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added project documentation for the bl led ctrl

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Weird Constructor 10 months ago
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      ws2812_bl_ctrl/doc/README.md
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      ws2812_bl_ctrl/doc/schematics_breadboard.jpg

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ws2812_bl_ctrl/doc/README.md

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Bluetooth Raspberry Pi Pico RGB WS2812 LED Controller
=====================================================
Connection schematics, which pins to connect:
HC-05 Pins:
- 1 STATE
- 2 RXD
- 3 TXD
- 4 GND
- 5 VCC
- 6 EN
| Raspberry Pico | HC-05 Module | WS2812 |
|-------------------|--------------|--------|
| 39 VSYS (+5V) | 5 VCC | |
| 40 GND (+5V) | 4 GND | 1 GND |
| 19 GP14 | 1 STATE | |
| 21 GP16 UART0 TX | 2 RXD | |
| 22 GP17 UART0 RX | 3 TXD | |
| 24 GP18 | | 2 DATA |
| | | |

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