The caveat is that you need a proper AVR programmer to access ... load – flash the binary onto the chip (doesn’t work for me with the STM32F0Discovery board) monitor – send special commands ...

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.

A bare chip that is mounted directly onto the printed circuit board (PCB). After the wires are attached, a glob of epoxy or plastic is used to cover the chip and its connections. The tape ...