diff --git a/src/main.c b/src/main.c
--- a/src/main.c
+++ b/src/main.c
@@ -24,6 +24,9 @@ enum _state
 };
 
 static void __calc_gridloc(char *dst, double lat, double lon);
+static void ledpulse(void);
+
+uint32_t statled_ontime = 0;
 
 
 int main(void)
@@ -51,6 +54,7 @@ int main(void)
     uint8_t fix_ok = 0;
     uint8_t numsats = 0;
 
+
     while (1)
     {
 
@@ -176,13 +180,24 @@ int main(void)
 
         if(HAL_GetTick() - led_timer > blink_rate)
         {
-            HAL_GPIO_TogglePin(LED_BLUE);
+            ledpulse();
             led_timer = HAL_GetTick();
         }
 
+        if(statled_ontime && HAL_GetTick() - statled_ontime > 10)
+        {
+            HAL_GPIO_WritePin(LED_BLUE, 0);
+            statled_ontime = 0;
+        }
+
     }
 }
 
+static void ledpulse(void)
+{
+    HAL_GPIO_WritePin(LED_BLUE, 1);
+	statled_ontime = HAL_GetTick();
+}
 
 static void __calc_gridloc(char *dst, double lat, double lon)
 {