diff --git a/README.rst b/README.rst
index 929827e..3c96315 100644
--- a/README.rst
+++ b/README.rst
@@ -35,7 +35,7 @@ Install
 
 First, install the dependencies::
 
-    sudo apt-get install python-pip python3-pip python-w1thermsensor python3-w1thermsensor python-spidev python3-spidev
+    sudo apt-get install python-pip python3-pip python-spidev python3-spidev
 
 Install with pip::
 
diff --git a/docs/index.md b/docs/index.md
index 71cfd4f..321f6b3 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -34,7 +34,7 @@ colour LEDs, robotics kits and more.
 First, install the dependencies:
 
 ```python
-sudo apt-get install python-pip python3-pip python-w1thermsensor python3-w1thermsensor python-spidev python3-spidev
+sudo apt-get install python-pip python3-pip python-spidev python3-spidev
 ```
 
 Install with pip:
diff --git a/docs/inputs.md b/docs/inputs.md
index 9f3386c..1638aeb 100644
--- a/docs/inputs.md
+++ b/docs/inputs.md
@@ -175,42 +175,6 @@ LightSensor(pin=None, queue_len=5, charge_time_limit=10,
 | `when_light`     | A reference to the function to be called when light is detected.      | `None` or Function |
 | `when_dark`      | A reference to the function to be called when darkness is detected.   | `None` or Function |
 
-## Temperature Sensor
-
-One-wire Digital Temperature Sensor.
-
-### Wiring
-
-...
-
-### Code
-
-Ensure the `TemperatureSensor` class is imported at the top of the file:
-
-```python
-from gpiozero import TemperatureSensor
-```
-
-Create a `TemperatureSensor` object:
-
-```python
-temp = TemperatureSensor()
-```
-
-#### Initialisation options
-
-...
-
-#### Methods
-
-...
-
-#### Properties
-
-| Property | Description | Type |
-| -------- | ----------- | ---- |
-| `value`  | The current temperature reading in degrees Celsius. | Float |
-
 ## MCP3008 Analogue-to-Digital Converter
 
 MCP3008 ADC (Analogue-to-Digital converter).
diff --git a/docs/notes.md b/docs/notes.md
index a2e1bce..e2a3969 100644
--- a/docs/notes.md
+++ b/docs/notes.md
@@ -165,19 +165,20 @@ attached to:
 my_button = Button(2)
 ```
 
-Some classes require no arguments due to the nature of the device:
+Some classes have multiple arguments, usually with some being optional. When
+arguments are optional, common default values are used. The following example:
 
 ```python
-temp = TemperatureSensor()
+my_button = Button(2)
 ```
 
-Others have multiple arguments, usually with some being optional:
+is equivalent to:
 
 ```python
-temp = TemperatureSensor()
+my_button = Button(2, True)
 ```
 
-When arguments are optional, common default values are used.
+because the second argument defaults to `True`.
 
 Arguments can be given unnamed, as long as they are in order:
 
diff --git a/gpiozero/__init__.py b/gpiozero/__init__.py
index b505961..f0a6f97 100644
--- a/gpiozero/__init__.py
+++ b/gpiozero/__init__.py
@@ -3,7 +3,7 @@ from __future__ import (
     print_function,
     absolute_import,
     division,
-    )
+)
 
 from .devices import (
     GPIODeviceClosed,
@@ -16,7 +16,6 @@ from .input_devices import (
     Button,
     MotionSensor,
     LightSensor,
-    TemperatureSensor,
     AnalogInputDevice,
     MCP3008,
     MCP3004,
diff --git a/gpiozero/input_devices.py b/gpiozero/input_devices.py
index c365881..e686c6a 100644
--- a/gpiozero/input_devices.py
+++ b/gpiozero/input_devices.py
@@ -12,7 +12,6 @@ from time import sleep, time
 from threading import Event
 
 from RPi import GPIO
-from w1thermsensor import W1ThermSensor
 from spidev import SpiDev
 
 from .devices import (
@@ -499,15 +498,6 @@ LightSensor.wait_for_light = LightSensor.wait_for_active
 LightSensor.wait_for_dark = LightSensor.wait_for_inactive
 
 
-class TemperatureSensor(W1ThermSensor):
-    """
-    A Digital Temperature Sensor.
-    """
-    @property
-    def value(self):
-        return self.get_temperature()
-
-
 class AnalogInputDevice(CompositeDevice):
     """
     Represents an analog input device connected to SPI (serial interface).
@@ -606,4 +596,3 @@ class MCP3004(MCP3008):
         if not 0 <= channel < 4:
             raise InputDeviceError('channel must be between 0 and 3')
         super(MCP3004, self).__init__(device, channel)
-
diff --git a/gpiozero/output_devices.py b/gpiozero/output_devices.py
index 0a85915..920298a 100644
--- a/gpiozero/output_devices.py
+++ b/gpiozero/output_devices.py
@@ -3,7 +3,7 @@ from __future__ import (
     print_function,
     absolute_import,
     division,
-    )
+)
 
 import warnings
 from time import sleep
@@ -19,7 +19,7 @@ from .devices import (
     GPIOThread,
     CompositeDevice,
     SourceMixin,
-    )
+)
 
 
 class OutputDeviceError(GPIODeviceError):
@@ -439,4 +439,3 @@ class Motor(SourceMixin, CompositeDevice):
         """
         self._forward.off()
         self._backward.off()
-
diff --git a/setup.py b/setup.py
index d526e98..56d6f5d 100644
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,6 @@ __keywords__ = [
 
 __requires__ = [
     'RPi.GPIO',
-    'w1thermsensor',
     'spidev',
 ]