WS2812 neopixel bar 8 LEDs

Overview

WS2812 LED bar contains eight controllable RGB LEDs. They can be independently controlled using only two digital pins.

Specifications

Model: 8 5050 full color LED module
Size: 11 mm x 15 mm
Chip: WS2811 (built-in LED)
LED: 5050 Package RGB full-color
Voltage: 5 V

Note: The picture above shows LEDs 4 to 7VDC feed on pins and GND, and communication via DIN and DOUT follows: the rectangular pin DIN receives a signal from the Arduino. You can insert multiple LED modules by connecting DOUT to DIN terminal of the next module.

The LED bar contains RBG LEDs inside: red, blue, green. The first 8-bit green LEDs will command the 8 LED RBG, next 8 bits will command the red LEDs, and the last 8 bytes sent before the reset signal will control the blue LEDs. The easiest way to use LED strip is to use a library that already has implemented the functions for generating the necessary signals.

To understand how to interpret the data, track image: a signal logical one for us and logical value 0 0.35 for a period of 0.8 us will be interpreted as a bit with value 0. A signal with a logical one for us 0.7 and 0.6 logical 0 for us will be considered a bit of value 1. To control all the LEDs send 24-bit and a reset signal - a signal LOW for a period.