NAME

Tinkerforge::BrickletAmbientLightV2 - Measures ambient light up to 64000lux

CONSTANTS

DEVICE_IDENTIFIER

This constant is used to identify a Ambient Light Bricklet 2.0.

The get_identity() subroutine and the CALLBACK_ENUMERATE callback of the IP Connection have a device_identifier parameter to specify the Brick's or Bricklet's type.

DEVICE_DISPLAY_NAME

This constant represents the display name of a Ambient Light Bricklet 2.0.

CALLBACK_ILLUMINANCE

This constant is used with the register_callback() subroutine to specify the CALLBACK_ILLUMINANCE callback.

CALLBACK_ILLUMINANCE_REACHED

This constant is used with the register_callback() subroutine to specify the CALLBACK_ILLUMINANCE_REACHED callback.

FUNCTION_GET_ILLUMINANCE

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_SET_ILLUMINANCE_CALLBACK_PERIOD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_GET_ILLUMINANCE_CALLBACK_PERIOD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_SET_ILLUMINANCE_CALLBACK_THRESHOLD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_GET_ILLUMINANCE_CALLBACK_THRESHOLD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_SET_DEBOUNCE_PERIOD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_GET_DEBOUNCE_PERIOD

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_SET_CONFIGURATION

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_GET_CONFIGURATION

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTION_GET_IDENTITY

This constant is used with the get_response_expected(), set_response_expected() and set_response_expected_all() subroutines.

FUNCTIONS

new()

Creates an object with the unique device ID *uid* and adds it to the IP Connection *ipcon*.

get_illuminance()

Returns the illuminance of the ambient light sensor. The value has a range of 0 to 6400000 and is given in 1/100 Lux, i.e. a value of 45000 means that an illuminance of 450 Lux is measured.

If you want to get the illuminance periodically, it is recommended to use the callback :func:`Illuminance` and set the period with :func:`SetIlluminanceCallbackPeriod`.

set_illuminance_callback_period()

Sets the period in ms with which the :func:`Illuminance` callback is triggered periodically. A value of 0 turns the callback off.

:func:`Illuminance` is only triggered if the illuminance has changed since the last triggering.

The default value is 0.

get_illuminance_callback_period()

Returns the period as set by :func:`SetIlluminanceCallbackPeriod`.

set_illuminance_callback_threshold()

Sets the thresholds for the :func:`IlluminanceReached` callback.

The following options are possible:

.. csv-table:: :header: "Option", "Description" :widths: 10, 100

 "'x'",    "Callback is turned off"
 "'o'",    "Callback is triggered when the illuminance is *outside* the min and max values"
 "'i'",    "Callback is triggered when the illuminance is *inside* the min and max values"
 "'<'",    "Callback is triggered when the illuminance is smaller than the min value (max is ignored)"
 "'>'",    "Callback is triggered when the illuminance is greater than the min value (max is ignored)"

The default value is ('x', 0, 0).

get_illuminance_callback_threshold()

Returns the threshold as set by :func:`SetIlluminanceCallbackThreshold`.

set_debounce_period()

Sets the period in ms with which the threshold callbacks

* :func:`IlluminanceReached`,

are triggered, if the thresholds

* :func:`SetIlluminanceCallbackThreshold`,

keep being reached.

The default value is 100.

get_debounce_period()

Returns the debounce period as set by :func:`SetDebouncePeriod`.

set_configuration()

Sets the configuration. It is possible to configure an illuminance range between 0-600lux and 0-64000lux and an integration time between 50ms and 400ms.

A smaller illuminance range increases the resolution of the data. An increase in integration time will result in less noise on the data.

The default values are 0-8000lux illuminance range and 200ms integration time.

get_configuration()

Returns the configuration as set by :func:`SetConfiguration`.

get_identity()

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 :ref:`here <device_identifier>`. |device_identifier_constant|