diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index 03f3668b6..7980f1c9e 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -139,6 +139,7 @@ static void ledc_init (void) {
         .freq_hz =          LEDC_FREQUENCY,
         .clk_cfg =          LED_SUTO_CLK
     };
+    ESP_ERROR_CHECK(ledc_timer_config(&ledc_timer));
 }
 
 void app_main(void)