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.

Disconnect the Arduino Uno from the computer. Connect the ESP8266 module to a power source (e.g., USB charger or power bank). #Test the communication: Reconnect the Arduino Uno to the computer. Open ...

An Arduino shield with an ESP8266 module is a technological marvel that combines the versatility of an Arduino board with the powerful wireless capabilities of an ESP8266 module. The ESP8266 module is ...

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.