https://devzone.nordicsemi.com/f/nordic-q-a/128828/nrf9151-dk-no-i2c-devices-ack-on-i2c2-arduino-qwiic-header-reproduced-on-two-unitsI2C on i2c2 (the Arduino header, arduino_i2c , P0.30 SDA / P0.31 SCL) is completely non-functional on two separate, brand-new nRF9151 DK (PCA10171) units. A raw bus scan finds zero devices at any address, regardless of what is connected, including nothingen-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT