After a break with IoT and sensors, I've dusted off an RPi zero and a wide-angle 160 degree camera to start a new project, where I can take pictures directly over the top of the seed tray.

This is a cheap and easy project to set up and very satisfying. Try it out with some green beans, peas or a herb?

https://twitter.com/alexellisuk/status/1380227185894690823