Pin Descriptions

5V
Positive supply voltage. This can be either a 3.3V or 5V source

GND
Supply ground

OUT
Analog/PWM output.

DIR
The direction pin is used to set the direction of positive rotation. R3 pulls this pin high to set the clockwise as the default positive direction

SCL
I2C clock line. R1 pull this pin high.

SDA
I2C data line. R2 pulls this pin high.

PGO
Program option (internal pull-up, connected to GND = Programming Option B)