diff --git a/main/main.c b/main/main.c
index 6f2ff6f..606c0f4 100644
--- a/main/main.c
+++ b/main/main.c
@@ -13,13 +13,16 @@
 //
 #include "ble_spp_server_demo.h"
 #include "motor_drive.h"
+#include "port.h"
 
 #define MAIN_LOG_TAG "MAIN"
 #define ble_uart_tx_size 128
 #define ble_uart_rx_size 128
 #define KEY_INT1 27
 #define KEY_INT2 14
+#define DEBUG_LIGHT 12
 #define GPIO_KEY_INPUT_PIN_SEL ((1ULL << KEY_INT1) | (1ULL << KEY_INT2))
+#define GPIO_DEBUG_LIGHT_OUTPUT_PIN_SEL ((1ULL << DEBUG_LIGHT))
 static uint8_t bluetooth_tx_buffer[ble_uart_tx_size] = {0};
 static uint8_t bluetooth_rx_buffer[ble_uart_rx_size] = {0};
 
@@ -108,18 +111,37 @@ void gpio_input_key_init() {
   gpio_config(&gpio_grb_led_structer);
 }
 
+void gpio_output_debug_light_init() {
+  gpio_config_t gpio_grb_led_structer;
+
+  gpio_grb_led_structer.intr_type = GPIO_INTR_DISABLE;
+  gpio_grb_led_structer.mode = GPIO_MODE_INPUT_OUTPUT;
+  gpio_grb_led_structer.pin_bit_mask = GPIO_DEBUG_LIGHT_OUTPUT_PIN_SEL;
+  gpio_grb_led_structer.pull_down_en = 0;
+  gpio_grb_led_structer.pull_up_en = 0;
+
+  gpio_config(&gpio_grb_led_structer);
+}
+
+void port_do_debug_light_state() {
+  static uint32_t debug_light_time;
+  if (port_haspassedms(debug_light_time) > 500) {
+    gpio_set_level(DEBUG_LIGHT, !gpio_get_level(DEBUG_LIGHT));
+    debug_light_time = port_get_ticket();
+  }
+}
+
 void app_main(void) {
-  gpio_input_key_init();
   bleuart_init(&ble_uart_init_struct);
   bleuart_reg_cb(blerxcb);
 
   motor_init(&ble_uart_motor_structer);
   motor_reg_event_cb(motor_on_event);
 
+  gpio_output_debug_light_init();
   while (true) {
-    // bleuart_schedule();
-    // motor_module_schedule();
-    // ESP_LOGI("log1", "%d", gpio_get_level(27));
-    ESP_LOGI("log2", "%d", gpio_get_level(14));
+    port_do_debug_light_state();
+    bleuart_schedule();
+    motor_module_schedule();
   }
 }