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.
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
This guide was first published on Jun 20, 2013. It was last updated on Jun 20, 2013.
This page (FAQ) was last updated on Sep 04, 2013.
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