Lets you turn an LED on or off with your phone. Utilizes an ESP-01 WiFi module in serial communication with an Arduino Nano.
Power it up, connect to ESP WiFi network (password is password), open its panel.
The WifiAccessPoint and SerialBlink sketches are loaded on the ESP and Arduino, respectively.
Badly drawn schematic:
Made at the prompting of my engineering teacher as part of a class research project.