diff --git a/elite_board.c b/elite_board.c
index 26cedb1..25f6c60 100644
--- a/elite_board.c
+++ b/elite_board.c
@@ -11,6 +11,21 @@ void elite_board_init(void)
 #endif
 }
 
+void elite_board_demo(void)
+{
+#if (DEF_ELITE_DEMO_WO_SOFTDEVICE || DEF_ELITE_DEMO_W_SOFTDEVICE)
+
+#if (DEF_ELITE_MODEL == DEF_ELITE_EDC_V2_0)
+
+#elif (DEF_ELITE_MODEL == DEF_ELITE_PEL_V2_0)
+
+#elif (DEF_ELITE_MODEL == DEF_ELITE_CPG_V1_1)
+    cpg_pulse_default_demo_ext();
+#endif
+
+#endif
+}
+
 void elite_board_power_off(void)
 {
 #if (DEF_ELITE_MODEL == DEF_ELITE_EDC_V2_0)
diff --git a/elite_board.h b/elite_board.h
index 3ebff57..c73bb9f 100644
--- a/elite_board.h
+++ b/elite_board.h
@@ -28,6 +28,7 @@ extern "C"
     void elite_board_init(void);
     void elite_board_power_off(void);
     void elite_drv_init(void);
+    void elite_board_demo(void);
 
 #ifdef __cplusplus
 }
diff --git a/main.c b/main.c
index e7989cd..a5e4c49 100644
--- a/main.c
+++ b/main.c
@@ -101,6 +101,13 @@ static void nrf_sdh_freertos_task_hook(void *p_context)
 
     elite_board_init();
 
+#if DEF_ELITE_DEMO_WO_SOFTDEVICE
+    elite_board_demo();
+    for (;;)
+    {        
+    }
+#endif
+
     elite_drv_init();
 
     le_stack_Init(); // enable ble stack, but unscannable!! register "le_evt_handler" handle(CB)
@@ -116,6 +123,10 @@ static void nrf_sdh_freertos_task_hook(void *p_context)
 
     extern void le_adv_init(uint8_t ble_conn_cfg_tag);
     le_adv_init(APP_BLE_CONN_CFG_TAG); // could be scanned
+
+#if DEF_ELITE_DEMO_W_SOFTDEVICE
+    elite_board_demo();
+#endif
 }
 
 int main(void)