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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
Compact I2C IR camera with 16×12 pixels, 55° FOV and programmable frame rate; for non-contact temperature measurement in industrial and smart-control applications.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL20465 WSAL20465 – MLX90641 IR Array Thermal Imaging Camera, 16×12 Pixels, 55° FOV, I2C]<br />
<br />
== Technical overview ==<br />
* Resolution: 16 × 12 pixels (768 IR sensors total)<br />
* Interface: I2C, high-speed mode up to 1 MHz, default address 0x33<br />
* Operating voltage: 3.3 V / 5 V; current draw ≈ 12 mA<br />
* Field of view: 55° horizontal, 35° vertical<br />
* Operating temperature: -40 °C to 125 °C; target temperature range: -40 °C to 300 °C<br />
* Accuracy: ±2 °C at ambient 0–50 °C<br />
* Frame rate: 0.5 Hz to 64 Hz, configurable via control register 0x800D<br />
* Dimensions: 28 mm × 16 mm, mounting hole 2.0 mm<br />
* Reading patterns: chess pattern (factory default) or TV interleave<br />
* Measurement principle: weighted average of object temperature within FOV; object should be fully inside the field of view<br />
<br />
'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo raspi-config<br />
cd ~<br />
wget https://files.waveshare.com/upload/d/d9/Mlx90641-D55_Thermal_Camera_Code.zip<br />
unzip Mlx90641-D55_Thermal_Camera_Code.zip<br />
cd Mlx90641-D55_Thermal_Camera_Code/raspberrypi/cpp/<br />
chmod +x install.sh<br />
sudo ./install.sh<br />
make<br />
sudo ./main<br />
sudo nano /boot/config.txt<br />
dtparam=i2c1_baudrate=1000000<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* The source contains conflicting resolution data: the title states 32×24, while the body text says 16×12 pixels. Product metadata confirms 16×12 – please verify before publishing.<br />
* Up to four bad pixels may occur; they are marked in the EEPROM and are stated not to be covered by warranty. Recommendation: average neighboring pixel values.<br />
* When using on Raspberry Pi: avoid static discharge, check power polarity, do not unplug cables during operation and avoid strong vibration (EEPROM can be damaged).<br />
* The listed commands refer to a specific Waveshare firmware/code version; compatibility with other MCU platforms (STM32, ESP32) is only described as a wiring diagram in the source, without executable commands.<br />
* The FAQ section mistakenly mentions MLX90640 instead of MLX90641 – possible typo in the source; detection distance (detectable at ~1 m, contour lost at 5 m) applies only under the stated test conditions (room temp 26 °C, dim light).<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/MLX90641-D55_Thermal_Camera MLX90641-D55 Thermal Camera - Waveshare Wiki]<br />
* Source revision: 68954<br />
* Captured: 2026-09-02T03:51:36+00:00<br />
* SHA-256: <code>562b9e09d96e60c726b4a71732d76ff317071ce867170829067a8b09e5849fca</code></div>JWTechPublisher