Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller connected to a WS2812 RGB LED strip. The Arduino UNO provides power and control signals to the LED strip, allowing for the control of individual LEDs on the strip.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

WS2812 RGB LED strip

• Description: An addressable RGB LED strip.
• Pins: DIN, 5V, GND, DO

Wiring Details

Arduino UNO

• 5V: Connected to the 5V pin of the WS2812 RGB LED strip.
• GND: Connected to the GND pin of the WS2812 RGB LED strip.
• D8: Connected to the DIN pin of the WS2812 RGB LED strip.

WS2812 RGB LED strip

• 5V: Connected to the 5V pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.
• DIN: Connected to the D8 pin of the Arduino UNO.

Code Documentation

Arduino UNO Code

#include <Arduino.h>
#include <FastLED.h>

#define PIN 8
#define PIXELCOUNT 5

CRGB leds[PIXELCOUNT];  // Define the array of LEDs

void setup() {
  FastLED.addLeds<WS2811, PIN, RGB>(leds, PIXELCOUNT);
  delay(2000);  // Wait two seconds
  leds[0].setRGB(255, 0, 0);  // Color the first LED in red
  leds[1].setRGB(0, 255, 0);  // Color the second LED in green
  leds[2].setRGB(255, 0, 0);  // Color the third LED in red
  FastLED.show();  // Send the new color settings to the strip
}

void loop() {}

This code initializes the FastLED library to control the WS2812 RGB LED strip. It sets up the LED strip on pin 8 of the Arduino UNO and defines an array of 5 LEDs. In the setup function, it initializes the LED strip, waits for 2 seconds, and then sets the colors of the first three LEDs. The loop function is empty as no continuous operation is required.