Hi, I'm a student at Azores, Portugal, participating in the CanSat competition, and I'm trying to connect a Pololu LSM303D Accelerometer and Compass to your pro micro board, and I am not being capable of it. It works perfectly on a Arduino Uno board, but it uses the analog ports 4 and 5, set by the library. There are not any analog ports 4 and 5 on the board im trying to connect. I've seen in some posts that the accelerometer connects using I2C ports, SDA and SCL, but they are already on use.
how can i do it? change ports, change the library, i don't know how to perform it.
PS: this is the code i'm using: Heading, in examples. The library is the LSM303.