The problem is probably caused by a spure signal that is inside of the environment that is causing some of the IC to FAIL and destroy.
The sensors are excited almost one by one by a neodimium magnet that runs over the sensor once every few seconds.Įverything is running in digital mode, so HIGH and LOW is all what I care about. The HALL sensors I use for this project are Murata AS-M15TAN and the output for these sensor is LOW when a magnetic field is applied to the sensor. The Arduino uses the SPI bus to poll the ICs. The HC165 are driven by an Arduino which is in charge to poll them at every program loop/cycle.Īccording to my measures taken with a digital scope the loop will last a few millisecond. I try to answer to all of you according to my knowledge.