diff --git a/Core/Inc/yunhorn_sts_sensors.h b/Core/Inc/yunhorn_sts_sensors.h
index 727e1b1..8ebbf36 100644
--- a/Core/Inc/yunhorn_sts_sensors.h
+++ b/Core/Inc/yunhorn_sts_sensors.h
@@ -684,8 +684,7 @@ void OnSensor3BStateChanged(void);
 void OnSensor3CStateChanged(void);
 void OnSensor4StateChanged(void);
 uint32_t STS_Get_Date_Time_Stamp(void);//uint32_t *time_stamp, uint8_t *datetimestamp);
-void STS_SENSOR_Power_ON(uint8_t cnt);
-void STS_SENSOR_Power_OFF(uint8_t cnt);
+
 void STS_SENSOR_MEMS_Reset(uint8_t cnt);
 
 void STS_PRESENCE_SENSOR_NVM_CFG(void);
diff --git a/Core/Src/yunhorn_sts_process.c b/Core/Src/yunhorn_sts_process.c
index 134bb2a..d348138 100644
--- a/Core/Src/yunhorn_sts_process.c
+++ b/Core/Src/yunhorn_sts_process.c
@@ -963,32 +963,6 @@ uint8_t STS_SENSOR_MEMS_Get_ID(uint8_t *devID)
 
 }
 
-void STS_SENSOR_Power_ON(uint8_t cnt)
-{
-	switch (cnt) {
-		case 0:
-		case 1:
-		case 2:
-			PME_ON;
-		break;
-		default:
-		break;
-	}
-
-}
-void STS_SENSOR_Power_OFF(uint8_t cnt)
-{
-	switch (cnt) {
-		case 0:
-		case 1:
-		case 2:
-			PME_OFF;
-		break;
-		default:
-		break;
-	}
-}
-
 void STS_SENSOR_MEMS_Reset(uint8_t cnt)
 {
 	switch (cnt) {