I made a couple of battery powered CR2032, TV and monitor test donges, using an MSP430 microcontroller. These dongles plug into either a VGA port or the RGB or Component plugs and allow you to test the TV or monitor without having to bring with you bulky test gear.
- TV Test Dongle
- VGA Monitor Test Dongle
I intend to use this to test TVs and monitors when I go thrift hunting.
I’ll put up a page with more information soon. While these are already usable, they wont be released for a while longer due to some minor design issues that have to be dealt with.