WS2812-24 RGB LED Ring Lamp Light Wiki - DFRobot

Introduction

Shine like rainbows, this full-color RGB LED Ring with an exquisite and cool appearance could be a great partner for your interactive applications. Add it to your project to brighten your creativity! Combining with sensors, it could turn into a compass that tells direction, a cool clock, a tomato timer, a countdown timer… It could also be a turntable lottery machine used in games, colorful decoration for robots, etc. Come and unlock more fun ways to play with this colorful RGB LED ring by cascading it.

Specification

Dimension

Pinout

RGB LED ring pinout diagram:

Num Label Description
1 D Digital signal port
2 + VCC
3 - GND

Note: For the silkscreen of the port, IN and OUT represents input and output terminals respectively.

1. Mind+ Programming

User Guide

The extension library of the RGB LED command needs to be added before using the RGB LED ring. Open Mind+ platform, click "Extensions" in the bottom right corner, and in the "MCU" menu bar, select "micro:bit", the MCU to be used. Then find "WS2812 RGB LED" in the "Display" menu bar and click it to add the RGB LED extension library, then the display module will appear in the command area.

Application Sample (RGB LED Ring - 12)

Project 1: Dazzling Neon Light

Project Introduction
Display color gradients of the 12 LED beads. The color of the lamp bead changes by one level successively around the circle to form a rotating effect as if it’s a dynamic rainbow.

Hardware Preparation

Hardware Connection
Program Screenshot

Project 2: LED Ring Cascade

Method to cascade LED ring
It’s easy to cascade the LED ring. Just connect the OUT port of the first lamp ring to the IN port of the second lamp ring through the PH2.0-3P male-to-male cable.

Note: When using the cascaded lamp ring, the power supply may be unstable due to excessive beads, which can be resolved by using a 5V or external power supply.

Product Introdution

To achieve a dazzling neon light effect similar to project 1 by cascading three types of LED rings.

Hardware Preparation

Program Screenshot

Project 3: LED Ring Clock

Product Introduction
Clocks serve as timers in our daily routine. The most general clocks are electronic and quartz clocks. Let’s use the LED ring module to design a unique clock.

Hardware preparation

Hardware Connection

Program Screenshot

Application Sample (RGB LED Ring- 24)

Project 4: LED Ring Compass

Project Introduction
The compass is designed to tell the direction, and nowadays smartphones commonly are equipped with a compass software to help us determine the North Pole based on the geomagnetic field. Let's do a compass project using RGB LED ring with micro:bit, thus explore the connection between it and us.

Hardware Preparation

Hardware Connection

Program Screenshot

Project 5: Rainbow Breathing LED Ring

Project Introduction

The breathing light is the light controlled to gradually change from bright to dark and then from dark to bright, which feels like breathing at a certain tempo. We will employ the RGB LED ring to make a rainbow breathing ring feasting your eyes.

Hardware Preparation

Hardware connection

Program Screenshot

2. Makecode Programming

User Guide

Click the extensions in MakeCode and add the lamp strip library into the extensions.

Project 1: RGB Palette

Project Introduction

We are all familiar with RGB and know that mixing blue with green will turn into yellow. RGB color model is based on the principle of getting 16 million different colors by mixing three colors. Let the RGB ring serve as our color palette and mix the color that satisfies us the most.

Hardware Preparation

Hardware Connection

Program Screenshot

Project 2: Tomato Timer

Project Introduction

Pomodoro Technique is a easy way to manage your time. The time can be set to 25 minutes, during which you focus on one thing until the clock goes off, and then take a five-minute break. This is actually a 25-minute timer. Press button A: the buzzer turns off and stops the timer.

Hardware Preparation

Hardware Connection

Program Screenshot

3. Arduino Programming

User Guide

(1) Import the library file of RGB LED into Arduino library first, find the installation location of Arduino, and put the file of RGB LED ring into the libraries of Arduino.

DFRobot_NeoPixel.zip

(2) Before using the RGB LED ring, enter Arduino and click "Toolbar- Development Board" (as shown in the picture)

Project 1: LED Brightness Adjustment

Project Introduction

The brightness of the RGB LED ring can be adjusted from 0 to 255. Let's employ the analog rotation sensor to adjust the brightness in the way of mapping the analog value of the sensor into the brightness of the RGB LED ring.

Hardware Preparation

Hardware Connection

Sample Code

/*!
 * @file        RGB ring.ino
 * @brief       The colors of the 12 lamp beads are displayed in gradients. Adjust the brightness of the RGB LED ring using the analog rotation sensor.
 * @copyright   Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @licence     The MIT License (MIT)
 * @author      [qsjhyy](fengying.nie@dfrobot.com)
 * @version     V0.1
 * @date        2021-09-24
 * @get from    https://www.dfrobot.com
 * @url         
 */

#include <DFRobot_NeoPixel.h>

// Dynamic variable
volatile float brightness;
// Create an Object
DFRobot_NeoPixel neoPixel_2;


// Main program start
void setup() {
  neoPixel_2.begin(2, 24);
  brightness = 0;
}
void loop() {
  neoPixel_2.setBrightness((map(brightness, 0, 749, 0, 255)));
  neoPixel_2.showRainbow(0, 23, 1, 360);
  brightness = analogRead(A0);
}

Project 2: Dazzling Neon Light

Project Introduction

The colors of the 24 lamp beads are displayed in gradients and change by levels successively around the circle every 0.1s to form a rotating effect as if it’s a dynamic rainbow.

Hardware Preparation

Hardware Connection

Sample Code

/*!
 * @file        RGB ring.ino
 * @brief       The colors of the 24 lamp beads are displayed in gradients and change by levels successively around the circle to form a rotating effect as if it's a dynamic rainbow.
 * @copyright   Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @licence     The MIT License (MIT)
 * @author      [qsjhyy](fengying.nie@dfrobot.com)
 * @version     V0.1
 * @date        2021-09-24
 * @get from    https://www.dfrobot.com
 * @url         
 */
#include <DFRobot_NeoPixel.h>
// Create a object
DFRobot_NeoPixel neoPixel_2;


// Main program start
void setup() {
  neoPixel_2.begin(2, 24);
  neoPixel_2.showRainbow(0, 24, 1, 360);
}
void loop() {
  delay(10);
  neoPixel_2.rotate(1);
}

FAQ

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