diff --git a/S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/hsb-mrts/src/hwValidationMenu.c b/S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/hsb-mrts/src/hwValidationMenu.c
index ef06d43..7b5b67a 100644
--- a/S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/hsb-mrts/src/hwValidationMenu.c	
+++ b/S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/hsb-mrts/src/hwValidationMenu.c	
@@ -1111,7 +1111,7 @@ static void hwValidationMenuSM(struct HwValidationMenu* self, Button_Pressed_t b
                char data[CMD_BUFFER_SIZE] = {0}; 
 
                size_t actualLength;
-               char buffer[sizeof(struct KeypadQueueItem) / sizeof(char)];
+               char buffer[sizeof(struct KeypadQueueItem) / sizeof(char)] = {0};
                ErrorStatus returnValueKeypad = SUCCESS;
 
                outputBufferLength = sprintf(self->outputBuffer, "Keypad test started. Press Esc to stop this test.\r\n");
@@ -1132,7 +1132,7 @@ static void hwValidationMenuSM(struct HwValidationMenu* self, Button_Pressed_t b
                      break;
                   }
 
-                  returnValueKeypad = IODevice_read(&self->testItems->keypad->device, buffer, sizeof(struct KeypadQueueItem) / sizeof(char), &actualLength);
+                  returnValueKeypad = IODevice_read((struct IODevice *)self->testItems->keypad, buffer, sizeof(struct KeypadQueueItem) / sizeof(char), &actualLength);
 
                   if (returnValueKeypad == SUCCESS)
                   {
@@ -1141,16 +1141,17 @@ static void hwValidationMenuSM(struct HwValidationMenu* self, Button_Pressed_t b
                      keyState = rxQueueItem->keyEvent;
 
                      if(keyState == RELEASED){
-                        outputBufferLength = sprintf(self->outputBuffer, "KEYPAD: Pressed %d-%d\r\n", rxQueueItem->rowCoordinate, rxQueueItem->columnCoordinate);
-                     } else {
                         outputBufferLength = sprintf(self->outputBuffer, "KEYPAD: Released %d-%d\r\n", rxQueueItem->rowCoordinate, rxQueueItem->columnCoordinate);
-                     }
-
+                     } else {
+                        outputBufferLength = sprintf(self->outputBuffer, "KEYPAD: Pressed %d-%d\r\n", rxQueueItem->rowCoordinate, rxQueueItem->columnCoordinate);
+                     } 
+                     IODevice_write(self->ioDevice, self->outputBuffer, outputBufferLength);
                   }
-                  else
+                  else 
                   {
-                     outputBufferLength = sprintf(self->outputBuffer, "KEYPAD: Read error\r\n");
+                     //outputBufferLength = sprintf(self->outputBuffer, "KEYPAD: Read error\r\n");
                   }
+                  vTaskDelay(10);
 
                }