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STD WS2813 4x4 PCB & shifter hack
License: Public Domain
Mode: Editors' pick
Cloned from ws2813 board
- 2
Update time：
2020-12-31 17:43:45
Creation time：
2020-11-04 19:57:18
Description
WS2813 4x4 PCB with level shifter hack
****Warning: PCB may not be designed with best design practices****
(but it works)
**Neopixel level shifter hack**:
* A pixel gets sacrificed and fed with power through a diode
* The reduced voltage reduces the brightness of the pixel, but also makes it accept 3.3V data input
* The voltage on the data out pin is higher than on the data in pin, so the next pixel can be powered with 5V
On this PCB the sacrificed pixel is on the backside of the PCB, so it's hidden.
The level shifter hack also works with WS2812 LEDs.
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1000uF | C1 | CAP-SMD_BD8.0-L8.3-W8.3-RD | 1 |
| 2 | WS2813B-B | PIXEL1,PIXEL2,PIXEL3,PIXEL4,PIXEL5,PIXEL10,PIXEL9,PIXEL8,PIXEL7,PIXEL6,PIXEL15,PIXEL14,PIXEL13,PIXEL12,PIXEL11,PIXEL16,SACRIFICE | LED-SMD_6P-L5.0-W5.0-TL | 17 |
| 3 | 1n4001 DO-41 | D1 | DO-35_BD2.0-L4.2-P8.20-D0.5-RD | 1 |
| 4 | 0 | BYPASS | R0805 | 1 |
| 5 | 330 | R1 | R0805 | 1 |
| 6 | HDR-M-2.54_1x4 | J2 | HDR-M-2.54_1X4 | 1 |
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