diff --git a/templates/f7/Src/main.c b/templates/f7/Src/main.c
index 3cc530f..e7b69f9 100644
--- a/templates/f7/Src/main.c
+++ b/templates/f7/Src/main.c
@@ -371,6 +371,17 @@ static void MX_GPIO_Init(void)
   LL_GPIO_ResetOutputPin(LD2_GPIO_Port, LD2_Pin);
 
   /**/
+  LL_GPIO_SetOutputPin(GPIOD, LL_GPIO_PIN_7);
+  
+  /**/
+  GPIO_InitStruct.Pin = LL_GPIO_PIN_7;
+  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
+  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
+  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
+  LL_GPIO_Init(GPIOD, &GPIO_InitStruct);
+  
+  /**/
   GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
   GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
   GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
diff --git a/templates/f7/middleware.py b/templates/f7/middleware.py
index 627ba43..92d3785 100755
--- a/templates/f7/middleware.py
+++ b/templates/f7/middleware.py
@@ -54,6 +54,7 @@ def submit(channel, action, data):
     else:
         h = struct.pack("<BI", ord(action), len(data))
     write(channel, h)
+    time.sleep(0.1)
     write(channel, data)
 
 def main(argv):