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WS2812b 5 - Chip Board

1 year ago 435
  • Description
  • Documents
  • BOM
  • Attachments
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Description

This design has not yet been built and tested Cascade-able 5 Chip Neopixel board suitable for decorative lamps especially using the ESPEasy NeoFlame plugin.
Should work well with any Neopixel application that is suitable for groups of five LEDs. This board is for individual WS2812b LED chips. Not the ones pre-mounted on a heat sink pcb with resistor and capacitor already installed. Provisions are made for a large i.e 1000uF 10v Filter capacitor. Individual 0.1uF decoupling capacitors in 1206 SMD Size. Board uses a 1N4148 or similar SMD Diode to drop the supply voltage to the first WS2812 to about +4.7V. This will allow the board to be driven from 3.3V GPIO and still use a +5V Power Supply for the LEDs. Only the first chip requires the voltage drop, the cascaded chips will all be a +5V input logic leve.

Documents

Schematic

Corrected_5-Chip_WS2812_Board

BOM

ID Name Designator Footprint Quantity Mounted
1 WS2812B LED1,LED2,LED3,LED4,LED5 LED-5050_4P 5 Yes C114585
2 +5V P5,P6 HDR-1X1/2.54 2 Yes C81276
3 GND P4,P1 HDR-1X1/2.54 2 Yes C81276
4 Din P2 HDR-1X1/2.54 1 Yes C81276
5 DOUT P3 HDR-1X1/2.54 1 Yes C81276
6 1000uF C1 CAP-D4.0XF1.5 1 Yes
7 0.1uF C2,C3,C4,C5,C6 1206 5 Yes
8 1N4448 D1 DO-35 1 Yes C54037

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