diff --git a/Class/CDC/Src/usbd_cdc_if.c b/Class/CDC/Src/usbd_cdc_if.c
index 8c0567d..bb6ab94 100644
--- a/Class/CDC/Src/usbd_cdc_if.c
+++ b/Class/CDC/Src/usbd_cdc_if.c
@@ -24,6 +24,8 @@ EndBSPDependencies */
 /* Includes ------------------------------------------------------------------*/
 #include "usbd_cdc_if.h"
 
+
+extern TIM_HandleTypeDef htim2;
 /** @addtogroup STM32_USB_DEVICE_LIBRARY
   * @{
   */
@@ -216,13 +218,30 @@ static int8_t TEMPLATE_Receive(uint8_t *Buf, uint32_t *Len)
   UNUSED(Buf);
   UNUSED(Len);
   
-  if(Buf[0] == '1')
-          HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
-  else if(Buf[0] == '0')
-          HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
+  switch (Buf[0])
+  {
+  case ('1'):
+    htim2.Instance->CCR1 = 10;
+    break;
+
+  case ('2'):
+    htim2.Instance->CCR1 = 25;
+    break;
+
+  case ('3'):
+    htim2.Instance->CCR1 = 50;
+    break;
+
+  case ('4'):
+    htim2.Instance->CCR1 = 75;
+    break;
   
+  default:
+    htim2.Instance->CCR1 = 99;
+    break;
+  }
   
-          USBD_CDC_ReceivePacket(&hUsbDeviceFS);
+  USBD_CDC_ReceivePacket(&hUsbDeviceFS);
   return (USBD_OK);
 }