SK6812 RGB LED Flex-strip

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Description

NeoPixel is a extendable strip light with Neopixels lined on. Just in case you haven’t heard about Neopixel yet, Neopixel features digitally addressable LEDs,which means each led can display RGB color and brightness individually. It is very easy to program by Single-BUS with simple protocol. Another feature is the extension and flexiblulity.You can even connect many of them up together to create a massive long LED display. It's important to note that, the brightness and the quantity of LEDs matters the most to the power consuming, if you have a bunch of them connectted up, you will need extra power supply.

Notice: please pay attention to the direction of the input port and output port

Product Features

  • Alternative length: 10cm/20cm/0.5m/1m/2m
  • Sofeware Development Platform: Arduino, UIFlow(Blockly,Python)
  • extendable

Kit includes

  • 1x NeoPixel Unit
  • 1x Grove Cable
Documents
Learn

Example

1. Arduino IDE

To get complete code, please click here

/*
    Install FastLED library first.
*/
#include <M5Stack.h>
#include "FastLED.h"

#define Neopixel_PIN    21
#define NUM_LEDS    30

CRGB leds[NUM_LEDS];
uint8_t gHue = 0;
static TaskHandle_t FastLEDshowTaskHandle = 0;
static TaskHandle_t userTaskHandle = 0;

void setup(){
  Serial.begin(115200);
  M5.begin();
  M5.Lcd.clear(BLACK);
  M5.Lcd.setTextColor(YELLOW); M5.Lcd.setTextSize(2); M5.Lcd.setCursor(40, 0);
  M5.Lcd.println("Neopixel example");
  M5.Lcd.setTextColor(WHITE);
  M5.Lcd.setCursor(0, 25);
  M5.Lcd.println("Display rainbow effect");

  // Neopixel initialization
  FastLED.addLeds<WS2811,Neopixel_PIN,GRB>\
                         (leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(10);
  xTaskCreatePinnedToCore(FastLEDshowTask, \
                         "FastLEDshowTask", 2048, NULL, 2, NULL, 1);
}

void loop(){
}

void FastLEDshowESP32(){
    if (userTaskHandle == 0){
        userTaskHandle = xTaskGetCurrentTaskHandle();
        xTaskNotifyGive(FastLEDshowTaskHandle);
        const TickType_t xMaxBlockTime = pdMS_TO_TICKS( 200 );
        ulTaskNotifyTake(pdTRUE, xMaxBlockTime);
        userTaskHandle = 0;
    }
}

void FastLEDshowTask(void *pvParameters){
    for(;;){
        fill_rainbow(leds, NUM_LEDS, gHue, 7);// rainbow effect
        FastLED.show();// must be executed for neopixel becoming effective
        EVERY_N_MILLISECONDS( 20 ) { gHue++; }
    }
}

2. UIFlow

To get the complete code, please click here.

More information

PinMap

M5Core(GROVE A) GPIO22 GPIO21 5V GND
NEOPIXEL Unit / Signal Pin 5V GND

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J
J.A.

NeoPixel RGB LEDs Cable SK6812 with GROVE Port

J
J.R.

NeoPixel RGB LEDs Cable SK6812 with GROVE Port

B
B.K.

NeoPixel RGB LEDs Cable SK6812 with GROVE Port

H
H.L.

NeoPixel RGB LEDs Cable SK6812 with GROVE Port

R
R.K.

NeoPixel RGB LEDs Cable SK6812 with GROVE Port

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