Datasheet

The only thing to watch for when stacking HATs is every HAT must have a unique I2C

address. The default address is 0x60. You can adjust the address of the motor HATs to

range from 0x60 to 0x80 for a total of 32 unique addresses.

Addressing the HATs

Each board in the stack must be assigned a unique address. This is done with the address

jumpers on the left side of the board. The I2C base address for each board is 0x60. The

binary address that you program with the address jumpers is added to the base I2C

address.

To program the address offset, use a drop of solder to bridge the corresponding address

jumper for each binary '1' in the address.

The bottom-most jumper is address bit #0, then the one above of that is address bit #1, etc

up to address bit #5

https://learn.adafruit.com/adafruit-dc-and-stepper-motor-hat-for-

raspberry-pi

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