set_pixel()

void fl::third_party::ezWS2812::set_pixel ( uint8_t red, uint8_t green, uint8_t blue, uint16_t count = 1 )

inline

Set color for specific number of LEDs.

Parameters

red	Red value (0-255)
green	Green value (0-255)
blue	Blue value (0-255)
count	Number of LEDs to set (default: 1)

Definition at line 115 of file ezWS2812.h.

                                                                                 {
        uint8_t spi_buffer[24]; // 3 colors × 8 bits = 24 SPI bytes per pixel
 
        // Apply brightness
        red = (red * brightness_) / 100;
        green = (green * brightness_) / 100;
        blue = (blue * brightness_) / 100;
 
        // Convert to SPI bit patterns (GRB order for WS2812)
        color_to_spi(green, &spi_buffer[0]);  // Green first
        color_to_spi(red, &spi_buffer[8]);    // Red second
        color_to_spi(blue, &spi_buffer[16]);  // Blue third
 
        // Send pixel data
        for (uint16_t i = 0; i < count && i < num_leds_; i++) {
            for (int j = 0; j < 24; j++) {
                spi_->transfer(spi_buffer[j]);
            }
        }
    }

References brightness_, color_to_spi(), num_leds_, and spi_.

Referenced by set_all().

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