Generic GY-906 MLX90614ESF DCI Non-Contact Infrared Temperature Sensor Module

The MLX90614ESF sensor on the GY-906 module typically operates from 3.0V to 3.6V. It is crucial to stay within this range to ensure accurate analog-to-digital conversion and prevent damage to the internal thermopile and DSP circuitry. The breakout board includes necessary regulation and pull-up resistors for the I2C lines.

Connect the module's VCC (3.3V), GND, SDA, and SCL pins to the corresponding pins on your Arduino. Use the I2C bus; the sensor has a default address of 0x5A. Utilize libraries such as Adafruit_MLX90614 or Melexis_MLX90614 to read the object (TA) and ambient (TOBJ) temperature registers easily via the Wire library.

A 5-degree field of view (FOV) means the sensor measures the average infrared radiation from all objects within a very narrow cone. This allows for precise targeting of small areas or objects from a distance, minimizing background temperature interference. The measured value represents the spatial average temperature of everything within that cone.

Yes, the MLX90614ESF-DCI is factory calibrated across a wide temperature range. In its medical-grade calibration range, it achieves a high accuracy of ±0.2°C. The calibration data is stored in the sensor's internal EEPROM, and the integrated DSP performs all necessary calculations, providing a ready-to-use digital temperature value.

Yes, the MLX90614ESF-DCI version is suitable for non-contact body temperature measurement applications due to its high accuracy in the relevant temperature range. However, for clinical use, proper implementation considering distance-to-spot ratio (influenced by the 5° FOV), environmental compensation, and regulatory approvals is necessary.