Java - Remote Switch Bricklet 2.0

This is the description of the Java API bindings for the Remote Switch Bricklet 2.0. General information and technical specifications for the Remote Switch Bricklet 2.0 are summarized in its hardware description.

An installation guide for the Java API bindings is part of their general description.

Examples

The example code below is Public Domain (CC0 1.0).

Switch Socket

Download (ExampleSwitchSocket.java)

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import com.tinkerforge.IPConnection;
import com.tinkerforge.BrickletRemoteSwitchV2;

public class ExampleSwitchSocket {
    private static final String HOST = "localhost";
    private static final int PORT = 4223;

    // Change XYZ to the UID of your Remote Switch Bricklet 2.0
    private static final String UID = "XYZ";

    // Note: To make the example code cleaner we do not handle exceptions. Exceptions
    //       you might normally want to catch are described in the documentation
    public static void main(String args[]) throws Exception {
        IPConnection ipcon = new IPConnection(); // Create IP connection
        BrickletRemoteSwitchV2 rs = new BrickletRemoteSwitchV2(UID, ipcon); // Create device object

        ipcon.connect(HOST, PORT); // Connect to brickd
        // Don't use device before ipcon is connected

        // Switch on a type A socket with house code 17 and receiver code 1.
        // House code 17 is 10001 in binary (least-significant bit first)
        // and means that the DIP switches 1 and 5 are on and 2-4 are off.
        // Receiver code 1 is 10000 in binary (least-significant bit first)
        // and means that the DIP switch A is on and B-E are off.
        rs.switchSocketA(17, 1, BrickletRemoteSwitchV2.SWITCH_TO_ON);

        System.out.println("Press key to exit"); System.in.read();
        ipcon.disconnect();
    }
}

Remote Callback

Download (ExampleRemoteCallback.java)

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import com.tinkerforge.IPConnection;
import com.tinkerforge.BrickletRemoteSwitchV2;

public class ExampleRemoteCallback {
    private static final String HOST = "localhost";
    private static final int PORT = 4223;

    // Change XYZ to the UID of your Remote Switch Bricklet 2.0
    private static final String UID = "XYZ";

    // Note: To make the example code cleaner we do not handle exceptions. Exceptions
    //       you might normally want to catch are described in the documentation
    public static void main(String args[]) throws Exception {
        IPConnection ipcon = new IPConnection(); // Create IP connection
        BrickletRemoteSwitchV2 rs = new BrickletRemoteSwitchV2(UID, ipcon); // Create device object

        ipcon.connect(HOST, PORT); // Connect to brickd
        // Don't use device before ipcon is connected

        // Configure to receive from remote type A with minimum repeats set to 1 and enable callback
        rs.setRemoteConfiguration(BrickletRemoteSwitchV2.REMOTE_TYPE_A, 1, true);

        // Add remote status a listener
        rs.addRemoteStatusAListener(new BrickletRemoteSwitchV2.RemoteStatusAListener() {
            public void remoteStatusA(int houseCode, int receiverCode, int switchTo,
                                      int repeats) {
                System.out.println("House Code: " + houseCode);
                System.out.println("Receiver Code: " + receiverCode);
                System.out.println("Switch To: " + switchTo);
                System.out.println("Repeats: " + repeats);
                System.out.println("");
            }
        });

        System.out.println("Press key to exit"); System.in.read();
        ipcon.disconnect();
    }
}

API

Generally, every method of the Java bindings that returns a value can throw a TimeoutException. This exception gets thrown if the device did not respond. If a cable based connection is used, it is unlikely that this exception gets thrown (assuming nobody unplugs the device). However, if a wireless connection is used, timeouts will occur if the distance to the device gets too big.

Beside the TimeoutException there is also a NotConnectedException that is thrown if a method needs to communicate with the device while the IP Connection is not connected.

Since Java does not support multiple return values and return by reference is not possible for primitive types, we use small classes that only consist of member variables. The member variables of the returned objects are described in the corresponding method descriptions.

The package for all Brick/Bricklet bindings and the IP Connection is com.tinkerforge.*

All methods listed below are thread-safe.

Basic Functions

public class BrickletRemoteSwitchV2(String uid, IPConnection ipcon)

Creates an object with the unique device ID uid:

BrickletRemoteSwitchV2 remoteSwitchV2 = new BrickletRemoteSwitchV2("YOUR_DEVICE_UID", ipcon);

This object can then be used after the IP Connection is connected (see examples above).

public int getSwitchingState()

Returns the current switching state. If the current state is busy, the Bricklet is currently sending a code to switch a socket. It will not accept any calls of switch socket functions until the state changes to ready.

How long the switching takes is dependent on the number of repeats, see setRepeats().

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCHING_STATE_READY = 0
  • BrickletRemoteSwitchV2.SWITCHING_STATE_BUSY = 1
public void switchSocketA(int houseCode, int receiverCode, int switchTo)

To switch a type A socket you have to give the house code, receiver code and the state (on or off) you want to switch to.

The house code and receiver code have a range of 0 to 31 (5bit).

A detailed description on how you can figure out the house and receiver code can be found here.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1
public void switchSocketB(long address, int unit, int switchTo)

To switch a type B socket you have to give the address, unit and the state (on or off) you want to switch to.

The address has a range of 0 to 67108863 (26bit) and the unit has a range of 0 to 15 (4bit). To switch all devices with the same address use 255 for the unit.

A detailed description on how you can teach a socket the address and unit can be found here.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1
public void dimSocketB(long address, int unit, int dimValue)

To control a type B dimmer you have to give the address, unit and the dim value you want to set the dimmer to.

The address has a range of 0 to 67108863 (26bit), the unit and the dim value has a range of 0 to 15 (4bit).

A detailed description on how you can teach a dimmer the address and unit can be found here.

public void switchSocketC(char systemCode, int deviceCode, int switchTo)

To switch a type C socket you have to give the system code, device code and the state (on or off) you want to switch to.

The system code has a range of 'A' to 'P' (4bit) and the device code has a range of 1 to 16 (4bit).

A detailed description on how you can figure out the system and device code can be found here.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1
public void setRemoteConfiguration(int remoteType, int minimumRepeats, boolean callbackEnabled)

Sets the configuration for receiving data from a remote of type A, B or C.

  • Remote Type: A, B or C depending on the type of remote you want to receive.
  • Minimum Repeats: The minimum number of repeated data packets until the listener is triggered (if enabled).
  • Listener Enabled: Enable or disable listener (see RemoteStatusAListener listener, RemoteStatusBListener listener and RemoteStatusCListener listener).

Default is ('A', 2, false).

The following constants are available for this function:

  • BrickletRemoteSwitchV2.REMOTE_TYPE_A = 0
  • BrickletRemoteSwitchV2.REMOTE_TYPE_B = 1
  • BrickletRemoteSwitchV2.REMOTE_TYPE_C = 2
public BrickletRemoteSwitchV2.RemoteConfiguration getRemoteConfiguration()

Returns the remote configuration as set by setRemoteConfiguration()

The following constants are available for this function:

  • BrickletRemoteSwitchV2.REMOTE_TYPE_A = 0
  • BrickletRemoteSwitchV2.REMOTE_TYPE_B = 1
  • BrickletRemoteSwitchV2.REMOTE_TYPE_C = 2

The returned object has the public member variables int remoteType, int minimumRepeats and boolean callbackEnabled.

public BrickletRemoteSwitchV2.RemoteStatusA getRemoteStatusA()

Returns the house code, receiver code, switch state (on/off) and number of repeats for remote type A.

Repeats == 0 means there was no button press. Repeats >= 1 means there was a button press with the specified house/receiver code. The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number.

Use the listener to get this data automatically when a button is pressed, see setRemoteConfiguration() and RemoteStatusAListener listener.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1

The returned object has the public member variables int houseCode, int receiverCode, int switchTo and int repeats.

public BrickletRemoteSwitchV2.RemoteStatusB getRemoteStatusB()

Returns the address (unique per remote), unit (button number), switch state (on/off) and number of repeats for remote type B.

If the remote supports dimming the dim value is used instead of the switch state.

If repeats=0 there was no button press. If repeats >= 1 there was a button press with the specified address/unit. The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number.

Use the listener to get this data automatically when a button is pressed, see setRemoteConfiguration() and RemoteStatusBListener listener.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1

The returned object has the public member variables long address, int unit, int switchTo, int dimValue and int repeats.

public BrickletRemoteSwitchV2.RemoteStatusC getRemoteStatusC()

Returns the system code, device code, switch state (on/off) and number of repeats for remote type C.

If repeats=0 there was no button press. If repeats >= 1 there was a button press with the specified system/device code. The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number.

Use the listener to get this data automatically when a button is pressed, see setRemoteConfiguration() and RemoteStatusCListener listener.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1

The returned object has the public member variables char systemCode, int deviceCode, int switchTo and int repeats.

Advanced Functions

public void setRepeats(int repeats)

Sets the number of times the code is send when one of the Switch Socket functions is called. The repeats basically correspond to the amount of time that a button of the remote is pressed.

Some dimmers are controlled by the length of a button pressed, this can be simulated by increasing the repeats.

The default value is 5.

public int getRepeats()

Returns the number of repeats as set by setRepeats().

public int[] getAPIVersion()

Returns the version of the API definition (major, minor, revision) implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.

public boolean getResponseExpected(int functionId)

Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.

For getter functions this is enabled by default and cannot be disabled, because those functions will always send a response. For listener configuration functions it is enabled by default too, but can be disabled by setResponseExpected(). For setter functions it is disabled by default and can be enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

See setResponseExpected() for the list of function ID constants available for this function.

public void setResponseExpected(int functionId, boolean responseExpected)

Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and listener configuration functions (default value: true). For getter functions it is always enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

The following function ID constants are available for this function:

  • BrickletRemoteSwitchV2.FUNCTION_SET_REPEATS = 3
  • BrickletRemoteSwitchV2.FUNCTION_SWITCH_SOCKET_A = 5
  • BrickletRemoteSwitchV2.FUNCTION_SWITCH_SOCKET_B = 6
  • BrickletRemoteSwitchV2.FUNCTION_DIM_SOCKET_B = 7
  • BrickletRemoteSwitchV2.FUNCTION_SWITCH_SOCKET_C = 8
  • BrickletRemoteSwitchV2.FUNCTION_SET_REMOTE_CONFIGURATION = 9
  • BrickletRemoteSwitchV2.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
  • BrickletRemoteSwitchV2.FUNCTION_SET_STATUS_LED_CONFIG = 239
  • BrickletRemoteSwitchV2.FUNCTION_RESET = 243
  • BrickletRemoteSwitchV2.FUNCTION_WRITE_UID = 248
public void setResponseExpectedAll(boolean responseExpected)

Changes the response expected flag for all setter and listener configuration functions of this device at once.

public BrickletRemoteSwitchV2.SPITFPErrorCount getSPITFPErrorCount()

Returns the error count for the communication between Brick and Bricklet.

The errors are divided into

  • ACK checksum errors,
  • message checksum errors,
  • framing errors and
  • overflow errors.

The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.

The returned object has the public member variables long errorCountAckChecksum, long errorCountMessageChecksum, long errorCountFrame and long errorCountOverflow.

public int setBootloaderMode(int mode)

Sets the bootloader mode and returns the status after the requested mode change was instigated.

You can change from bootloader mode to firmware mode and vice versa. A change from bootloader mode to firmware mode will only take place if the entry function, device identifier and CRC are present and correct.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_BOOTLOADER = 0
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE = 1
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_OK = 0
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_INVALID_MODE = 1
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_NO_CHANGE = 2
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_ENTRY_FUNCTION_NOT_PRESENT = 3
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_DEVICE_IDENTIFIER_INCORRECT = 4
  • BrickletRemoteSwitchV2.BOOTLOADER_STATUS_CRC_MISMATCH = 5
public int getBootloaderMode()

Returns the current bootloader mode, see setBootloaderMode().

The following constants are available for this function:

  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_BOOTLOADER = 0
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE = 1
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
  • BrickletRemoteSwitchV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4
public void setWriteFirmwarePointer(long pointer)

Sets the firmware pointer for writeFirmware(). The pointer has to be increased by chunks of size 64. The data is written to flash every 4 chunks (which equals to one page of size 256).

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

public int writeFirmware(int[] data)

Writes 64 Bytes of firmware at the position as written by setWriteFirmwarePointer() before. The firmware is written to flash every 4 chunks.

You can only write firmware in bootloader mode.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

public void setStatusLEDConfig(int config)

Sets the status LED configuration. By default the LED shows communication traffic between Brick and Bricklet, it flickers once for every 10 received data packets.

You can also turn the LED permanently on/off or show a heartbeat.

If the Bricklet is in bootloader mode, the LED is will show heartbeat by default.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_OFF = 0
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_ON = 1
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_SHOW_STATUS = 3
public int getStatusLEDConfig()

Returns the configuration as set by setStatusLEDConfig()

The following constants are available for this function:

  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_OFF = 0
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_ON = 1
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BrickletRemoteSwitchV2.STATUS_LED_CONFIG_SHOW_STATUS = 3
public int getChipTemperature()

Returns the temperature in °C as measured inside the microcontroller. The value returned is not the ambient temperature!

The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.

public void reset()

Calling this function will reset the Bricklet. All configurations will be lost.

After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!

public void writeUID(long uid)

Writes a new UID into flash. If you want to set a new UID you have to decode the Base58 encoded UID string into an integer first.

We recommend that you use Brick Viewer to change the UID.

public long readUID()

Returns the current UID as an integer. Encode as Base58 to get the usual string version.

public BrickletRemoteSwitchV2.Identity getIdentity()

Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be 'a', 'b', 'c' or 'd'.

The device identifier numbers can be found here. There is also a constant for the device identifier of this Bricklet.

The returned object has the public member variables String uid, String connectedUid, char position, int[] hardwareVersion, int[] firmwareVersion and int deviceIdentifier.

Listeners

Listeners can be registered to receive time critical or recurring data from the device. The registration is done with "add*Listener" functions of the device object.

The parameter is a listener class object, for example:

device.addExampleListener(new BrickletRemoteSwitchV2.ExampleListener() {
    public void property(int value) {
        System.out.println("Value: " + value);
    }
});

The available listener classes with inherent methods to be overwritten are described below. It is possible to add several listeners and to remove them with the corresponding "remove*Listener" function.

Note

Using listeners for recurring events is always preferred compared to using getters. It will use less USB bandwidth and the latency will be a lot better, since there is no round trip time.

public class BrickletRemoteSwitchV2.SwitchingDoneListener()

This listener can be added with the addSwitchingDoneListener() function. An added listener can be removed with the removeSwitchingDoneListener() function.

public void switchingDone()

This listener is triggered whenever the switching state changes from busy to ready, see getSwitchingState().

public class BrickletRemoteSwitchV2.RemoteStatusAListener()

This listener can be added with the addRemoteStatusAListener() function. An added listener can be removed with the removeRemoteStatusAListener() function.

public void remoteStatusA(int houseCode, int receiverCode, int switchTo, int repeats)

Returns the house code, receiver code, switch state (on/off) and number of repeats for remote type A.

The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number. The listener is triggered with every repeat.

You have to enable the listener with setRemoteConfiguration(). The number of repeats that you can set in the configuration is the minimum number of repeats that have to be seen before the listener is triggered for the first time.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1
public class BrickletRemoteSwitchV2.RemoteStatusBListener()

This listener can be added with the addRemoteStatusBListener() function. An added listener can be removed with the removeRemoteStatusBListener() function.

public void remoteStatusB(long address, int unit, int switchTo, int dimValue, int repeats)

Returns the address (unique per remote), unit (button number), switch state (on/off) and number of repeats for remote type B.

If the remote supports dimming the dim value is used instead of the switch state.

The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number. The listener is triggered with every repeat.

You have to enable the listener with setRemoteConfiguration(). The number of repeats that you can set in the configuration is the minimum number of repeats that have to be seen before the listener is triggered for the first time.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1
public class BrickletRemoteSwitchV2.RemoteStatusCListener()

This listener can be added with the addRemoteStatusCListener() function. An added listener can be removed with the removeRemoteStatusCListener() function.

public void remoteStatusC(char systemCode, int deviceCode, int switchTo, int repeats)

Returns the system code, device code, switch state (on/off) and number of repeats for remote type C.

The repeats are the number of received identical data packets. The longer the button is pressed, the higher the repeat number. The listener is triggered with every repeat.

You have to enable the listener with setRemoteConfiguration(). The number of repeats that you can set in the configuration is the minimum number of repeats that have to be seen before the listener is triggered for the first time.

The following constants are available for this function:

  • BrickletRemoteSwitchV2.SWITCH_TO_OFF = 0
  • BrickletRemoteSwitchV2.SWITCH_TO_ON = 1

Constants

public static final int BrickletRemoteSwitchV2.DEVICE_IDENTIFIER

This constant is used to identify a Remote Switch Bricklet 2.0.

The getIdentity() function and the EnumerateListener listener of the IP Connection have a deviceIdentifier parameter to specify the Brick's or Bricklet's type.

public static final String BrickletRemoteSwitchV2.DEVICE_DISPLAY_NAME

This constant represents the human readable name of a Remote Switch Bricklet 2.0.