diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index cbe324859..31eb65d43 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -379,8 +379,8 @@ void onDataReceived (const uint8_t *mac_addr, const uint8_t *data, uint8_t data_
     rc_x = buf.x_axis;                  // Save joystic x-axis value
     rc_y = buf.y_axis;                  // Save joystic y-axis value
     update_pwm(rc_x, rc_y);
-    mqtt_update_pwm_1(rc_x);
-    mqtt_update_pwm_2(rc_y);
+    mqtt_update_pwm_1(rc_x);            // Publish PWM-1 on MQTT Broker
+    mqtt_update_pwm_2(rc_y);            // Publish PWM-2 on MQTT Broker
 }
 
 void ultrasonic_task (void *arg) {
diff --git a/ESP-IDF_Robot/main/motor_controls.h b/ESP-IDF_Robot/main/motor_controls.h
index 47984de3b..51d3beef8 100644
--- a/ESP-IDF_Robot/main/motor_controls.h
+++ b/ESP-IDF_Robot/main/motor_controls.h
@@ -1,5 +1,5 @@
 #ifndef MOTOR_CONTROLS_H
-#define MOTOR_CONTROLSC_H
+#define MOTOR_CONTROLS_H
 
 // Interpolate value (x) based on raw reading, min/max limits.
 /*