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.

Setup is fairly simple with downloads for Linux, OS X, and Windows. This isn’t an ESP8266 shield, either: you can write code for the ESP module, connect the serial pins, and hit the program button.

Recently, we sat down with [Federico Musto], CEO of Arduino SRL, for a chat about how the Italian Arduino firm was doing, what new products and projects they’ve got in the hopper, and what th… ...