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Nostromo's Wiring:

line	Power Board Label	Arduino Label	Arduino Pin
Radio power control	Vsense	VBAT	A4
Servo power control	Raux	RAUX	A3
Vbat control	Rmain	R5	A2
12v control	R12v	R12	A1
Servo pwm	Servo	SRVO	A0
gnd	Gnd	GND	GND
+5	5v	5v	5v
NC	9v	Vin	Vin

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Other Kayaks:

line	Power Board Label	Arduino Label	Arduino Pin
Radio power control	Sense	unwired	A4
Servo power control	6v	RAUX	A3
Vbat control	Not labeled	unwired	A2
12v control	12v	R12	A1
Servo pwm	Servo	SRVO	A0
gnd	Gnd	GND	GND
+5	vin	5v	5v
power reset	Not labeled	VBAT	12

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Power Board Mods:

Vbat control (unlabeled between 12v and 6v) must be wired to pin 1 of its optorelay (immediately below the left main power connector)
Radio power control must be manually wired to a 2-pin KK connector (along with 5V) in the proto area
Optorelay for 6v control must be double up, and its associated resistor (vertical and to the left) halved to ~300 ohms

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