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PCEval / esp32 /level1 /led_RGB_basic /description_esp.md
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LED RGB

Project Description

This is a simple ESP32 project that turns on an RGB LED.

Hardware Components

  • ESP32 DevKit v1
  • RGB LED
  • 220Ω resistor * 3

Circuit Description

The R, G, B pin of the RGB LED is connected to the pin5, pin4, pin2 pin of the ESP32 through a 220Ω current-limiting resistor. The common pin of the RGB LED is connected to 3V3.

Expected Behavior

When the ESP32 powers up, it should:

  1. Set pin5, pin4, pin2 pin mode to OUTPUT
  2. Considering that the LED's common pin is connected to 3V3, turn on only the blue segment at full brightness.

Success Criteria

The test is successful when:

  1. Only the blue light of the RGB LED is fully on.

Notes for Implementation

  • Use Arduino.h library for arduino core.
  • The LED should turn on immediately during setup and stay on
  • No actions are required in the loop function
  • The pin number used should match the circuit diagram

Variants

This project may have different variants with the RGB LED connected to different pins.

Attributes

  • To use 220Ω resistor, set the property name "value" to "220 ohm".