User Manual

RoboClaw Series

Brushed DC Motor Controllers

RoboClaw Series User Manual

Absolute Encoder Wiring

RoboClaw is capable of reading absolute encoders that output an analog voltage. Like the Analog

input modes for controlling the motors, the absolute encoder voltage must be between 0v and

2v. If using standard potentiometers as absolute encoders the 5v from the RoboClaw can be

divided down to 2v at the potentiometer by adding a resistor from the 5v line on the RoboClaw

to the potentiometer. For a 5k pot R1 / R2 = 7.5k, for a 10k pot R1 / R2 = 15k and for a 20k

pot R1 / R2 = 30k.

The diagram below shows the main battery as the only power source. Make sure the LB jumper

is installed. The 5VDC shown connected is only required if your MCU needs a power source. This

is the BEC feature of RoboClaw. If the MCU has its own power source do not connect the 5VDC.

Motor 1

GND

+2V

M1A

M1B

Positive +

Battery

S1 Signal

S2 Signal

5VDC

UART TX

UART RX

GROUND

5VDC

GROUND

RoboClaw

Motor 2

EN1 A

5VDC

GROUND

Pot 2

GND

+2V

EN2 A

5VDC

GROUND

Pot 1

M2B

M2A

Negative -

SW1