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.

We'll break down the major differences between all of them, as there's a lot to know if you're looking to invest in one of these to ensure you make the right choice. What is an ESP32? What ...

They may seem simpler, but don't be fooled: microcontrollers are perfect for a lot of my more complicated setups for a number of reasons ...