Hi! I always appreciate the help of this community. I’m trying to use the I2C for barometers (MS5611 and BMP280). First, I set the I2C1 with MS5611 and it worked well. [image] But, if I change to I2C2, it does not work. (no device on bus 2) [image] I changed the pin configuration for my board…

I2C configuration for barometer

DoEon_Lee September 14, 2017, 12:49am 2

The MS5611 problem was solved.
I changed some variables. (I2C configuration in defconfig, PX4_I2C_BUS_EXPANSION and so on)
But the other problems have not been solved yet.

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I2C configuration for barometer

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