uArm Metal Control Board Pinouts

Hi. I’m looking for a detailed graphic labelling all the pinouts on the uArm Metal Control Board.


Try this link. See bottom of page for external pinouts.

Thanks. I don’t see pinouts for A4 / A5, but for A6 / A7 (?) Is this a typo?

I’m hoping to be able to hook a second Arduino board via SDA (A4) / SCL (A5)

Ah, I see. Yeah, I’ve been looking for the same thing and am currently thinking that there are no user pins available on the AIO board. I could be wrong.

Have you considered connection the second Arduino via the serial port? I have not done that with uArm, but it is quite common and not hard to do. (Read up though, on how to handle the power & ground pins.)