Adafruit PCA9685 16-Channel Servo Driver

by Bill Earl

published October 16, 2012, last updated October 16, 2012

posted in Adafruit Products Robotics & CNC Breakout Boards

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Beginner

Product guide

FAQ

Can this board be used for LEDs or just servos?

It can be used for LEDs as well as any other PWM-able device!

I am having strange problems when combining this shield with the Adafruit LED Matrix/7Seg Backpacks

The PCA9865 chip has an "All Call" address of 0x70. This is in addition to the configured address. Set the backpacks to address 0x71 or anything other than the default 0x70 to make the issue go away.

With LEDs, how come I cant get the LEDs to turn completely off?

If you want to turn the LEDs totally off use (in Arduino) setPWM(pin, 0, 4096); not setPWM(pin, 0, 4095);

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