# Wiring Guide

## ※**Wiring WS2812/SK6812 Compatible (Neopixel) LEDs**

**Power Requirements**

* Neopixel LEDs need one digital IO pin and a power supply.
* They typically operate at **5V** but can also function with a **3V** source.
* Always verify the manufacturer's specifications for compatibility with your board.

**Pin Configuration**\
Each Neopixel has four pins:

* **VCC**: Power supply
* **GND**: Ground
* **Din**: Data input
* **Dout**: Data output

Neopixel strips generally come with three solder pads or a connector with three pins, marked with arrows to indicate data flow direction.\
**Note**: The Din pin is unidirectional and cannot be reversed.

**Wiring Instructions**

1. Connect the Din (D→) pin to an available digital IO pin on the MCU board.
2. Connect the VCC pin to a compatible voltage supply.
   * Neopixels typically draw **60mA** of current per LED at full brightness. If your printer board's power capabilities are limited, consider using a separate power source.
3. Run a GND wire from the Neopixel strip back to the MCU board, along with a GND connection to the power source for proper communication.

**Limitations**

* The number of Neopixels per IO pin is limited.
* You can connect two strips to the same data pin to display the same colors.
* Alternatively, configure multiple LED chains on different IO pins in the LED Effects settings.

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## **Wiring APA102 Compatible (Dotstar) LEDs**

APA102 Dotstar LEDs are similar to Neopixel LEDs but utilize one-way **SPI** for communication. This requires the addition of a **clock signal** for the emitters, allowing multiple strips to share the same clock pin while each needing its own data line.