new GPIODevice(pin)
- Source:
Represents a generic GPIO device and provides the services common to all single-pin GPIO devices
(like ensuring two GPIO devices do no share a Pin).
Parameters:
| Name | Type | Description |
|---|---|---|
pin |
int | Pin | The GPIO pin (in BCM numbering) or a instance of Pin that the device is connected to. |
Throws:
-
-
- If pin is 'undefined'
- Type
- GPIOPinMissing
-
-
-
- If the pin is already in use by another device
- Type
- GPIOPinInUse
-
Extends
Methods
close()
- Source:
- Overrides:
Close the device and remove the pin allocation allowing it to be reused.
closed() → {boolean}
- Source:
Returns:
- Is ``true`` is no pin is allocated.
- Type
- boolean
is_active() → {boolean}
- Source:
- Overrides:
Returns:
- Is true is the device value is currently set.
- Type
- boolean
pin() → {undefined|*|int|Pin}
- Source:
Returns:
- The Pin that the device is connected to. This will be ``undefined``
if the device has been closed (see the :meth:`close` method). When dealing with GPIO pins, query ``pin.number``
to discover the GPIO pin (in BCM numbering) that the device is connected to.
- Type
- undefined | * | int | Pin
toString() → {string}
- Source:
Returns:
- Description of the device.
- Type
- string
value() → {int|Boolean}
- Source:
- Overrides:
Returns:
- Current value of the pin.
- Type
- int | Boolean