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.

An ESP32-S2 runs the show, and can also stream FPV video from the same OV2640 camera used on the popular ESP32-cam modules.

If you want to build your own smart home tech, then this display from Elecrow is a fantastic way to get started.