It won’t work if you use a mobile VPN and has trouble with some open Wi-Fi networks — but it’s otherwise the best option available. The Talker PTT Walkie Talkie app turns smartphones and ...

You can even turn the humble handheld device into a working walkie talkie. The build relies on adding a SA868 transceiver module to the ESPBoy, along with a microphone, speaker, audio amplifier ...

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 ...

Once you’ve added a contact through the Walkie-Talkie app, you can simply press a button to start chatting—no phone calls required. You don’t need to be close by for it to work, as long as ...