Along with tweaking the ESP32 firmware, there is still a lot that can be done with the TCam-Mini, but it sure looks like a fun project to tinker with if one is into Leptons. For this he repurposed an old in-ear thermometer calibration device.
Recently has also begun to further characterize these Lepton sensors, in order to see whether their accuracy can be improved from the rated +/- 5-10 ☌. Being able to load the radiometric data directly into a desktop application for processing makes it a closer match to the professional thermal cameras which states that he’d like to get as close to in terms of features as possible.
Compared to the aforementioned FLIR One Pro, there’s a definite benefit in having a more portable unit that is not reliant on a smartphone and accompanying FLIR app. Not cheap, but quite a steal relative to e.g. The project is available on GitHub, as well as as a GroupGets crowd-funding campaign, where $50 gets one a TCam-Mini board, minus the $199 Lepton 3.5 sensor. Using the 160×120 pixel FLIR Lepton 3.5 thermal sensor, and combining it with a custom PCB and ESP32 module for wireless, he created a wireless thermal camera called the TCam-Mini along with accompanying software that can display the radiometric data. While the ultimate goal is to create a stand-alone solution, with its own screen, storage and processing, the TCam-Mini is an interesting platform. With how expensive thermal cameras are, why not build your own? This is the goal with which set out a while ago, covering the project in great detail.
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