Datasheet

Hooking it Up

Connecting to the Arduino

The PWM/Servo Driver uses I2C so it take only 4 wires to connect to your Arduino:

"Classic" Arduino wiring:

+5v -> VCC (this is power for the BREAKOUT only, NOT the servo power!)

GND -> GND

Analog 4 -> SDA

Analog 5 -> SCL

Older Mega wiring:

+5v -> VCC (this is power for the BREAKOUT only, NOT the servo power!)

GND -> GND

Digital 20 -> SDA

Digital 21 -> SCL

R3 and later Arduino wiring (Uno, Mega & Leonardo):

(These boards have dedicated SDA & SCL pins on the header nearest the USB connector)

+5v -> VCC (this is power for the BREAKOUT only, NOT the servo power!)

GND -> GND

SDA -> SDA

SCL -> SCL

Power for the Servos

The VCC pin is just power for the chip itself. If you want to connect servos or LEDs that use the V+ pins, you

MUST connect the V+ pin as well. The V+ pin can be as high as 6V even if VCC is 3.3V (the chip is 5V safe).

We suggest connecting power through the blue terminal block since it is polarity protected.