UART commands work

Core/Src/main.c

@@ -50,7 +50,7 @@
 /* Private variables ---------------------------------------------------------*/
 
 /* USER CODE BEGIN PV */
-
+extern uint8_t UART_RxBuf[6];
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -122,6 +122,7 @@ int main(void)
 
     /* USER CODE BEGIN 3 */
 
+uint8_t UART_Buff[] = "Hello World\n";
 
 
 #define EFFECT_TIME 10000
@@ -141,10 +142,12 @@ int main(void)
 
 	// ws_Effect_RoudTheClock();
 
-
+	HAL_UART_Receive_IT(&huart2, UART_RxBuf, sizeof(UART_RxBuf));
 
 	HAL_GPIO_TogglePin(LED_Green_GPIO_Port, LED_Green_Pin);
 
+	HAL_UART_Transmit(&huart2, UART_Buff, sizeof(UART_Buff), 1000);
+
 	HAL_Delay(1000);
 
   }