diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index dc40543be..675443dc2 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -29,7 +29,7 @@ static const char *TAG = "ESP IDF Robot";
 #define LEDC_CHANNEL            LEDC_CHANNEL_0
 #define LEDC_DUTY_RES           LEDC_TIMER_13_BIT // Set duty resolution to 13 bits
 #define LEDC_DUTY               (1024) // Set duty to 50%. (2 ** 13) * 50% = 4096 1024
-#define LEDC_FREQUENCY          (500) // Frequency in Hertz. Set frequency at 4 kHz
+#define LEDC_FREQUENCY          (5000)//500) // Frequency in Hertz. Set frequency at 4 kHz
 
 /* Use project configuration menu (idf.py menuconfig) to choose the GPIO to blink,
    or you can edit the following line and set a number here.