diff --git a/ADIS_tinyK22_SplitFlap/source/application.c b/ADIS_tinyK22_SplitFlap/source/application.c
index def81fa..9cbf1e5 100644
--- a/ADIS_tinyK22_SplitFlap/source/application.c
+++ b/ADIS_tinyK22_SplitFlap/source/application.c
@@ -23,6 +23,7 @@
 #define LED_BLUE_PORT PORTC
 #define LED_BLUE_PIN 2U
 
+
 /* vars */
 static McuLED_Handle_t LED_blue;
 static SF_Handle_t splitflap0, splitflap1;
@@ -70,7 +71,7 @@ static void App_Task(void* pv){
 
 	QueueHandle_t cmdQueueHandle = SHELL_GetShellCmdQueueHandle();;
 	Shell_cmd_s cmd;
-
+	char* sentence;
 	while(1){
 		// if queue recieved something
 		if(xQueueReceive(cmdQueueHandle, &cmd, pdMS_TO_TICKS(20)) == pdPASS){
@@ -83,7 +84,14 @@ static void App_Task(void* pv){
 					// params[0]=hwId, params[1]= setupId
 					MultiSplitFlap_SetHardwareIdentifier(cmd.params[1], cmd.params[0]);
 				break;
-
+				case Shell_Display_String_SF:
+					sentence = (char*)calloc(cmd.numberOfParams,sizeof(char));
+					SHELL_Int32ArrayToStringForSF(cmd.params, cmd.numberOfParams, sentence);
+					McuLog_info("Sentence parsed");
+					MultiSplitFlap_Display(sentence);
+					free(sentence);
+					vTaskDelay(pdMS_TO_TICKS(2000));
+					break;
 				case Shell_Powerof_rpi:
 				default:
 					McuLog_error("Not implemented command recieved in App_Task. Command Id was <%i>", (int)cmd.shellCmd);
diff --git a/ADIS_tinyK22_SplitFlap/source/shell.c b/ADIS_tinyK22_SplitFlap/source/shell.c
index d7de06a..ef66323 100644
--- a/ADIS_tinyK22_SplitFlap/source/shell.c
+++ b/ADIS_tinyK22_SplitFlap/source/shell.c
@@ -66,12 +66,15 @@ static uint8_t ParseCommand(const uint8_t *cmd, bool *handled, McuShell_ConstStd
 		vQueueShellCmd(shellCmd);
 	  } else if(McuUtility_strcmp((char*)cmd,SHELL_CMD_POWEROFF_RPI) == 0){
 		  // shutown rpi
+		  *handled = TRUE;
 		  Shell_cmd_s shellCmd = {.shellCmd = Shell_Powerof_rpi, .numberOfParams = 0};
 		  vQueueShellCmd(shellCmd);
 	  }else if(McuUtility_strcmp((char*)cmd, SHELL_CMD_INIT_ALL_SF) == 0){
+		  *handled = TRUE;
 		  Shell_cmd_s shellCmd = {.shellCmd = Shell_Init_All_SF, .numberOfParams = 0};
 		  vQueueShellCmd(shellCmd);
 	  }else if(McuUtility_strncmp((char*)cmd,SHELL_CMD_DISPLAY_STRING,sizeof(SHELL_CMD_DISPLAY_STRING)-1) == 0){
+		  *handled = TRUE;
 		  Shell_cmd_s shellCmd = {.shellCmd = Shell_Display_String_SF, .numberOfParams = NUM_FLAPS, .params = {0}};
 		  cmd += sizeof(SHELL_CMD_DISPLAY_STRING)-1;
 		  if(SHELL_stringToInt32ArrayForSFCMD(&cmd, shellCmd.params, NUM_FLAPS) != ERR_OK){
@@ -95,9 +98,13 @@ uint8_t SHELL_stringToInt32ArrayForSFCMD(const unsigned char **str, int32_t* res
 			// its a number
 			*res = (int32_t)c;
 			res++;
-		}else if(c >= 'A' && c <= 'Z'){
+		}else if((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')){
 			// its a char
-			*res = (int32_t)c;
+			if(c >= 'a' && c <= 'z'){
+				*res = (int32_t)c-0x20;
+			}else{
+				*res = (int32_t)c;
+			}
 			res++;
 		} else if(c == '!' || c == '?' || c == ':' || c == ' '){
 			// special character allowed by SF
@@ -109,7 +116,14 @@ uint8_t SHELL_stringToInt32ArrayForSFCMD(const unsigned char **str, int32_t* res
 		c = *(++(*str));
 	}
 	return ERR_OK;
+}
 
+uint8_t SHELL_Int32ArrayToStringForSF(int32_t* intArray, int8_t size, char *str){
+	for(uint8_t i = 0; i < size; i++){
+		*str = (char)intArray[i];
+		str++;
+	}
+	return ERR_OK;
 }
 
 static const McuShell_ParseCommandCallback CmdParserTable[] =
diff --git a/ADIS_tinyK22_SplitFlap/source/shell.h b/ADIS_tinyK22_SplitFlap/source/shell.h
index 110f540..6b777e4 100644
--- a/ADIS_tinyK22_SplitFlap/source/shell.h
+++ b/ADIS_tinyK22_SplitFlap/source/shell.h
@@ -41,7 +41,21 @@ extern "C" {
 
 QueueHandle_t SHELL_GetShellCmdQueueHandle();
 
+/*!
+ * \brief Converts a string to a integer array for sending with the cmd queue
+ * \param str String to convert
+ * \param res Array pointer to store the values
+ * \param size of the string / array
+ */
 uint8_t SHELL_stringToInt32ArrayForSFCMD(const unsigned char **str, int32_t* res, int8_t sizeRes);
+
+/*!
+ * \brief Converts a int array to a string
+ * \param intArray array to convert
+ * \param size the size of the array
+ * \param str to store string
+ */
+uint8_t SHELL_Int32ArrayToStringForSF(int32_t* intArray, int8_t size, char *str);
 /*!
  * \brief Send a string to all supported I/Os
  * \param str String to send