Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

Upload the code to your ESP8266 using Arduino IDE. It connects automatically to your Wi-Fi using the provided SSID and password. You can check the connection status through the Serial Monitor.

The OLED display is used to show network information and confirmation of the commands. The switch setup would probably also work with other ESP8266 boards but Adafruit's Feather board is nice and easy ...

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.

Posted in Arduino Hacks, Hackaday Columns, Reviews Tagged adafruit, arduino, CE, ESP8266, espressif, fcc, huzzah, lua, lua interpreter, NodeMCU, wifi ← Hacklet 45 – Reverse Engineering Projects ...