Big news today. I pushed the design and code for tCam mini to the github repository (new section: ESP32).
I've also been busy putting the finishing touches on the companion desktop application and binaries for it are also available. Lots of bug fixes and three useful new features.
- Support for video files comprised of multiple radiometric images from the camera. The tCam stream function can now stream at different rates enabling time lapse thermography.
- Radiometric markers to monitor temperature in more than one location in a scene.
- Graphing of the spotmeter and radiometric markers over time.
The menu bar on the main window also got a slight layout change so it looks better on Linux (the app runs on OS X, Windows and Linux).
Graphs can be made from real-time streaming data coming from a camera or they can be made from a video file. In this case from the file "pi0_5sec_heading.tmjsn" that was created from a streaming session with an image every 5 seconds of a Pi 0 mounted on my Pi Platter heating up and then cooling down.
Finally I added a U.FL connector to my prototype board and tested with an external antenna. It provides better performance (higher streaming rates). I can now get between 6-7 frame-per-second which may be near the limit of the ESP32 WiFi/network stack.