Boardoza MLX90640 Thermal Camera Breakout Board

The Boardoza MLX90640 Breakout Board is a compact and high-performance thermal imaging sensor board built around the Melexis MLX90640 far-infrared sensor array. Featuring a 32x24 pixel thermal resolution, this breakout board delivers 768 independent temperature measurement points for accurate non-contact thermal analysis and heat mapping applications.

Designed for compatibility with both 3.3V and 5V systems, the board communicates through a high-speed I²C interface and supports refresh rates up to 64Hz. With its wide temperature sensing range and integrated thermal array, the MLX90640 is ideal for applications such as industrial monitoring, predictive maintenance, occupancy detection, smart home systems, thermal visualization, robotics, and embedded sensing solutions.

Front Side	Back Side

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Key Features

• 32x24 Thermal Imaging Array: Captures 768 individual infrared temperature points for detailed thermal analysis.
• Wide Temperature Measurement Range: Measures object temperatures from -40°C to +300°C without physical contact.
• Integrated Thermal Camera Functionality: Enables compact thermal vision applications without requiring external optics.
• Fast Refresh Rates: Adjustable frame rates from 0.5Hz to 64Hz for dynamic thermal monitoring.
• Wide Compatibility: Supports both 3.3V and 5V logic systems for easy integration with popular development boards.
• I²C Communication: Supports I²C speeds up to 1MHz for responsive thermal data transfer.
• Wide Field of View: Provides a 55° horizontal (X-axis) and 35° vertical (Y-axis) viewing angle for broader thermal coverage.

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Technical Specifications

Model: MLX90640
Manufacturer: Boardoza
Manufacturer IC: Melexis
Functions: Far-Infrared Thermal Imaging Sensor Array
Sensor Resolution: 32 x 24 Pixels (768 Pixels Total)
Measurement Range: -40°C to +300°C
Field of View (FoV): 55° (X-axis) × 35° (Y-axis)
Interface: I²C
I²C Clock Speed: Up to 1 MHz
Refresh Rate: 0.5Hz to 64Hz
Supply Voltage (VCC): 3.3V to 5.5V DC
Logic Voltage Level: 3.3V / 5V Compatible
Typical Current Consumption: Less than 25mA
Operating Temperature: -40°C to +85°C
Board Dimensions: 20mm x 20mm

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Board Pinout

( J1 ) I²C Connector

Pin Number	Pin Name	Description
1	VCC	Voltage Supply Input
2	SCL	I2C Serial Clock
3	SDA	I2C Serial Data
4	GND	Ground

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Board Dimensions

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Step Files

Boardoza MLX90640.step

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Datasheet

MLX90640 Datasheet.pdf
TLV73333PDBVR Datasheet.pdf
TXS0102DCU Datasheet.pdf

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Version History

• V1.0.0 - Initial Release

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Support

• If you have any questions or need support, please contact [email protected]

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License

This repository contains both hardware and software components:

Hardware Design

All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.

Software/Firmware

All software and firmware are licensed under BSD 3-Clause License.