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Rev 3 (bodge free!) boards

A project log for More accurate thermal imaging cameras

A pair of calibrated thermal imaging cameras with ambient correction based around the Tiny1C thermal imaging sensor.

dan-julioDan Julio 04/11/2025 at 01:442 Comments

So I had several bodge wires on the Rev 1 of the iCamCntrl board.  I spun it into Rev 2 that integrated the RTC and backup battery.  Unfortunately Rev 2 had an issue sensing one of the buttons!   Oops, I had a sneak current path.  So a quick spin to Rev 3 which works great.  I also changed to a different button that can poke through a 3D printed enclosure and moved the charge LED to under the USB connector.

At the same time I took the opportunity to include a header for the VL53L4CX TOF sensor so it could be both close to the Tiny1C and more easily aligned so it "sees" close to the center of the Tiny1C image.

I use a Qwiic cable to connect to the AHT20 sensor so it can be slightly removed from the camera board to more accurately sense ambient temperature.  Ideally in a case it would be isolated from the camera with air flow across it.

Discussions

Mike 2.0 wrote 08/10/2025 at 21:14 point

You sir, are a wizard! Excellent project!

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Dan Julio wrote 08/11/2025 at 13:41 point

Wow, thank you very much.

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