成功使用lora发生hello world

Core/Src/main.c

@@ -129,6 +129,9 @@ int main(void)
   // 发送一个字符串到UART2
   const char *msg = "AT+ROLE=2";  // 建议加上回车换行
   HAL_UART_Transmit(&huart3, (uint8_t *)msg, strlen(msg), HAL_MAX_DELAY);
+
+  const char *lora_msg = "AT+OPTION=3,0";  // 建议加上回车换行
+  HAL_UART_Transmit(&huart2, (uint8_t *)lora_msg, strlen(lora_msg), HAL_MAX_DELAY);
   // uint8_t i = 0xaa;
   /* USER CODE END 2 */
 
@@ -149,6 +152,10 @@ int main(void)
     // HAL_UART_Transmit(&huart1, &i, 1, 100);
     // HAL_UART_Transmit(&huart1, rx_buf, strlen(rx_buf), 100);
     // i++;
+
+    const char *lora_data = "hello world\r\n";  // 建议加上回车换行
+    HAL_UART_Transmit(&huart2, (uint8_t *)lora_data, strlen(lora_data), HAL_MAX_DELAY);
+
     HAL_Delay(1000);
     /* USER CODE BEGIN 3 */
   }