Hi guys! I just created this LED matrix, It contains 100 WS2812B-3535 RGB LEDs in 3.5x3.5 mm SMD package at an 65x65mm board. Color and brightness are controlled by a single wire. The boards can be chained together with other boards. Only one control pin is necessary to control the LED matrix. Each pixel is individually addressable.
I was focused on the compact and elegant design, therefore I used SMD components only and place whole the capacitors and resistor on the back. You dont need to use a external resistors because I already placed a 100 Ohm resistor connected to VCC on the input.
Dimension: 2.56 x 2.56 Inch (65 x 65 mm)
Several boards can be tiled together, maintaining the LED pitch.
Each pixel is individually addressable.
Supply Voltage 3.7 to 5.3V
PCB Thickness: 1.6mm
Surface Finish: LeadFree HASL-RoHS
Intelligent reverse connect protection
Contains a constant-current driver cooked right into the LED package
The color of the light were highly consistent, cost-effective
Daisy chain able
Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED