Arduino | Pixel ON

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Overview

How to set the colour and brightness of the pixel and turn it on.

The Code

LAUNCH BLOCK CODE

#include <Adafruit_NeoPixel.h>

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(1,7,NEO_GRB + NEO_KHZ800);

void setup()
{
  pixels.begin();
  pixels.setBrightness(50);
}


void loop()
{
  pixels.setPixelColor(0,pixels.Color(153,51,153));
  pixels.show();

}

 

Code Breakdown

Set-up

  1. Connect the board to your computer using the USB-C cable.
  2. If you don’t have the Adafruit Neopixel Library you will need to install it
    1. Learn more about how to Install a library
  3. Upload the code (for Arduino IDE uploading see Upload a Sketch in Arduino IDE)

Code Logic

  • Setup()
    • Initialize the pixel library. Set the number of pixels (1) and the brightness (50)
  • Loop()
    • Set the colour of the pixel
    • Show the colour on the pixel

Blocks Used

  • Adafruit -> NeoPixel -> Init
    • LED Num = 1
    • Pin# = 7
    • Brightness = 50
  • Adafruit -> NeoPixel -> Color
    • Set to any colour using the colour picker
  • Adafruit -> NeoPixel -> Show

*Note – if the Adafruit blocks are unavailable in the sidebar, you can enable them under the options (gear menu)