Building an indoor positioning system requires technology beyond GPS. While GPS trackers excel outdoors, indoor positioning systems need Ultra-Wideband (UWB) technology to achieve centimetre-level ...
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, along ...
Pagers may have largely gone out of fashion in the age of the smartphone, but the T-LoRa Pager from LILYGO puts a modern spin on the class communications device. It’s a portable device with a 2.33 ...