As I have the original Navio I’ve found it useful to be able to access the spare GPIO pins, does the Navio+ allow easy access to the spare/unused pins?
Sure, you can access unused GPIOs as you would normally do on the RPi. GPIOs that are on DF13 connectors are not used by the APM.
I had a look at the Navio+ board and found the following spares:
- ADC2 and ADC3 on bottom of the board
- IO17 and IO18 on UART connector
- IO24 and IO25 on SPI connector
Is there any other one I missed? Is there any spare we could access directly on the 40-pins connector?