We covered this procedure in our last parts post. The Bus Pirate’s address ... First, we read the potentiometer values at startup. [ issues the I2C start condition, 0x51 is the device read ...

Pot 0 is at full volume (0), pot 1 is muted (64). Like this post? Check out the parts posts you may have missed. Want to request a part post? Please leave your suggestions in the comments.