In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units ...

The headline feature is the phone's ability to function as a walkie-talkie, supporting both mobile radio and DMR modes with ...

You can even turn the humble handheld device into a working walkie talkie. The build relies on ... but the video shows it operating in the UHF band around 433 MHz. With a power on the order ...

Devices such as citizens’ band (CB) radios, walkie-talkies, and handie-talkies are two-way radios that can be used for interpersonal ... and circuitry to reduce radio frequency (RF) gain. UHF radios ...