diff --git a/tests/test_xyscreens.py b/tests/test_xyscreens.py
index ca86ab0..c3aa878 100644
--- a/tests/test_xyscreens.py
+++ b/tests/test_xyscreens.py
@@ -118,7 +118,7 @@ def test_position_halfway(self):
         screen = XYScreens(_SERIAL_PORT, 10, 10)
         screen.down()
         time.sleep(5)
-        self.assertAlmostEqual(50.0, screen.position(), delta=0.5)
+        self.assertAlmostEqual(50.0, screen.position(), delta=0.3)
 
     def test_change_direction_down(self):
         screen = XYScreens(_SERIAL_PORT, 10, 10, 100)
@@ -143,14 +143,14 @@ def test_set_position_downward(self):
         screen.set_position(50.0)
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.STOPPED, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
 
     def test_set_position_upward(self):
         screen = XYScreens(_SERIAL_PORT, 10, 10, 100.0)
         screen.set_position(50.0)
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.STOPPED, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
 
     @async_test
     async def test_async_down(self):
@@ -189,6 +189,7 @@ async def test_async_state_closing(self):
         screen = XYScreens(_SERIAL_PORT, 60, 60, 100)
         await screen.async_up()
         self.assertIs(XYScreensState.UPWARD, screen.state())
+        await screen.async_stop()
 
     @async_test
     async def test_async_state_stopped(self):
@@ -203,6 +204,7 @@ async def test_async_state_downward(self):
         screen = XYScreens(_SERIAL_PORT, 10, 10)
         await screen.async_down()
         self.assertIs(XYScreensState.DOWNWARD, screen.state())
+        await screen.async_stop()
 
     @async_test
     async def test_async_state_down(self):
@@ -230,7 +232,8 @@ async def test_async_position_halfway(self):
         screen = XYScreens(_SERIAL_PORT, 10, 10)
         await screen.async_down()
         await asyncio.sleep(5)
-        self.assertAlmostEqual(50.0, screen.position(), delta=0.5)
+        self.assertAlmostEqual(50.0, screen.position(), delta=0.3)
+        await screen.async_stop()
 
     @async_test
     async def test_async_change_direction_down(self):
@@ -240,7 +243,8 @@ async def test_async_change_direction_down(self):
         await screen.async_down()
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.DOWNWARD, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
+        await screen.async_stop()
 
     @async_test
     async def test_async_change_direction_up(self):
@@ -250,7 +254,8 @@ async def test_async_change_direction_up(self):
         await screen.async_up()
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.UPWARD, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
+        await screen.async_stop()
 
     @async_test
     async def test_async_set_position_downward(self):
@@ -259,7 +264,7 @@ async def test_async_set_position_downward(self):
         await asyncio.sleep(5.1)
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.STOPPED, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
 
     @async_test
     async def test_async_set_position_upward(self):
@@ -268,7 +273,18 @@ async def test_async_set_position_upward(self):
         await asyncio.sleep(5.1)
         (state, position) = screen.update_status()
         self.assertIs(XYScreensState.STOPPED, state)
-        self.assertAlmostEqual(50.0, position, delta=0.5)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
+
+    @async_test
+    async def test_async_set_position_stop(self):
+        """Test stopping the screen while it is moving to a given position."""
+        screen = XYScreens(_SERIAL_PORT, 10, 10)
+        await screen.async_down()
+        await asyncio.sleep(5)
+        await screen.async_stop()
+        (state, position) = screen.update_status()
+        self.assertIs(XYScreensState.STOPPED, state)
+        self.assertAlmostEqual(50.0, position, delta=0.3)
 
     def test_restore_position_up(self):
         screen = XYScreens(_SERIAL_PORT, 60)