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Using a Non-Contact, Long-Range MLX90614-DCI Temperature Sensor with Arduino

In this tutorial, we learn how to use the long-range infrared non-contact MLX90614ESF-DCI temperature sensor with medical accuracy to measure temperature from 20 cm up to 50 cm. This is the medical-accuracy version, which needs special code and power-supply dependency compensation, and we will use 3.3V power from the Arduino and read the voltage and compensate the temperature reading.