update example

README.md

@@ -20,25 +20,25 @@ Minimal working example (blink):
 
 static const char *TAG = "example";
 static uint8_t led_state_off = 0;
+CRGB* ws2812_buffer;
 
 
 void blink_led(void) {
-    for(int i = 0 ; i < LED_NUM ; i++) {
-        if (led_state_off) ws28xx_pixels[i] = (CRGB){.r=0,.g=0,.b=0};
-        else ws28xx_pixels[i] = (CRGB){.r=50,.g=0,.b=0};
+    for(int i = 0; i < LED_NUM; i++) {
+        if (led_state_off) ws2812_buffer[i] = (CRGB){.r=0, .g=0, .b=0};
+        else ws2812_buffer[i] = (CRGB){.r=50, .g=0, .b=0};
     }
-    ws28xx_update();
+    ESP_ERROR_CHECK_WITHOUT_ABORT(ws28xx_update());
 }
 
 
 void app_main(void) {
-    ws28xx_init(LED_GPIO, WS2812B, LED_NUM);
+    ESP_ERROR_CHECK_WITHOUT_ABORT(ws28xx_init(LED_GPIO, WS2812B, LED_NUM, &ws2812_buffer));
     while (1) {
         ESP_LOGI(TAG, "Turning the LED strip %s!", led_state_off == true ? "ON" : "OFF");
         blink_led();
         led_state_off = !led_state_off;
         vTaskDelay(1000 / portTICK_PERIOD_MS);
     }
 }
-
 ```