Description M5Stack Thermal Camera Unit (MLX90640) is a compact infrared thermal imaging unit built around the MLX90640 thermopile sensor array. It captures a 32 x 24 pixel thermal image, helping visualize temperature distribution from object surfaces for embedded temperature-sensing projects. The Thermal Camera Unit communicates over I2C at address 0x33 and provides a wide 110° x 75° field of view, a -40°C to 300°C measurement range, ±1.5°C accuracy, and a programmable refresh rate from 0.5Hz to 64Hz. Two LEGO-compatible mounting holes make it easy to integrate into prototypes, test fixtures, smart home devices, security monitoring, and industrial diagnostic systems. Features MLX90640 infrared thermopile sensor array 32 x 24 pixel thermal imaging resolution with 768 temperature points 110° x 75° wide field of view -40°C to 300°C temperature measurement range ±1.5°C temperature accuracy 0.5Hz to 64Hz programmable refresh rate I2C communication interface at address 0x33 2 x LEGO-compatible mounting holes Development support for UiFlow2 and Arduino IDE Includes 1 x Unit Thermal 1 x HY2.0-4P Grove Cable (20cm) Applications High-precision non-contact thermometers Thermal vision and visualized infrared imaging Biological motion and presence detection Security monitoring and smart home sensing Industrial equipment temperature diagnostics Specifications Specification Parameter Communication Interface I2C @ 0x33 Operating Current 23mA Field of View 110° x 75° Temperature Range -40°C to 300°C Accuracy ±1.5°C Refresh Rate 0.5Hz to 64Hz Operating Temperature -40°C to 85°C Product Size 32.0 x 24.0 x 8.6mm Product Weight 5.1g Package Size 138.0 x 93.0 x 9.6mm Gross Weight 10.1g PinMap Port A Wire Black Red Yellow White Function GND 5V SDA SCL Learn and Documents Product documentation Schematic PDF MLX90640 datasheet Arduino example for M5Core Arduino example for M5Core2 UiFlow2 programming guide
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