Class BrickletMultiTouch


  • public class BrickletMultiTouch
    extends Device
    Capacitive touch sensor for 12 electrodes
    • Field Detail

      • DEVICE_DISPLAY_NAME

        public static final java.lang.String DEVICE_DISPLAY_NAME
        See Also:
        Constant Field Values
      • FUNCTION_GET_TOUCH_STATE

        public static final byte FUNCTION_GET_TOUCH_STATE
        See Also:
        Constant Field Values
      • FUNCTION_SET_ELECTRODE_CONFIG

        public static final byte FUNCTION_SET_ELECTRODE_CONFIG
        See Also:
        Constant Field Values
      • FUNCTION_GET_ELECTRODE_CONFIG

        public static final byte FUNCTION_GET_ELECTRODE_CONFIG
        See Also:
        Constant Field Values
      • FUNCTION_SET_ELECTRODE_SENSITIVITY

        public static final byte FUNCTION_SET_ELECTRODE_SENSITIVITY
        See Also:
        Constant Field Values
      • FUNCTION_GET_ELECTRODE_SENSITIVITY

        public static final byte FUNCTION_GET_ELECTRODE_SENSITIVITY
        See Also:
        Constant Field Values
    • Constructor Detail

      • BrickletMultiTouch

        public BrickletMultiTouch​(java.lang.String uid,
                                  IPConnection ipcon)
        Creates an object with the unique device ID \c uid. and adds it to the IP Connection \c ipcon.
    • Method Detail

      • getTouchState

        public int getTouchState()
                          throws TinkerforgeException
        Returns the current touch state. The state is given as a bitfield. Bits 0 to 11 represent the 12 electrodes and bit 12 represents the proximity. If an electrode is touched, the corresponding bit is *true*. If a hand or similar is in proximity to the electrodes, bit 12 is *true*. Example: The state 4103 = 0x1007 = 0b1000000000111 means that electrodes 0, 1 and 2 are touched and that something is in the proximity of the electrodes. The proximity is activated with a distance of 1-2cm. An electrode is already counted as touched if a finger is nearly touching the electrode. This means that you can put a piece of paper or foil or similar on top of a electrode to build a touch panel with a professional look.
        Throws:
        TinkerforgeException
      • setElectrodeConfig

        public void setElectrodeConfig​(int enabledElectrodes)
                                throws TinkerforgeException
        Enables/disables electrodes with a bitfield (see getTouchState()). *True* enables the electrode, *false* disables the electrode. A disabled electrode will always return *false* as its state. If you don't need all electrodes you can disable the electrodes that are not needed. It is recommended that you disable the proximity bit (bit 12) if the proximity feature is not needed. This will reduce the amount of traffic that is produced by the BrickletMultiTouch.TouchStateListener listener. Disabling electrodes will also reduce power consumption. Default: 8191 = 0x1FFF = 0b1111111111111 (all electrodes and proximity feature enabled)
        Throws:
        TinkerforgeException
      • setElectrodeSensitivity

        public void setElectrodeSensitivity​(short sensitivity)
                                     throws TinkerforgeException
        Sets the sensitivity of the electrodes. An electrode with a high sensitivity will register a touch earlier then an electrode with a low sensitivity. If you build a big electrode you might need to decrease the sensitivity, since the area that can be charged will get bigger. If you want to be able to activate an electrode from further away you need to increase the sensitivity. After a new sensitivity is set, you likely want to call recalibrate() to calibrate the electrodes with the newly defined sensitivity.
        Throws:
        TinkerforgeException
      • getIdentity

        public Device.Identity getIdentity()
                                    throws TinkerforgeException
        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', 'd', 'e', 'f', 'g' or 'h' (Bricklet Port). A Bricklet connected to an :ref:`Isolator Bricklet <isolator_bricklet>` is always at position 'z'. The device identifier numbers can be found :ref:`here <device_identifier>`. |device_identifier_constant|
        Specified by:
        getIdentity in class Device
        Throws:
        TinkerforgeException