Introduction
This WS2812B ring lamp is composed of 93 lamp beads in 6 circles. The 6 rings in the lamp panel can be controlled individually, and cascade control is supported for each ring. You can join all rings together by connecting the DI of the second circle to the DO position of the first circle, and so on. Each LED is an individual pixel point that consists of three primary colors: red, green and blue. It is able to achieve 256 levels of brightness display and 16777216 full color display, and the scanning frequency is no less than 400Hz/s.
Specification
- Operating Voltage: 5V
- LED Type: WS2812B
- LED Quantity: 93
- Light Source: SMD 5050 RGB
- Grey Level: 256
- LED Beam Angle: 180 degrees
- Color: full color RGB
Board Overview
You can join all rings together by connecting the DI of the second circle to the DO position of the first circle, and so on.
Tutorial
Requirements
- Hardware
- DFRduino UNO R3 (or similar) x1
- WS2812B Ring lamp x1
- Wires
- Software
- Arduino IDE
- Download and install the FastLED Library (About how to install the library?)
Connection Diagram
Sample Code - Flowing Water Lighting Effect 1
#include <FastLED.h>
#define LED_PIN 6
#define NUM_LEDS 93
CRGB leds[NUM_LEDS];
void setup() {
FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
}
void loop() {
for (int i = 0; i <= 93; i++) {
leds[i] = CRGB ( 0, 0, 255);
FastLED.show();
delay(40);
}
for (int i = 0; i <= 93; i++) {
leds[i] = CRGB ( 255, 0, 0);
FastLED.show();
delay(40);
}
for (int i = 0; i <= 93; i++) {
leds[i] = CRGB ( 0, 255, 0);
FastLED.show();
delay(40);
}
}Sample Code - Flowing Water Lighting Effect 2
Click to download Arduino Library File.
#include <Adafruit_NeoPixel.h> //needed for the WS2812
#include <avr/pgmspace.h> //needed for PROGMEM
#define PIN 6 //Pin 1 is DATA In on the bottom Ring
#define BRIGHTNESS 93 // brightness reduced
//Lookup for the Candle light
const unsigned int candles[] PROGMEM =
{
15, 10, 48, 45, 36, 19, 59, 29, 5, 43, 41, 39, 24, 3, 61
};
Adafruit_NeoPixel strip = Adafruit_NeoPixel(93, PIN, NEO_GRB + NEO_KHZ800);
// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input
// and minimize distance between Arduino and first pixel. Avoid connecting
// on a live circuit...if you must, connect GND first.
void setup() {
pinMode(PIN, OUTPUT);
strip.begin();
strip.setBrightness(BRIGHTNESS); // set brightness
strip.show(); // Initialize all pixels to 'off'
}
void loop() {
tree();
delay(1000);
colorcrazy();
theaterChaseRainbow(50);
comet();
warpdrive();
warpdrive();
rainbowCycle(1);
rainbow(5);
rainbow(5);
rainbow(5);
colorWipe(strip.Color(255, 0, 0), 50); // Red
colorWipe(strip.Color(0, 255, 0), 50); // Green
colorWipe(strip.Color(0, 0, 255), 50); // Blue
//
//
// cometr();
//Tree light:
//
// warpdrive();
//
//
// comet();
/*
// Some example procedures showing how to display to the pixels:
colorWipe(strip.Color(255, 0, 0), 50); // Red
colorWipe(strip.Color(0, 255, 0), 50); // Green
colorWipe(strip.Color(0, 0, 255), 50); // Blue
// Send a theater pixel chase in...
theaterChase(strip.Color(127, 127, 127), 50); // White
theaterChase(strip.Color(127, 0, 0), 50); // Red
theaterChase(strip.Color( 0, 0, 127), 50); // Blue
rainbow(20);
rainbowCycle(20);
theaterChaseRainbow(50);
*/
}
//Sub-----------------------------------------------------------------------
//Comet
void comet() {
for (uint16_t i = strip.numPixels(); i > 0; i--) {
strip.setPixelColor(i, strip.Color(0, 0, 255));
fadethemall(10);
fadethemall(10);
}
}
void cometr() {
for (uint16_t i = strip.numPixels(); i > 0; i--) {
strip.setPixelColor(i, strip.Color(255, 0, 0));
fadethemall(10);
fadethemall(10);
}
}
//From top down white pulses
void warpdrive() {
//Top Led
strip.setPixelColor(60, strip.Color(255, 255, 255));
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
//8 Ring
for (int i = 52; i < 60; i++)
{
strip.setPixelColor(i, strip.Color(255, 255, 255));
}
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
//12 Ring
for (int i = 40; i < 52; i++)
{
strip.setPixelColor(i, strip.Color(255, 255, 255));
}
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
//16 Ring
for (int i = 24; i < 40; i++)
{
strip.setPixelColor(i, strip.Color(255, 255, 255));
}
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
//24 Ring
for (int i = 0; i < 24; i++)
{
strip.setPixelColor(i, strip.Color(255, 255, 255));
}
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
//Extra by John Kerr
strip.setPixelColor(60, strip.Color(0, 0, 0));
strip.show();
//fade a bit
for (int i = 0; i < 20; i++)
{
fadethemall(20);
}
}
//This reduces the brightness of all leds
void fadethemall(uint8_t wait) {
for (uint16_t i = 0; i < strip.numPixels(); i++) {
uint32_t color = strip.getPixelColor(i);
int r;
int g;
int b;
r = (uint8_t)(color >> 16);
g = (uint8_t)(color >> 8);
b = (uint8_t)color;
if (r > 0)
{
r = r - 1;
}
else
{
r = 0;
}
if (g > 0)
{
g = g - 1;
}
else
{
g = 0;
}
if (b > 0)
{
b = b - 1;
}
else
{
b = 0;
}
strip.setPixelColor(i, strip.Color(r, g, b));
}
strip.show();
delay(wait);
}
//This drives the WS2812 in a crazy pattern, fun!
void colorcrazy() {
colorWipe(strip.Color(255, 0, 0), 25); // Red
colorWipe(strip.Color(0, 255, 0), 25); // Green
colorWipe(strip.Color(0, 0, 255), 25); // Blue
theaterChaseRainbow(5);
}
//This lights up the tree in green, then add the white "candles"
void tree() {
colorWipe(strip.Color(0, 50, 0), 50); // Green
//light "candles"
//Show the S:
for (int i = 0; i < 16; i++)
{
strip.setPixelColor(pgm_read_word(&candles[i]) - 1, strip.Color(255, 255, 255));
strip.show();
delay(50);
}
}
// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
for (uint16_t i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
delay(wait);
}
}
void rainbow(uint8_t wait) {
uint16_t i, j;
for (j = 0; j < 256; j++) {
for (i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel((i + j) & 255));
}
strip.show();
delay(wait);
}
}
// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
uint16_t i, j;
for (j = 0; j < 256 * 5; j++) { // 5 cycles of all colors on wheel
for (i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
}
strip.show();
delay(wait);
}
}
//Theatre-style crawling lights.
void theaterChase(uint32_t c, uint8_t wait) {
for (int j = 0; j < 10; j++) { //do 10 cycles of chasing
for (int q = 0; q < 3; q++) {
for (int i = 0; i < strip.numPixels(); i = i + 3) {
strip.setPixelColor(i + q, c); //turn every third pixel on
}
strip.show();
delay(wait);
for (int i = 0; i < strip.numPixels(); i = i + 3) {
strip.setPixelColor(i + q, 0); //turn every third pixel off
}
}
}
}
//Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {
for (int j = 0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int q = 0; q < 3; q++) {
for (int i = 0; i < strip.numPixels(); i = i + 3) {
strip.setPixelColor(i + q, Wheel( (i + j) % 255)); //turn every third pixel on
}
strip.show();
delay(wait);
for (int i = 0; i < strip.numPixels(); i = i + 3) {
strip.setPixelColor(i + q, 0); //turn every third pixel off
}
}
}
}
// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
WheelPos = 255 - WheelPos;
if (WheelPos < 85) {
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
} else if (WheelPos < 170) {
WheelPos -= 85;
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
} else {
WheelPos -= 170;
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}
}FAQ
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