PCB Documentation

• PCB Schematic - ​PDF - ​SCH (wiring colors are wrong!)
• PCB Layout - ​PDF - ​PCB
• ​Component data sheets

Box Wiring

Motor to Motor Controller, via DB-9

Motor Wire Colors	DB-9 inner-wires	DB-9 Pin #	Wires in Box	Motor Controller
Red	Black	1	Orange	A+
Red&White	Red	6	Gray	A-
Green	Gray	2	Blue	B+
Green&White	Peach	7	Purple	B-

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PCB to Stretcher Circuit, via DIN conn

Current (DB9 connector) (connected Aug 4, 2016)

Strecher Wire Color	DB9 Pin # (from rounded edge)	Function
Red	1	+5v
Green	2	In-
ext-red	3	detector ground
White	4	In+
Black	5	GND

Arduino side

DIN inner-wires	DB9 Pin# (from rounded edge)	Pin # (PS2)	Function
Brown	1	2	+5v
Orange	2	4	In-
green	3	6	detector ground
Black	4	1	In+
Red	5	3	GND

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OLD as of Aug 4, 2016 (5pin connector) Strain gauge side

Strecher Wire Color	Inline Pin # (from rounded edge)	Function
Red	1	+5v
Green	2	In+
ext-red	3	detector ground
White	4	In-
Black	5	GND

Arduino side

DIN inner-wires	Inline Pin# (from rounded edge)	Pin # (PS2)	Function
Brown	1	1	+5v
Orange	2	2	In+
green	3	?	detector ground
Black	4	3	In-
Red	5	4	GND

OLDEST

|| '''Strecher Wire Color''' || '''DIN inner-wires''' || '''Pin #''' || '''Function''' ||
|| Green || Orange || 2 || In+ ||
|| Black || Red || 4 || GND ||
|| Red || ~~Pale~~ Brown || 1 || +5v ||
|| White || Black || 3 || In- ||
|| ext-red || green || ? || detector ground ||

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Arduino to Motor Controller, via PCB DB-9

Arduino Pin	DB-9 pin #	Wire Color	Motor controller
D2	6	Blue	PUL -
D4	7	Purple	DIR -
+5v	1	Orange	PUL +
+5v	2	Gray	DIR +

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Arduino to Computer, via USB

• USB connector

PWR Barrel to wall, via Power Conn

• PWR Barrel