class Tinkerforge::BrickletPiezoBuzzer
Creates 1kHz beep
Constants
- CALLBACK_BEEP_FINISHED
This callback is triggered if a beep set by
BrickletPiezoBuzzer#beep
is finished- CALLBACK_MORSE_CODE_FINISHED
This callback is triggered if the playback of the morse code set by
BrickletPiezoBuzzer#morse_code
is finished.
Public Class Methods
Creates an object with the unique device ID uid
and adds it to the IP Connection ipcon
.
# File lib/tinkerforge/bricklet_piezo_buzzer.rb, line 33 def initialize(uid, ipcon) super uid, ipcon, DEVICE_IDENTIFIER, DEVICE_DISPLAY_NAME @api_version = [2, 0, 0] @response_expected[FUNCTION_BEEP] = RESPONSE_EXPECTED_FALSE @response_expected[FUNCTION_MORSE_CODE] = RESPONSE_EXPECTED_FALSE @response_expected[FUNCTION_GET_IDENTITY] = RESPONSE_EXPECTED_ALWAYS_TRUE @callback_formats[CALLBACK_BEEP_FINISHED] = [8, ''] @callback_formats[CALLBACK_MORSE_CODE_FINISHED] = [8, ''] @ipcon.add_device self end
Public Instance Methods
Beeps for the given duration.
# File lib/tinkerforge/bricklet_piezo_buzzer.rb, line 49 def beep(duration) check_validity send_request FUNCTION_BEEP, [duration], 'L', 8, '' end
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|
# File lib/tinkerforge/bricklet_piezo_buzzer.rb, line 78 def get_identity send_request FUNCTION_GET_IDENTITY, [], '', 33, 'Z8 Z8 k C3 C3 S' end
Sets morse code that will be played by the piezo buzzer. The morse code is given as a string consisting of “.” (dot), “-” (minus) and “ ” (space) for dits, dahs and pauses. Every other character is ignored.
For example: If you set the string “…—…”, the piezo buzzer will beep nine times with the durations “short short short long long long short short short”.
# File lib/tinkerforge/bricklet_piezo_buzzer.rb, line 62 def morse_code(morse) check_validity send_request FUNCTION_MORSE_CODE, [morse], 'Z60', 8, '' end
Registers a callback with ID id
to the block block
.
# File lib/tinkerforge/bricklet_piezo_buzzer.rb, line 83 def register_callback(id, &block) callback = block @registered_callbacks[id] = callback end