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RTB_E10
This E10 module implements a 16 channel WS2811 emulator with compatible bus timing. The E10 may be cascaded with regular WS28xx chips. The number of LEDs is auto detected/configured (0-16). Optionally, the common LED voltage can be controlled over the bus as well.
User Guides
- User Guide - DE
- User Guide - EN
<img src=supplemental/images/E10_main.jpg>
The decoder has the following features,
- Protocol
- WS2811 compatible timing
- LED ports
- 0..16 channel output (auto detecting)
- Software selectable common LED voltage (0 .. 5V)
- Push/Pull output and can drive common anode or cathode
- 256 step PWM (240Hz)
- gamma correction (optional)
- firmware update via V24 debug interface
Hardware
My current PCB layout uses SMD footprints with 0.5mm pitch and 0603 parts. Reflow soldering is my recommendation, but with some experience handsoldering is also possible.
The hardware allows either push or pull operation. Currently only the pull operation is implemented in the firmware. Should a usecase for push-operation arise, the firmware could be adapted.
<img src=supplemental/images/E10_top_connect.jpg>
PCB
- 2-layer PCB, FR4, 1.6mm
- CPU: AVR64DA32
- BUS: WS28xx
- LED: Push/Pull
Kicad
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