Bigger M1n testing board

The M1n is very nice for actually use in a product, but breadboarding/testing with it is very difficult. There are very few dev boards for connecting to the M.2 NGFF connector. It would be great if you could make an bigger board than the Maix Nano.

  • Missing the ISP UART pins is a real bummer, RTS CTS would also be great. I wouldn’t want to use different pin for UART connection in product, and without being able to upgrade firmware in a mockup is a pain
  • DVP I2C pins would enable adding more 1.8V sensors
  • IO12 IO32 are odd ones out
  • SPI0 would be great

The board is extremely tight for soldering. Just a bit more space would help.