diy solar

diy solar

Free Open Source Thermal Imaging Software


New Member
May 24, 2022
I don't know if this is the most appropriate forum for this. Feel free to move to the more appropriate forum if needed.

FWIW, there has been a rash of ChiCom thermal cameras flooding the market that all appear to use the same core. Vendors use different color/shaped housings (possibly a different lens) and then sell them under different brand names and prices.

The camera runs at 25FPS and has a resolution of 2 sub-frames @ 256x192 pixels each. Software scaling with interpolation is provided by the application to give a more readable image. The images below are using 4X, 6X, 5X and 4X scale respectively.

Here is the free Open Source software app that provides much more functionality over that of the OEM supplied software. It runs on Linux, preferably Debian variants and recent RaspPi distros. It requires NO privileges unlike the OEM smart phone apps and the source is free to inspect/modify as desired to verify there is no nefarious code.

Thermal Camera Redux

I am using it with a Topdon TC001 (made for Android devices that I bought on sale) on various electronics projects and home thermal audits to find problem areas.

It maybe helpful to identify/fix/document issues with solar installations, service panels etc.

The github link gives a list of features including an offline post processing mode which allows you to analyze thermal snapshots on a PC with a larger display using any of the applications filters, colormaps, interpolation, etc. as if you were on the job site recreating the same thermal conditions at the time of the audit.

It has found many issues in my house and I wish I had it before I bought any property. Using the proper filters, it can see framing behind drywall, nail and screw heads under plaster, HVAC leaks in walls and ceilings, etc.

It has user selectable temp locations, scrolling horizontal and vertical plotting rulers (horizontal ruler displayed in the picts).

Each frame contains just under 50,000 discrete temps (256x192). Horizontal rulers plot 256 temps and vertical rulers plot 192 temps in landscape mode. Swap those for portrait mode. It provides much more information than an IR temperature gun. I was able to use it to adjust the fan-out of my supply registers to get a more even air supply distribution within my rooms. Couldn't do that with an IR gun, or not very efficiently.

Hopefully, this can be of some help to someone to verify the condition of their solar installs. Can't beat it for the price. :)


Before / After insulation repair resulting in 5 degree cooler temps:

Upstairs Attic Foil 1.png
Upstairs Attic Foil 5 2_30pm with insulation.png

Example of User Defined temp locations so you can tell when your coffee is getting too cold:

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diy solar

diy solar