50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
#include "ws2812.h"
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#include "esp_log_level.h"
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#include "led_strip.h"
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#include "pins.h"
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#include <stdint.h>
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#include <stdio.h>
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led_strip_handle_t led_strip;
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void ws2812_init() {
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/// LED strip common configuration
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led_strip_config_t strip_config = {
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.strip_gpio_num =
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WS2812_PIN, // The GPIO that connected to the LED strip's data line
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.max_leds = 1, // The number of LEDs in the strip,
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.led_model =
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LED_MODEL_WS2812, // LED strip model, it determines the bit timing
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.color_component_format =
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LED_STRIP_COLOR_COMPONENT_FMT_GRB, // The color component format is
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// G-R-B
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.flags = {
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.invert_out = false, // don't invert the output signal
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}};
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/// RMT backend specific configuration
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led_strip_rmt_config_t rmt_config = {
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.clk_src = RMT_CLK_SRC_DEFAULT, // different clock source can lead to
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// different power consumption
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.resolution_hz = 10 * 1000 * 1000, // RMT counter clock frequency: 10MHz
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.mem_block_symbols =
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64, // the memory size of each RMT channel, in words (4 bytes)
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.flags = {
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.with_dma =
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false, // DMA feature is available on chips like ESP32-S3/P4
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}};
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/// Create the LED strip object
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ESP_ERROR_CHECK(
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led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip));
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if (!led_strip) {
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printf("LED strip init failed!\n");
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} else {
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printf("LED string init done\n");
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}
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}
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void ws2812_send_rgb(uint8_t r, uint8_t g, uint8_t b) {
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ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, 0, r, g, b));
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ESP_ERROR_CHECK(led_strip_refresh(led_strip));
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} |