
+F0 "U" 50 100 60 H V C CNN
+F1 "MCP1700" 200 200 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ SOT-23
+$ENDFPLIST
+DRAW
+S 300 -200 -200 50 0 1 0 N
+X GND 1 -300 0 118 R 50 50 1 1 I
+X Vout 2 400 0 118 L 50 50 1 1 I
+X Vin 3 50 -300 118 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/pcbs/backplane/output/electrical_spec_interface.pdf b/pcbs/backplane/output/electrical_spec_interface.pdf
index 48b6dac..1def0c6 100644
Binary files a/pcbs/backplane/output/electrical_spec_interface.pdf and b/pcbs/backplane/output/electrical_spec_interface.pdf differ