This project demonstrates how to control a set of 5 LEDs connected to a Raspberry Pi Pico. The LEDs respond to two buttons, with functionality for toggling ON/OFF states, adjusting brightness with a potentiometer, and a special mode when both buttons are pressed simultaneously.
- One Button (
BTN_ON): Toggles LEDs to blink alternately (one on, one off). - Second Button (
BTN_OFF): Turns off all LEDs. - Both Buttons Together: Lights up all LEDs at full brightness.
- Adjustable Brightness: Use a potentiometer to control LED brightness dynamically.
- 1x Raspberry Pi Pico
- 5x LEDs (Yellow, Green, Blue, Magenta, Cyan)
- 5x 220Ω resistors
- 1x Potentiometer
- 2x Push Buttons
- Breadboard and jumper wires
The circuit is designed using Wokwi. Check the diagram.json file in the repository for an exact simulation layout.
- Connect the components as per the
diagram.jsonfile. - Flash the
main.pycode onto your Raspberry Pi Pico using MicroPython or Thonny IDE. - Use the buttons to interact with the LEDs:
- Press the
BTN_ONbutton to toggle the blinking state. - Press the
BTN_OFFbutton to turn off all LEDs. - Press both buttons together to turn all LEDs on at full brightness.
- Press the
- Adjust the potentiometer to modify the brightness of the LEDs.
The code uses MicroPython's machine module to:
- Control the LEDs with PWM signals.
- Read button states and a potentiometer value.
- Create blinking patterns and brightness adjustments dynamically.
- PWM Control: Adjust the brightness of LEDs using duty cycles.
- Button Debouncing: Smooth handling of button states to avoid glitches.
- Blinking Logic: Alternate LEDs blinking with a delay.
This project was designed and tested using the Wokwi Simulator. The circuit JSON is included in the repository for easy import and simulation.
This project is licensed under the MIT License. See the LICENSE file for details.
Copyright (c) 2025 Max Base