WorldSemi WS2812B Digitale 5050 RGB LED - Matrix 8x8 - Flexible

A digital LED matrix of which the color and brightness of each LED can be controlled separately. A lot of LEDs can be placed in sequence and all can be controlled with 1 pin of a microcontroller. Various platforms provide support for this LED by means of libraries, including Arduino and Raspberry Pi.

The LEDs are soldered on a flexible PCB in a zig-zag pattern. Connection wires are soldered to the PCB.

Specifications:

• Supply voltage: 5V DC
• Signal voltage: 5V
• Maximum current:
  • Per LED: ~60mA
  • Whole matrix: ~3.8A
• LED chip: WS2812
• Color: RGB
• Number of LEDs: 64 (8x8)
• Backup data line: No
• Dimensions PCB: 80x80mm

For more information about the LED chip, see the datasheet under the tab "Downloads".

Connecting the matrix:

1. Use a stable (CE approved*) power supply that can supply sufficient power (minimum is current value above per LED matrix).
2. Turn off the power before continuing.
3. Connect the wires (meaning wire color is indicated on the PCB):
   1. First, connect all GND (ground/min) wires of the LED matrix to the GND of the power supply (disconnect this last when disconnecting the matrix).
   2. Connect the data (DI) wire via a 470Ω with the signal pin of the microcontroller (a level converter may be needed with 3.3V microcontrollers), or the data out (DO) wire from another matrix.
   3. Connect all power supply wires to the plus of the power supply.
4. Connect the GND of the matrix and power supply to the GND of the microcontroller.
5. Put a large capacitor (1000μF 25V) between GND and the power wire, close to the start of the matrix.
6. The power supply can now be turned on.

*There are many power supplies on the market that have a China Export ("fake" CE marking) or carry a CE marking, but are in reality not CE approved. We do not recommend using these, often cheap (Chinese), power supplies because they generally do not provide a stable voltage. A stable voltage is essential to make the LEDS work stable, and to prevent damaging them.

We recommend reading the following pages for more information (especially when using multiple LED matrices): Powering Neopixels and Adafruit NeoPixel Überguide.