Write the firmware containing the BMM150 magnetometer function into the flash. This function requires the BHI260AP external SPI Flash. If there is no Flash, it can ...
SDA (Serial Data) -> A4 on Uno/Pro-Mini, 20 on Mega2560/Due, 2 Leonardo/Pro-Micro SCK (Serial Clock) -> A5 on Uno/Pro-Mini, 21 on Mega2560/Due, 3 Leonardo/Pro-Micro ...