Changing Serial3 to an I2C bus

[travisty (Travis)]

We need to reassign the Serial3 to be an I2C bus. I found this post.

Using Rasp 4 and Navigator, need an I2C output that I can use

Hello all, I have need for an I2C output from my raspberry pi 4 (with navigator) that I can use to control and read my own hardware. I don’t see in the documentation where there is an I2C bus output that is not being controlled by BlueOS. Did I miss something? Or is there no available I2C busses that I can take over? Thanks for the help, Mark Kozikowski

Can I get more details on how to use the Autopilot Parameters to disable serial3 in the autopilot parameters?

[MikeFair]

We want to uses pins 4 and 5 on the 40 pin header to communicate with a battery pack over i2c. Dmesg shows errors when we attempt to impose this configuration on the system using the overlay syntax in /boot/config.txt