diff --git a/stm-firmware/shell.c b/stm-firmware/shell.c
index 01d9758..481ff28 100644
--- a/stm-firmware/shell.c
+++ b/stm-firmware/shell.c
@@ -37,6 +37,7 @@
 #include <reflow-controller/rotary-encoder.h>
 #include <reflow-controller/safety/safety-controller.h>
 #include <reflow-controller/settings/settings.h>
+#include <reflow-controller/button.h>
 
 #ifndef GIT_VER
 #define GIT_VER "VERSION NOT SET"
@@ -60,7 +61,7 @@ static shellmatta_retCode_t shell_cmd_ver(const shellmatta_handle_t   handle,
 	unique_id_get(&high_id, &mid_id, &low_id);
 
 	shellmatta_printf(handle, "Reflow Oven Controller Firmware " xstr(GIT_VER) "\r\n"
-					"Compiled: " __DATE__ " at " __TIME__ "\r\n");
+										   "Compiled: " __DATE__ " at " __TIME__ "\r\n");
 	shellmatta_printf(handle, "Serial: %08X-%08X-%08X", high_id, mid_id, low_id);
 
 	return SHELLMATTA_OK;
@@ -180,10 +181,10 @@ static shellmatta_retCode_t shell_cmd_uptime(const shellmatta_handle_t   handle,
 	systick_get_uptime_from_tick(&days, &hours, &mins, &secs);
 
 	shellmatta_printf(handle, "Uptime: %u day%s %02u:%02u:%02u",
-					days, (days == 1 ? "" : "s"),
-					hours,
-					mins,
-					secs);
+			  days, (days == 1 ? "" : "s"),
+			  hours,
+			  mins,
+			  secs);
 	return SHELLMATTA_OK;
 }
 
@@ -344,7 +345,7 @@ static shellmatta_retCode_t shell_cmd_cat(const shellmatta_handle_t handle, cons
 }
 
 static shellmatta_retCode_t shell_cmd_read_flags(const shellmatta_handle_t handle, const char *arguments,
-					  uint32_t length)
+						 uint32_t length)
 {
 	(void)length;
 	(void)arguments;
@@ -357,7 +358,7 @@ static shellmatta_retCode_t shell_cmd_read_flags(const shellmatta_handle_t handl
 	struct timing_monitor_info timing_info;
 
 	shellmatta_printf(handle, "Error flags\r\n"
-	       "-----------\r\n");
+				  "-----------\r\n");
 
 	count = safety_controller_get_flag_count();
 	for (i = 0; i < count; i++) {
@@ -406,7 +407,7 @@ static shellmatta_retCode_t shell_cmd_read_flags(const shellmatta_handle_t handl
 	}
 
 	shellmatta_printf(handle, "\r\nTiming Monitors\r\n"
-				       "--------------\r\n");
+				  "--------------\r\n");
 
 
 	count = safety_controller_get_timing_monitor_count();
@@ -425,7 +426,7 @@ static shellmatta_retCode_t shell_cmd_read_flags(const shellmatta_handle_t handl
 }
 
 static shellmatta_retCode_t shell_cmd_save_cal(const shellmatta_handle_t handle, const char *arguments,
-					  uint32_t length)
+					       uint32_t length)
 
 {
 	(void)length;
@@ -447,7 +448,7 @@ static shellmatta_retCode_t shell_cmd_save_cal(const shellmatta_handle_t handle,
 }
 
 static shellmatta_retCode_t shell_cmd_hang(const shellmatta_handle_t handle, const char *arguments,
-					 uint32_t length)
+					   uint32_t length)
 {
 	(void)handle;
 	(void)arguments;
@@ -458,6 +459,48 @@ static shellmatta_retCode_t shell_cmd_hang(const shellmatta_handle_t handle, con
 	return SHELLMATTA_OK;
 }
 
+static shellmatta_retCode_t shell_cmd_ui_emulation(const shellmatta_handle_t handle, const char *arguments,
+						   uint32_t length)
+{
+	(void)length;
+	(void)arguments;
+	uint32_t i;
+	uint32_t len;
+	char *buff;
+
+	shellmatta_read(handle, &buff, &len);
+
+	for (i = 0; i < len; i++) {
+		switch (buff[i]) {
+		case 'W':
+		case 'w':
+			rotary_encoder_override_delta(4);
+			break;
+		case 's':
+		case 'S':
+			rotary_encoder_override_delta(-4);
+			break;
+		case '\r':
+			button_override_event(BUTTON_SHORT_RELEASED);
+			break;
+		case 'l':
+		case 'L':
+			button_override_event(BUTTON_LONG);
+			break;
+		case 'k':
+		case 'K':
+			button_override_event(BUTTON_SHORT);
+			break;
+		case 'r':
+		case 'R':
+			button_override_event(BUTTON_LONG_RELEASED);
+			break;
+		}
+	}
+
+	return SHELLMATTA_CONTINUE;
+}
+
 //typedef struct shellmatta_cmd
 //{
 //    char                    *cmd;       /**< command name                           */
@@ -467,7 +510,7 @@ static shellmatta_retCode_t shell_cmd_hang(const shellmatta_handle_t handle, con
 //    shellmatta_cmdFct_t     cmdFct;     /**< pointer to the cmd callack function    */
 //    struct shellmatta_cmd   *next;      /**< pointer to next command or NULL        */
 //} shellmatta_cmd_t;
-static shellmatta_cmd_t cmd[15] = {
+static shellmatta_cmd_t cmd[16] = {
 	{
 		.cmd = "version",
 		.cmdAlias = "ver",
@@ -586,8 +629,16 @@ static shellmatta_cmd_t cmd[15] = {
 		.helpText = "",
 		.usageText = "",
 		.cmdFct = shell_cmd_hang,
+		.next = &cmd[15],
+	},
+	{
+		.cmd = "ui-emulate",
+		.cmdAlias = NULL,
+		.helpText = "",
+		.usageText = "",
+		.cmdFct = shell_cmd_ui_emulation,
 		.next = NULL,
-	}
+	},
 };
 
 shellmatta_handle_t shell_init(shellmatta_write_t write_func)