These days, if you want to build something with modern chips and components, you probably want a custom PCB. It lets you ...

Upload the source code to the ESP32. Assemble the circuit on a general-purpose PCB. Fix all seven LEDs on the PCB, including ...

has shared with us his techniques for building circuits without a prototype or bread board. [David] managed to incorporate a Dual D flip-flop at the heart of the circuit, as well as an impressive ...