MLX90614 Non – Contact Infrared Temperature (Thermometer) Module


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The MLX90614 Non – Contact Infrared Temperature (Thermometer) Module is an infrared thermometer module for non-contact temperature measurements. This sensor is perfect for creating a non-contact thermometer to monitor the temperature of a person or living body. You can find these sensors in some commercially used thermometer guns used in mall entrances and other vicinity. The module works with 3.3V-5V and has a working temperature range from -40 to +125 ℃. The module uses the i2c communication protocol so you can integrate it easily with your Arduino, Raspberry and other microcontoller projects and you can make your own body thermometer sensor.

Both the IR sensitive thermopile detector chip and the signal conditioning ASIC are integrated in the same TO-39 can Chip. This sensor comes with a breakout board with all of the components needed for operation and with headers pins ready to solder for breadboard prototyping. Integrated into the MLX90614 are a low noise amplifier, 17-bit ADC and powerful DSP unit thus achieving high accuracy and resolution of the thermometer.

Application Examples:

  • High precision non-contact temperature measurements
  • Thermal Comfort sensor for Mobile Air Conditioning control system
  • Temperature sensing element for residential, commercial and industrial building
  • Industrial temperature control of moving parts
  • Home appliances with temperature control
  • Healthcare
  • Livestock monitoring
  • Movement detection
  • Multiple zone temperature control – up to 127 sensors can be read via common 2 wires
  • Thermal relay / alert
  • Body temperature measurement
Features / Specifications
  • Distance measured: 50cm
  • Sensor temperature range: -40 to +125 °C
  • Object temperature range: -70 to + 380 °C
  • Ta and To range from 0 to +50 °C with an accuracy of 0.5 °C
  • Measurement resolution: up to 0.02 °C
  • D —- 3V medical application accuracy
  • C —- Temperature gradient compensation
  • I —– 3 ° FOV (angle)
  • Module model: GY-906-DCI
  • Use chip: MLX90614-DCI
  • Power supply: 3-5V (internal low voltage regulator)
  • Communication: Standard IIC communication protocol
  • Size: 11.5 x 16.5mm
  • Weight: 2g

Tutorials / Manuals / Documents


Demo Video, check for Part 1 and 2.

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