Hi, I've just updated the code and instructions for my homemade video magnifier and hope it's useful for someone out there. It uses a Raspberry Pi and Pi camera to magnify what's under the camera (in predefined scaling steps), supports colour inversion and can also read out text using Tesseract OCR and Pico TTS. The housing is up to you, with examples ranging from simply mounting the device on a lamp or a board up to 3d printed cases.I started this project years ago for my grandmother who needed a video magnifier due to her macular degeneration, and still come back to it from time to time. The new Raspberry Pi OS and v3 camera needed some extra work, so happy to share this update.
Please let me know if you end up building / using it or have any suggestions.