Then, an Arduino board might be exactly ... is for grounding your circuit. The VRTC pin is meant to be a power pin for the R4 WiFi's onboard Real Time Clock (RTC). While the main supply can ...

A lot of people have used ESP8266 to add inexpensive WiFi connectivity to their projects, but [Oscar] decided to take it one step further and program an Arduino over WiFi with the ESP8266.

We're always fans of a good Arduino project. While a few Wi-Fi solutions have existed to connect your Arduino to the internet wirelessly, the release of the new Arduino Wi-Fi shield makes those ...