[Brian] first reported a new $5 WiFi module back in August. Since then there have been an explosion of awesome projects utilizing ... the ESP8266 with an Arduino Mega2560.

Presumably, the core phone module will have regulatory acceptance ... Of course, we’ve seen GSM and cell phone shields for Arduino before. Difficult to imagine sticking those in a dog collar ...

there's a way to bring them to life with the help of Arduino Nano. A beginner-friendly Nano-powered hologram project is this holographic matrix clock. It uses a real-time clock (RTC) module to get ...