diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index c514c965c..f6f5f852a 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -34,7 +34,7 @@ TIMER RESOLUTION    MAX VALUE   HALF-DUTY
 13                  8191            4095
 */
 #define LEDC_DUTY               (7680) // 7680, 7424, 7168, 6144, 512, 768
-#define LEDC_FREQUENCY          (4000) // For LED the freuqncy of 500Hz seems to be sufficient. // Frequency in Hertz. For DC motor, set frequency at 5 kHz
+#define LEDC_FREQUENCY          (9765) // For LED the freuqncy of 500Hz seems to be sufficient. // Frequency in Hertz. For DC motor, set frequency at 5 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.