Hi everyone,
recently I have experienced problems on few BMP280 devices.
We were making long term tests on few of our devices and on some of them after few days BMP280 stopped responding on I2C i.e. does not give an ACK after it's address is being sent on bus. The sensors is being sampled every 15 minutes by switching it to forced mode every interval.
The sensor failed runtime so the voltage is constantly being held at the same level. I'm using latest BMP280 library from bosch sensortec github.
What I have already tried is firstly heat it up a bit to see if it's a cold solder joint problem - didn't help. Then tried to desolder it and resolder again on the same board - no luck. Swapped BMP280 sensor on two boards to verify if there's something wrong with specific board, but with no luck - failed sensor is still failing on new board and working sensor still works on previously failing device.
Could you help me with investigation of a possible cause of sensor failure ? Please let me know if you need any additional information.