You have to carefully look at [upir’s] Arduino thermal camera project because it intersperses pictures of what you expect an 8×8 sensor will produce with images produced by a much better camera.

Low-cost thermal camera built using Arduino 7:59 am August 11, 2023 By Julian Horsey In the realm of DIY electronics, the Arduino UNO has emerged as a versatile platform for a myriad of projects.

The code uses the Arduino IDE and libraries. It leverages off-the-shelf libraries for the display and the image sensor. The image sensor isn’t going to wow you.