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

CrossRoads August 20, 2012, 7:47pm 2

Speed considerations. You will get much cleaner signals for higher speed operations with a level shifter chip and thus more reliable operation.

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