All Classes and Interfaces

Class	Description
Button	Mapping of CrowPi buttons to the respective BCM pins
ButtonComponent	Implementation of the CrowPi buttons using GPIO with Pi4J
ButtonComponent.ButtonState	All available states reported by the button component.
ButtonMatrixComponent	Implementation of the CrowPi button matrix using GPIO with Pi4J
BuzzerComponent	Implementation of the CrowPi buzzer using PWM with Pi4J
ByteHelpers	This class provides various helper methods for dealing with byte arrays.
Component
CrowPiPlatform	Custom Pi4J platform class which ensures that PiGPIO is used for interacting with the hardware components.
DigitalEventListener<V>	Generic implementation of EventListener for Pi4J DigitalInput instances.
DigitalEventProvider<V>	Generic digital event provider with default implementation for digital components.
Direction
EventHandler<V>	Generic functional interface used for for event handlers.
EventListener	Generic event listener interface for easy removal of existing listeners.
EventProvider<L extends EventListener,V>	Generic event provider interface for components which expose the ability to add or remove event listeners.
FlappingEventProvider<V>	Generic event provider to trigger a SimpleEventHandler once a value has flapped between two values for a couple times.
HT16K33	Implementation of HT16K33 LED driver chip used for segment displays.
HumiTempComponent	This example demonstrates the temperature and humidity component on the CrowPi.
InstanceAlreadyRunningException
IrReceiverComponent	Implementation of the CrowPi IR receiver /not/ using GPIO with Pi4J
IrReceiverComponent.Key	Enumeration which represents all known keycodes for the bundled CrowPi IR remote
IrReceiverComponent.PollerProcess	Custom interface as an alternative to the Java native Process interface.
IrReceiverComponent.PollerProcessFactory	Functional interface for a poller process factory which creates new IrReceiverComponent.PollerProcess instances on demand.
LcdDisplayComponent	This class provides a simple usage of a LCD Display with Pi4J and the CrowPi.
LcdDisplayComponent.Symbol	Enumeration with most important and used symbols.
LedMatrixComponent	Implementation of the CrowPi LED matrix using SPI with Pi4J
LedMatrixComponent.ScrollMode	Specifies which mode should be used while scrolling the LED matrix.
LedMatrixComponent.Symbol	Mapping of various symbols to their respective 8x8 encoding.
LightSensorComponent	Implementation of the CrowPi light sensor using I2C with Pi4J
Logger
MAX7219	Implementation of MAX7219 driver chip used for 8x8 LED matrix displays.
MCP23008	Class to provide IO interfacing with MCP23008
MeasurementException	Generic class used for indicating measurement failures for various components
MFRC522	Implementation of MFRC522 RFID Reader/Writer used for interacting with RFID cards.
Mifare1K	Implementation of MIFARE Classic 1K cards with 16 sectors with 4 blocks (16 bytes) each.
MifareKey	Helper class for authenticating against MIFARE cards using either Key A or Key B.
MifareKey.Type	All available key types on MIFARE cards
Note	Mapping of well-known piano keys 1 - 100 to their appropriate frequency in Hz Values based on https://en.wikipedia.org/wiki/Piano_key_frequencies#List
PcdError	Error types which can be signalled by the PCD
PirMotionSensorComponent	Implementation of the CrowPi PIR motion sensor using GPIO with Pi4J
PirMotionSensorComponent.MotionState	All available states reported by the PIR motion sensor component.
RelayComponent	Implementation of the CrowPi Relay using GPIO with Pi4J
RfidCard	Abstract base class to be implemented by all supported RFID cards.
RfidCardType	Known RFID card types based on SAK detection
RfidCardUid	UID of RFID PICC / card which contains UID + SAK
RfidCollisionException	Collision exception for the RFID component based on RfidException.
RfidComponent	Implementation of the CrowPi RFID component using SPI with Pi4J
RfidException	Base exception for indicating failures within the RFID component
RfidTimeoutException	Timeout exception for the RFID component based on RfidException.
RfidUnsupportedCardException	Unsupported card exception for the RFID component based on RfidException.
ServoMotorComponent	Implementation of the CrowPi Servo Motor using PWM with Pi4J
SevenSegmentComponent	Implementation of the CrowPi seven-segment display using I2C with Pi4J
SevenSegmentComponent.Segment	Mapping of segments to their respective bit according to the HT16K33.
SimpleEventHandler	Generic functional interface for simple event handlers, which are event handlers without a parameter.
SimpleEventProvider<E>	Generic simple event provider with empty default implementation.
SoundSensorComponent	Implementation of the CrowPi sound sensor using GPIO with Pi4J
SoundSensorComponent.SoundState	All available states reported by the sound sensor component.
StepMotorComponent	Implementation of the CrowPi Step Motor using GPIO with Pi4J
TiltSensorComponent	Implementation of the CrowPi tilt sensor using GPIO with Pi4J
TiltSensorComponent.TiltState	All available states reported by the tilt sensor component.
TouchSensorComponent	Implementation of the CrowPi touch sensor using GPIO with Pi4J
TouchSensorComponent.TouchState	All available states reported by the touch sensor component.
UltrasonicDistanceSensorComponent	Implementation of the CrowPi ultrasonic distance sensor (HC-SR04) using GPIO with Pi4J
VibrationMotorComponent	Implementation of the CrowPi vibration motor using GPIO with Pi4J