In many of the articles on how to interface the max31855 chip with the Arduino, it recommends using a level shifter to get the right voltage. I created a voltage divider with series 10K and 22K resistors between the Arduino input pins and ground and pulled the signal off at the junction. This seem…

voltage divider with max31855 vs level shifter

RPCoyle August 20, 2012, 10:23pm 3

Thanks CrossRoads. I am sampling with a 20 ms delay . I have not trapped any anomalous reading in a five hour run so this will probably be OK.

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