diff --git a/homeassistant/components/mysensors/climate.py b/homeassistant/components/mysensors/climate.py
index f534f96b780..dc053e60de1 100644
--- a/homeassistant/components/mysensors/climate.py
+++ b/homeassistant/components/mysensors/climate.py
@@ -156,7 +156,9 @@ class MySensorsHVAC(mysensors.device.MySensorsEntity, ClimateDevice):
                 (set_req.V_HVAC_SETPOINT_COOL, high),
             ]
         for value_type, value in updates:
-            self.gateway.set_child_value(self.node_id, self.child_id, value_type, value)
+            self.gateway.set_child_value(
+                self.node_id, self.child_id, value_type, value, ack=1
+            )
             if self.gateway.optimistic:
                 # Optimistically assume that device has changed state
                 self._values[value_type] = value
@@ -166,7 +168,7 @@ class MySensorsHVAC(mysensors.device.MySensorsEntity, ClimateDevice):
         """Set new target temperature."""
         set_req = self.gateway.const.SetReq
         self.gateway.set_child_value(
-            self.node_id, self.child_id, set_req.V_HVAC_SPEED, fan_mode
+            self.node_id, self.child_id, set_req.V_HVAC_SPEED, fan_mode, ack=1
         )
         if self.gateway.optimistic:
             # Optimistically assume that device has changed state
@@ -176,7 +178,11 @@ class MySensorsHVAC(mysensors.device.MySensorsEntity, ClimateDevice):
     async def async_set_hvac_mode(self, hvac_mode):
         """Set new target temperature."""
         self.gateway.set_child_value(
-            self.node_id, self.child_id, self.value_type, DICT_HA_TO_MYS[hvac_mode]
+            self.node_id,
+            self.child_id,
+            self.value_type,
+            DICT_HA_TO_MYS[hvac_mode],
+            ack=1,
         )
         if self.gateway.optimistic:
             # Optimistically assume that device has changed state
diff --git a/homeassistant/components/mysensors/cover.py b/homeassistant/components/mysensors/cover.py
index bb764e375f3..6c02e430ba4 100644
--- a/homeassistant/components/mysensors/cover.py
+++ b/homeassistant/components/mysensors/cover.py
@@ -43,7 +43,9 @@ class MySensorsCover(mysensors.device.MySensorsEntity, CoverDevice):
     async def async_open_cover(self, **kwargs):
         """Move the cover up."""
         set_req = self.gateway.const.SetReq
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_UP, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_UP, 1, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that cover has changed state.
             if set_req.V_DIMMER in self._values:
@@ -55,7 +57,9 @@ class MySensorsCover(mysensors.device.MySensorsEntity, CoverDevice):
     async def async_close_cover(self, **kwargs):
         """Move the cover down."""
         set_req = self.gateway.const.SetReq
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_DOWN, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_DOWN, 1, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that cover has changed state.
             if set_req.V_DIMMER in self._values:
@@ -69,7 +73,7 @@ class MySensorsCover(mysensors.device.MySensorsEntity, CoverDevice):
         position = kwargs.get(ATTR_POSITION)
         set_req = self.gateway.const.SetReq
         self.gateway.set_child_value(
-            self.node_id, self.child_id, set_req.V_DIMMER, position
+            self.node_id, self.child_id, set_req.V_DIMMER, position, ack=1
         )
         if self.gateway.optimistic:
             # Optimistically assume that cover has changed state.
@@ -79,4 +83,6 @@ class MySensorsCover(mysensors.device.MySensorsEntity, CoverDevice):
     async def async_stop_cover(self, **kwargs):
         """Stop the device."""
         set_req = self.gateway.const.SetReq
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_STOP, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_STOP, 1, ack=1
+        )
diff --git a/homeassistant/components/mysensors/light.py b/homeassistant/components/mysensors/light.py
index 3936aefab0c..8f0d0906311 100644
--- a/homeassistant/components/mysensors/light.py
+++ b/homeassistant/components/mysensors/light.py
@@ -75,7 +75,9 @@ class MySensorsLight(mysensors.device.MySensorsEntity, Light):
 
         if self._state:
             return
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_LIGHT, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_LIGHT, 1, ack=1
+        )
 
         if self.gateway.optimistic:
             # optimistically assume that light has changed state
@@ -96,7 +98,7 @@ class MySensorsLight(mysensors.device.MySensorsEntity, Light):
         brightness = kwargs[ATTR_BRIGHTNESS]
         percent = round(100 * brightness / 255)
         self.gateway.set_child_value(
-            self.node_id, self.child_id, set_req.V_DIMMER, percent
+            self.node_id, self.child_id, set_req.V_DIMMER, percent, ack=1
         )
 
         if self.gateway.optimistic:
@@ -129,7 +131,7 @@ class MySensorsLight(mysensors.device.MySensorsEntity, Light):
         if len(rgb) > 3:
             white = rgb.pop()
         self.gateway.set_child_value(
-            self.node_id, self.child_id, self.value_type, hex_color
+            self.node_id, self.child_id, self.value_type, hex_color, ack=1
         )
 
         if self.gateway.optimistic:
@@ -141,7 +143,7 @@ class MySensorsLight(mysensors.device.MySensorsEntity, Light):
     async def async_turn_off(self, **kwargs):
         """Turn the device off."""
         value_type = self.gateway.const.SetReq.V_LIGHT
-        self.gateway.set_child_value(self.node_id, self.child_id, value_type, 0)
+        self.gateway.set_child_value(self.node_id, self.child_id, value_type, 0, ack=1)
         if self.gateway.optimistic:
             # optimistically assume that light has changed state
             self._state = False
diff --git a/homeassistant/components/mysensors/switch.py b/homeassistant/components/mysensors/switch.py
index df429460541..c624aaafa34 100644
--- a/homeassistant/components/mysensors/switch.py
+++ b/homeassistant/components/mysensors/switch.py
@@ -92,7 +92,9 @@ class MySensorsSwitch(mysensors.device.MySensorsEntity, SwitchDevice):
 
     async def async_turn_on(self, **kwargs):
         """Turn the switch on."""
-        self.gateway.set_child_value(self.node_id, self.child_id, self.value_type, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, self.value_type, 1, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that switch has changed state
             self._values[self.value_type] = STATE_ON
@@ -100,7 +102,9 @@ class MySensorsSwitch(mysensors.device.MySensorsEntity, SwitchDevice):
 
     async def async_turn_off(self, **kwargs):
         """Turn the switch off."""
-        self.gateway.set_child_value(self.node_id, self.child_id, self.value_type, 0)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, self.value_type, 0, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that switch has changed state
             self._values[self.value_type] = STATE_OFF
@@ -129,7 +133,9 @@ class MySensorsIRSwitch(MySensorsSwitch):
         self.gateway.set_child_value(
             self.node_id, self.child_id, self.value_type, self._ir_code
         )
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_LIGHT, 1)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_LIGHT, 1, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that switch has changed state
             self._values[self.value_type] = self._ir_code
@@ -141,7 +147,9 @@ class MySensorsIRSwitch(MySensorsSwitch):
     async def async_turn_off(self, **kwargs):
         """Turn the IR switch off."""
         set_req = self.gateway.const.SetReq
-        self.gateway.set_child_value(self.node_id, self.child_id, set_req.V_LIGHT, 0)
+        self.gateway.set_child_value(
+            self.node_id, self.child_id, set_req.V_LIGHT, 0, ack=1
+        )
         if self.gateway.optimistic:
             # Optimistically assume that switch has changed state
             self._values[set_req.V_LIGHT] = STATE_OFF