Temperature measuring problem

[LukeUSMC]

If the sensor is a Dallas OneWire/DS18B20 read this. May still be relevant. It is a timing issue and best answer is to check for bad temp returns and toss them. I also published a library that you can use to verify for a bad CRC which will help you verify the data before doing anything with it. Link in this thread.

DS18B20 Dallas Temperature readings jumping high at random intervals

I published a new lib for the WebIDE that has a sensorObj.crcCheck() that lets you easily check for CRC errors and throw away the results if sensorObjcrcCheck() == false;. This fixes the random high and low values (the lows stick around longer than the high ones which you’ll see if you run the example app). DS18B20 0.1.00 DSB18XX Lib on Particle Photon Or you can get it from my GitHub. ds18b20 lib on GitHub