Overview
This is a 32×24 pixels, 110° field of view, IR array thermal imaging camera, communicating via I2C interface. It is compatible with 3.3V/5V operating voltage, supports host platforms such as Raspberry Pi/Arduino(ESP32)/STM32, etc.
By utilizing the MLX90640 far-infrared thermal sensor array, this module can detect the IR distribution of objects in the field of view, turn the data into surface temperature of the objects by calculation, and then generate thermal images. Due to the small form factor, it can be easily integrated into miscellaneous industrial or intelligent control applications.
Features
Adopts MLX90640 far-infrared thermal sensor array, 32×24 pixels
Communicating via I2C interface, configurable to fast mode (up to 1MHz data rate)
Noise Equivalent Temperature Difference (NETD) 0.1K RMS @1Hz refresh rate
Onboard voltage translator, compatible with 3.3V/5V operating voltage
Comes with development resources and manual (examples for Raspberry Pi/Arduino(ESP32)/STM32)
Specifications
Operating voltage: 3.3V/5V
Operating current:<23mA
Communication interface: I2C (address 0x33)
Field of view (Horizontal×Vertical):
MLX90640-D55 Thermal Camera: 55°×35° (narrow angle FOV, suit for long range measuring)
MLX90640-D110 Thermal Camera: 110°×75° (wide angle FOV, suit for short range measuring)
Operating temperature: -40℃~85℃
Target temperature: -40℃~300℃
Resolution: ±1℃
Refresh rate: 0.5Hz~64Hz (programmable)
Dimensions: 28mm×16 mm
Mounting hole size: 2.0mm
Applications
High precision non-contact temperature measurements
IR thermal imaging devices, IR thermometers
Smart home, intelligent building, intelligent lighting
Industrial temperature control, security monitoring, intrude/movement detection
Pinouts
In the case of working with MCU:
VCC ↔ 3.3V / 5V
GND ↔ GND
SDA ↔ MCU.I2C data line
SCL ↔ MCU.I2C clock line
Example
Generating IR thermal images of the Raspberry Pi:
Dimensions