【ESP32 IDF】WS2812B灯驱动

2024-09-03 15:52

文章标签 驱动 esp32 idf ws2812b

本文主要是介绍【ESP32 IDF】WS2812B灯驱动，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

WS2812B灯驱动

1. 简单描述
2. 驱动过程
3.主函数添加驱动程序

1. 简单描述

开发环境为 IDF5.2.2
采用乐鑫官方组件库

组件库地址：
https://components.espressif.com/components/espressif/led_strip/versions/2.5.5

2. 驱动过程

复制led_strip组件命令

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在自己项目里面添加led_strip组件

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编译生成managed_components 和 espressif__led_strip

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3.主函数添加驱动程序

/** SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD** SPDX-License-Identifier: Unlicense OR CC0-1.0*/
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "led_strip.h"
#include "esp_log.h"
#include "esp_err.h"// GPIO assignment
#define LED_STRIP_BLINK_GPIO  GPIO_NUM_48
// Numbers of the LED in the strip
#define LED_STRIP_LED_NUMBERS 24static const char *TAG = "example";led_strip_handle_t configure_led(void)
{// LED strip general initialization, according to your led board designled_strip_config_t strip_config = {.strip_gpio_num = LED_STRIP_BLINK_GPIO,   // The GPIO that connected to the LED strip's data line.max_leds = LED_STRIP_LED_NUMBERS,        // The number of LEDs in the strip,.led_pixel_format = LED_PIXEL_FORMAT_GRB, // Pixel format of your LED strip.led_model = LED_MODEL_WS2812,            // LED strip model.flags.invert_out = false,                // whether to invert the output signal};// LED strip backend configuration: SPIled_strip_spi_config_t spi_config = {.clk_src = SPI_CLK_SRC_DEFAULT, // different clock source can lead to different power consumption.flags.with_dma = true,         // Using DMA can improve performance and help drive more LEDs.spi_bus = SPI2_HOST,           // SPI bus ID};// LED Strip object handleled_strip_handle_t led_strip;ESP_ERROR_CHECK(led_strip_new_spi_device(&strip_config, &spi_config, &led_strip));ESP_LOGI(TAG, "Created LED strip object with SPI backend");return led_strip;
}void app_main(void)
{led_strip_handle_t led_strip = configure_led();bool led_on_off = false;ESP_LOGI(TAG, "Start blinking LED strip");while (1) {if (led_on_off) {/* Set the LED pixel using RGB from 0 (0%) to 255 (100%) for each color */for (int i = 0; i < LED_STRIP_LED_NUMBERS; i++) {ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, i, 255, 0, 0));}/* Refresh the strip to send data */ESP_ERROR_CHECK(led_strip_refresh(led_strip));ESP_LOGI(TAG, "LED ON!");} else {/* Set all LED off to clear all pixels */ESP_ERROR_CHECK(led_strip_clear(led_strip));ESP_LOGI(TAG, "LED OFF!");}led_on_off = !led_on_off;vTaskDelay(pdMS_TO_TICKS(500));}
}