@ajb2k3 The api docs are far from complete.

The AXP192 doc includes only four functions. I would like to know the full function of the I2C interface, also why the AXP is concerned with things like TFT backlight brightness and pushbuttons? Shouldn't those be in other objects?

Is there any documentation of the I2C memory mapping and usage for the ASP192?

I have found a reference in Axp.GetBtnPress() that writes to 0x46. What is at this address (or any address for that matter)?

What button is associated with the AXP192?

Hs anybody gotten Button B to work? I believe it's on GPIO39, but when I enable this pin for input I never get a reading from it. Button A works as expected.