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
Connect the Din (D→) pin to an available digital IO pin on the MCU board.
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.
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.
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.
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