In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie ... passwords to bother with. The DIY Walkie-Talkie circuit diagram.

Although DIY PCB making has made great strides since the early days of chemical etching, there’s one fly in the ointment: vias. These connect individual layers of the board with a conductive ...

It can function as a remote control, a Bluetooth gamepad, or even a smart automation device—all tailored to individual needs.