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Addressable LED Delay Splitter

A device to split an addressable LED signal where one output skips a configurable amount of pixels.

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-- Sometimes routing addressable data signals is annoying, because of the range limitation and the extra cabling. This device solves this issue by allowing the use of "binary tree topology" signal paths.

Primary use-case:
The device takes a clockless 800 kHz LED data signal (e.g. WS2812B or SK6812) and provides two outputs:
- Primary output: This cannel outputs the first N pixels of the input signal.
- Secondary output: This channel outputs the remaining pixels of the input stream.

The device supports configuration over jumpers or using macros in the source code.

Heart of the device is an ATtiny406. The required timing is archived by using the available hardware features (CCL, Timers).

More images, a demo video, firmware and PCB schematics and designs are available in the repository.

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Inspired by: https://hackaday.io/project/8181-ws2812b-delay-splitter
  • 1 × ATtiny406 ATTINY406-SN
  • 1 × Capacitor 330nF (min. 30V) SMD 0805
  • 1 × Capacitor 100nF (min. 10V) SMD 0805
  • 1 × Resistor 120 Ohm SMD 0805

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