Controlling RGB LED using PWM principle

Arduino IDE

LED (generic)

Arduino UNO

Resistor 220 ohm

In this project we will learn how to control RGB using PWM and a Joystick.To make it a little bit "complex" we won't use an RGB moudle or Joystick moudle BUT - 3 diffrent LEDS as an RGB and 2 potentiometers (one for each axis) as a joystick. You can implement is as you wish :)Lets start:Color of the R G and B LED is controlled by an XY Joystick (two potentiometers and button).Position of the XY-Joysticks is evaluated every 250ms by using a timerThe system can work at two modes:Mode A:X-axis of the joystick controlled G color intensity by using PWMY-axis of the joystick controlled R color intensity by using PWMB color intensity is not changedIntensity of the R, G, B are graphically shown on the serial PlotterMode B:X-axis of the joystick controlled color intensity of all LEDs by using PWMY- axis of the joystick CHANGED R color intensity by using PWM G and B colorintensities are not changed Intensities of the R, G, B aregraphically shown on the serial Plotter.ModeA:In this plot we can see the graphs of LEDs intensity. The Red graph represent the blue LED, the yellow graphrepresent the red LED, and the blue graph represent the green LED.<figure><img src=https://projects.arduinocontent.cc/ebf63e3d-fb79-4a32-bb52-94b01751539f.png /><figcaption> </figcaption></figure>ModeB:In this plot we can see the graphs ofLEDs intensity.We switched from mode A to mode B by pushing the button in the beginning of themeasurement. TheRed graph represent the blue LED, the yellow graph represent the red LED, andthe blue graph represent the green LED.<figure><img src=https://projects.arduinocontent.cc/362310a5-8004-45f5-8c57-4b91fc114a32.png /><figcaption> </figcaption></figure><h3 >Block diagram:</h3><div id="gallery"><img id="gallery" src=https://projects.arduinocontent.cc/ad26fbae-e4cd-4be3-823c-1f85ad8d7de4.png /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/22c059fb-82ed-481c-a87f-fc7bbe2d4eec.PNG /><figcaption> </figcaption></div>

Controlling RGB LED using PWM principle

Color of the R G B LED is controlled by an XY Joystick (two potentiometers and button) Position evaluated every 250ms using a timer