11.
Circuitboard Connections
Standard Connections:
B1
= Primary button input
G
= Ground
B2
= Secondary (back) button input
Sp
= Speedometer pulse input. Can be either magnetic reed
switch to Gnd, or a 0-5V / 0-12V hall signal from the controller
G
= Ground (
black wire
)
S-
= Negative side of current sense Shunt Resistor. Must be within
±
400 mV of Gnd (
white wire
)
S+
= Positive side of Shunt Resistor (
blue wire
)
ThO
= Throttle Over-ride output, same as Th signal but already
connected through a diode, to pull down user’s throttle
V+
= Positive lead to battery pack, can be shared with other devices
requiring battery power that draw less than 500mA (
red wire
)
Advanced Connections:
G
= Ground
Tx
= Serial data output signal, 9600 baud, 0-5V CMOS level
Vi
= Auxiliary input voltage, 0-5V range. Voltages above 5V may
permanently damage the device
5V*
= 5V source, user may draw up to 5mA from this line for
powering external circuits, such as a potentiometer or throttle.
Currents >5mA can overheat the linear regulator
Th
= Throttle output, 0-5V analog throttle signal from CA
Advanced Connections
Standard Connections
Character LCD Header
PIC16F690 Microchip
Precision Op-Amp
R-R Op-Amp
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