I am currently building a quadcopter using Rpi3 + Navio 2 embedded in a waterproof frame.
The issue being that I expect my barometer not to work anymore as it will be completely isolated from ambient air pressure
Does anybody know how to connect an external baro to navio 2 board?
Hardware way:
a: Unsolder MS5611 chip from the Navio board.
b: Connect external MS5611 with address set to 0x77 (using address selection pins of the chip) to the I2C port on Navio.
Software way:
a. Change Ardupilot code by setting MS5611 address for Navio to 0x76 and compile it.
b. Connect external MS5611 with address set to 0x76 (using address selection pins of the chip) to the I2C port on Navio.
I assumed the wiring diagram to be respected on I2C port is described in the MS5611 documentation.
Now the question is for me on the procedure to change the Ardupilot code and compile it. Is there any documentation available on the topic?
I am very new to LINUX and programming.