Had a quick question/observation. The MangOH uses 1.8V on all its GPIO and communication pins but, the breakout boards really only makes 3.3V available. While pin #11 does provide 1.8V it’s labeled as a reference voltage. It would be nice if the MangOH used the commonly found 3.3V, provided onboard level shifters or if more 1.8V breakout was available.
This is just my thought on making the board easier to use with other products and boards.