fl::third_party::ezWS2812gpio Class Reference

Detailed Description

ezWS2812 GPIO driver for WS2812 LEDs

This driver uses direct GPIO manipulation with precise timing to generate WS2812 signals. Optimized for 39MHz and 78MHz CPUs.

Hardware Requirements:

• Any GPIO pin can be used
• Interrupts are disabled during transmission
• CPU frequency must be 39MHz or 78MHz for accurate timing

Usage:

ezWS2812gpio leds(60, 7);  // 60 LEDs on pin 7
leds.begin();
leds.set_all(0, 255, 0);  // All green
leds.end_transfer();

Definition at line 173 of file ezWS2812.h.

#include <ezWS2812.h>

Public Member Functions
	ezWS2812gpio (uint16_t num_leds, uint8_t pin)
	Constructor.
void	begin ()
	Initialize GPIO pin.
void	end ()
	End communication.
void	end_transfer ()
	Complete LED data transfer.
void	set_all (uint8_t red, uint8_t green, uint8_t blue)
	Set all LEDs to the same color.
void	set_brightness (uint8_t brightness)
	Set brightness (0-100%)
void	set_pixel (uint8_t red, uint8_t green, uint8_t blue, uint16_t count=1)
	Set color for specific number of LEDs.

Private Member Functions
void	send_bit (bool bit_value) const
	Send a single bit using precise timing.
void	send_byte (uint8_t byte_value) const
	Send a byte (8 bits) with MSB first.

Private Attributes
uint8_t	brightness_
uint16_t	num_leds_
uint8_t	pin_
uint32_t	pin_mask_
volatile uint32_t *	port_clear_
volatile uint32_t *	port_set_

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The documentation for this class was generated from the following file:

• third_party/ezws2812/ezWS2812.h