NAME

Tinkerforge::BrickletIndustrialDualAnalogIn - Measures two DC voltages between -35V and +35V with 24bit resolution each

CONSTANTS

DEVICE_IDENTIFIER

This constant is used to identify a Industrial Dual Analog In Bricklet.

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 Industrial Dual Analog In Bricklet.

CALLBACK_VOLTAGE

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

CALLBACK_VOLTAGE_REACHED

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

FUNCTION_GET_VOLTAGE

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

FUNCTION_SET_VOLTAGE_CALLBACK_PERIOD

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

FUNCTION_GET_VOLTAGE_CALLBACK_PERIOD

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

FUNCTION_SET_VOLTAGE_CALLBACK_THRESHOLD

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

FUNCTION_GET_VOLTAGE_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_SAMPLE_RATE

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

FUNCTION_GET_SAMPLE_RATE

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

FUNCTION_SET_CALIBRATION

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

FUNCTION_GET_CALIBRATION

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

FUNCTION_GET_ADC_VALUES

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_voltage()

Returns the voltage for the given channel in mV.

If you want to get the voltage periodically, it is recommended to use the :cb:`Voltage` callback and set the period with :func:`Set Voltage Callback Period`.

set_voltage_callback_period()

Sets the period in ms with which the :cb:`Voltage` callback is triggered periodically for the given channel. A value of 0 turns the callback off.

The :cb:`Voltage` callback is only triggered if the voltage has changed since the last triggering.

The default value is 0.

get_voltage_callback_period()

Returns the period as set by :func:`Set Voltage Callback Period`.

set_voltage_callback_threshold()

Sets the thresholds for the :cb:`Voltage Reached` callback for the given channel.

The following options are possible:

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

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

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

get_voltage_callback_threshold()

Returns the threshold as set by :func:`Set Voltage Callback Threshold`.

set_debounce_period()

Sets the period in ms with which the threshold callback

* :cb:`Voltage Reached`

is triggered, if the threshold

* :func:`Set Voltage Callback Threshold`

keeps being reached.

The default value is 100.

get_debounce_period()

Returns the debounce period as set by :func:`Set Debounce Period`.

set_sample_rate()

Sets the sample rate. The sample rate can be between 1 sample per second and 976 samples per second. Decreasing the sample rate will also decrease the noise on the data.

The default value is 6 (2 samples per second).

get_sample_rate()

Returns the sample rate as set by :func:`Set Sample Rate`.

set_calibration()

Sets offset and gain of MCP3911 internal calibration registers.

See MCP3911 datasheet 7.7 and 7.8. The Industrial Dual Analog In Bricklet is already factory calibrated by Tinkerforge. It should not be necessary for you to use this function

get_calibration()

Returns the calibration as set by :func:`Set Calibration`.

get_adc_values()

Returns the ADC values as given by the MCP3911 IC. This function is needed for proper calibration, see :func:`Set Calibration`.

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|