Arduino RGB LED - GUI control

This project allows you to control an RGB - LED connected to an Arduino UNO from your PC or notebook via a color selector GUI built with the amazing PySimpleGUI.

It has been tested sucessfully with following setup:

• Windows 10 x64

• Python 3

• Arduino IDE 1.8.9

• Arduino UNO (other Arduino boards work as well with some modifications depending on the model)

Prerequisites for the Python GUI:

• Python3 installed

• Python package management system up to date (python -m pip install --upgrade pip)

• Install the following python modules by opening a command line window and type:

  pip install pyserial
  pip install pysimpleguiqt
  pip install PySide2
  

Prerequisites for the Arduino part of the project

• Arduino IDE installed

• Flash the rgb_control.ino file to the Arduino Uno

• Connect the Arduino via USB to your PC or notebook

Pinout

Required hardware components:

  3x Resistor 220 Ohm
  RGB LED (common cathode - type)
  Arduino UNO

The RGB LED should be connected to the Arduino UNO as follows:

  LED pin for red connected to Arduino pin 9
  LED pin for green connected to Arduino pin 10
  LED pin for blue connected to Arduino pin 11
  LED ground pin to Arduino GND pin       

Click to enlarge:

Start the Python GUI

• Run the rgb_control_gui.py Python file by typing the following line in a command line window:

  python rgb_control_gui.py
  

  The GUI will start

• The COM port your Arduino is connected to should be detected automatically - if this fails you can enter the COM port manually. A list of available hardware serial ports will show up in a popup window.

• Click the buttons in the GUI. The color of the RGB LED should change accordingly.