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Components Required:

1. Arduino Uno – Buy

2. Linux PC/Windows PC (Tested with Windows 10, Ubuntu 14.04 LTS)

3. USB cable A to B – Buy

4. Breadboard 

5. 5 mm LED (your favourite colour)

6. 220 Ohms Resistor (colour code – Red, Red, Brown)

7. Jumper Wires

Way to go ->

1. Connect Arduino Uno to PC via the USB cable.

2. Write the ArduinoReceive.ino sketch in the Arduino IDE, and upload it.

ArduinoReceive.ino

3. Write the button.pde in the Processing IDE and run it.

button.pde

Button -> OFF

OFFButton

Button -> ON

ONButton

Hardware Connections ->

1. LED to Arduino Uno