File Information
Library: IoT/Devices
Package: Devices
Header: IoT/Devices/IO.h
Description
The interface for general purpose input/output (GPIO) ports.
This class represents a single GPIO pin. Mapping to physical pins is configured when setting up the specific IO implementation class, typically using a configuration file.
Implementations supporting dynamically changing pin directions should expose a string property named "direction" that takes the values "in" and "out".
Inheritance
Direct Base Classes: Device
All Base Classes: Device
Member Summary
Member Functions: set, state, toggle
Inherited Functions: getFeature, getPropertyBool, getPropertyDouble, getPropertyInt, getPropertyInt16, getPropertyInt64, getPropertyString, getPropertyTimestamp, hasFeature, hasProperty, setFeature, setPropertyBool, setPropertyDouble, setPropertyInt, setPropertyInt16, setPropertyInt64, setPropertyString, setPropertyTimestamp
Constructors
IO
IO();
Creates the IO.
Destructor
~IO 
~IO();
Destroys the IO.
Member Functions
set
virtual void set(
bool state
) = 0;
Sets the state of an output pin to the given state.
state
virtual bool state() const = 0;
Returns the current state of the pin.
toggle
virtual bool toggle() = 0;
Toggles the state of an output pin and returns the new state.
Variables
stateChanged
Poco::BasicEvent < const bool > stateChanged;
Fired when the state of the interrupt-capable input pin has changed.
For this event to be fired, the I/O device must support interrupt-capable input pins, and those pins must be configured to trigger interrupts, by an implementation-specific means.
Only a pin configured as input will trigger the event.