- Availabilty: Directly available from warehouse in Eindhoven
- Model: WS2812BFLEX-32X8
- SKU: 002130
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.
- Supply voltage: 5V DC
- Signal voltage: 5V
- Maximum current:
- Per LED: ~60mA
- Whole matrix: ~15.4A
- LED chip: WS2812
- Color: RGB
- Number of LEDs: 256 (32x8)
- Backup data line: No
- Dimensions PCB: 320x80mm
For more information about the LED chip, see the datasheet under the tab "Downloads".
Connecting the matrix:
- Use a stable (CE approved*) power supply that can supply sufficient power (minimum is current value above per LED matrix).
- Turn off the power before continuing.
- Connect the wires (meaning wire color is indicated on the PCB):
- 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).
- 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.
- Connect all power supply wires to the plus of the power supply.
- Connect the GND of the matrix and power supply to the GND of the microcontroller.
- Put a large capacitor (1000μF 25V) between GND and the power wire, close to the start of the matrix.
- 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.