Take the ESP32-CAM, a board that started appearing on the market in early 2019. On paper, the thing is amazing: an ESP32 with support for a camera and an SD card, all for less than $10.

This ESP32-CAM surveillance bot is a great example of what was once hard becoming trivially easy. It’s a case of standing on the shoulders of giants.

If you love these little bots but want something a little more useful around the house, check out the time someone made an ESP32-powered lawnmower they could control remotely.