一 前言
今天为大家带来的是 安信可 ESP-12K 驱动WS2812B 灯板；
二 材料
安信可 ESP-12K 开发板 x1WS2812B 灯板一个，杜邦线若干接线图：三 效果
头文件定义好对应的GPIO以及要驱动灯板的LED数量：
#define WS2812B_RMT_LED_NUMBER 24 //24个WS2812B灯珠#define WS2812B_RMT_LED_GPIO 45 //对应的是 GPIO45
3.1 三色循环
//三色循环uint8_t nums = 2;while (nums--){ws2812_ret->set_rgb(ws2812_ret, 100, 255, 0, 0);vTaskDelay((1000 / portTICK_RATE_MS));ws2812_ret->set_rgb(ws2812_ret, 100, 0, 255, 0);vTaskDelay((1000 / portTICK_RATE_MS));ws2812_ret->set_rgb(ws2812_ret, 100, 0, 0, 255);vTaskDelay((1000 / portTICK_RATE_MS));}
3.2 逐渐亮起
/*** @description: 一个一个逐渐亮起* @param {type} * @return: */void TaskWS2812OneByOne(void *p){uint8_t nums = 5;while (nums--){for (int j = 0; j < WS2812B_RMT_LED_NUMBER; j++){// Build RGB valueshue = j * 360 / WS2812B_RMT_LED_NUMBER + start_rgb;led_strip_hsv2rgb(hue, 100, 100, &red, &green, &blue);// Write RGB values to strip driverESP_ERROR_CHECK(ws2812_ret->set_pixel(ws2812_ret, j, red, green, blue));ESP_ERROR_CHECK(ws2812_ret->refresh(ws2812_ret, 100));vTaskDelay(pdMS_TO_TICKS(500));}ws2812_ret->clear(ws2812_ret, 50);vTaskDelay(pdMS_TO_TICKS(1000));}xTaskCreate(TaskWS2812Ranbow, "TaskWS2812Ranbow", 1024 * 2, NULL, 8, NULL);vTaskDelete(NULL);}
3.3 彩虹效果
/*** @description: 彩虹效果* @param {type} * @return: */void TaskWS2812Ranbow(void *p){while (true){for (int i = 0; i < 3; i++){for (int j = i; j < 24; j += 3){// Build RGB valueshue = j * 360 / 24 + start_rgb;led_strip_hsv2rgb(hue, 100, 100, &red, &green, &blue);// Write RGB values to strip driverESP_ERROR_CHECK(ws2812_ret->set_pixel(ws2812_ret, j, red, green, blue));}// Flush RGB values to LEDsESP_ERROR_CHECK(ws2812_ret->refresh(ws2812_ret, 100));vTaskDelay(pdMS_TO_TICKS(10));ws2812_ret->clear(ws2812_ret, 50);vTaskDelay(pdMS_TO_TICKS(10));}start_rgb += 60;}}
源码下载：/xuhongv/StudyInEsp32/tree/master/19_s2_ws2812技术邮箱：support@
