Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.

Arduino has shrunk the UNO R4 with the Arduino Nano R4 board equipped with the same 48 MHz Renesas RA4M1 32-bit Arm ...

This lesson uses ngrok to expose a port on your local computer. The URL is added to a GitHub webhook so the Arduino LCD can display information when actions happen in a respository (like starring the ...