Software / API Bindings / MATLAB/Octave / API Reference and Examples / Bricklets (Discontinued) / PTC Bricklet 2.0

MATLAB/Octave - PTC Bricklet 2.0¶

This is the description of the MATLAB/Octave API bindings for the PTC Bricklet 2.0. General information and technical specifications for the PTC Bricklet 2.0 are summarized in its hardware description.

An installation guide for the MATLAB/Octave API bindings is part of their general description.

Examples¶

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

Simple (MATLAB)¶

Download (matlab_example_simple.m)

function matlab_example_simple()
    import com.tinkerforge.IPConnection;
    import com.tinkerforge.BrickletPTCV2;

    HOST = 'localhost';
    PORT = 4223;
    UID = 'XYZ'; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = IPConnection(); % Create IP connection
    ptc = handle(BrickletPTCV2(UID, ipcon), 'CallbackProperties'); % Create device object

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

    % Get current temperature
    temperature = ptc.getTemperature();
    fprintf('Temperature: %g °C\n', temperature/100.0);

    input('Press key to exit\n', 's');
    ipcon.disconnect();
end

Callback (MATLAB)¶

Download (matlab_example_callback.m)

function matlab_example_callback()
    import com.tinkerforge.IPConnection;
    import com.tinkerforge.BrickletPTCV2;

    HOST = 'localhost';
    PORT = 4223;
    UID = 'XYZ'; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = IPConnection(); % Create IP connection
    ptc = handle(BrickletPTCV2(UID, ipcon), 'CallbackProperties'); % Create device object

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

    % Register temperature callback to function cb_temperature
    set(ptc, 'TemperatureCallback', @(h, e) cb_temperature(e));

    % Set period for temperature callback to 1s (1000ms) without a threshold
    ptc.setTemperatureCallbackConfiguration(1000, false, 'x', 0, 0);

    input('Press key to exit\n', 's');
    ipcon.disconnect();
end

% Callback function for temperature callback
function cb_temperature(e)
    fprintf('Temperature: %g °C\n', e.temperature/100.0);
end

Threshold (MATLAB)¶

Download (matlab_example_threshold.m)

function matlab_example_threshold()
    import com.tinkerforge.IPConnection;
    import com.tinkerforge.BrickletPTCV2;

    HOST = 'localhost';
    PORT = 4223;
    UID = 'XYZ'; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = IPConnection(); % Create IP connection
    ptc = handle(BrickletPTCV2(UID, ipcon), 'CallbackProperties'); % Create device object

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

    % Register temperature callback to function cb_temperature
    set(ptc, 'TemperatureCallback', @(h, e) cb_temperature(e));

    % Configure threshold for temperature "greater than 30 °C"
    % with a debounce period of 1s (1000ms)
    ptc.setTemperatureCallbackConfiguration(1000, false, '>', 30*100, 0);

    input('Press key to exit\n', 's');
    ipcon.disconnect();
end

% Callback function for temperature callback
function cb_temperature(e)
    fprintf('Temperature: %g °C\n', e.temperature/100.0);
end

Simple (Octave)¶

Download (octave_example_simple.m)

function octave_example_simple()
    more off;

    HOST = "localhost";
    PORT = 4223;
    UID = "XYZ"; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = javaObject("com.tinkerforge.IPConnection"); % Create IP connection
    ptc = javaObject("com.tinkerforge.BrickletPTCV2", UID, ipcon); % Create device object

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

    % Get current temperature
    temperature = ptc.getTemperature();
    fprintf("Temperature: %g °C\n", temperature/100.0);

    input("Press key to exit\n", "s");
    ipcon.disconnect();
end

Callback (Octave)¶

Download (octave_example_callback.m)

function octave_example_callback()
    more off;

    HOST = "localhost";
    PORT = 4223;
    UID = "XYZ"; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = javaObject("com.tinkerforge.IPConnection"); % Create IP connection
    ptc = javaObject("com.tinkerforge.BrickletPTCV2", UID, ipcon); % Create device object

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

    % Register temperature callback to function cb_temperature
    ptc.addTemperatureCallback(@cb_temperature);

    % Set period for temperature callback to 1s (1000ms) without a threshold
    ptc.setTemperatureCallbackConfiguration(1000, false, "x", 0, 0);

    input("Press key to exit\n", "s");
    ipcon.disconnect();
end

% Callback function for temperature callback
function cb_temperature(e)
    fprintf("Temperature: %g °C\n", e.temperature/100.0);
end

Threshold (Octave)¶

Download (octave_example_threshold.m)

function octave_example_threshold()
    more off;

    HOST = "localhost";
    PORT = 4223;
    UID = "XYZ"; % Change XYZ to the UID of your PTC Bricklet 2.0

    ipcon = javaObject("com.tinkerforge.IPConnection"); % Create IP connection
    ptc = javaObject("com.tinkerforge.BrickletPTCV2", UID, ipcon); % Create device object

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

    % Register temperature callback to function cb_temperature
    ptc.addTemperatureCallback(@cb_temperature);

    % Configure threshold for temperature "greater than 30 °C"
    % with a debounce period of 1s (1000ms)
    ptc.setTemperatureCallbackConfiguration(1000, false, ">", 30*100, 0);

    input("Press key to exit\n", "s");
    ipcon.disconnect();
end

% Callback function for temperature callback
function cb_temperature(e)
    fprintf("Temperature: %g °C\n", e.temperature/100.0);
end

API¶

Generally, every method of the MATLAB 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 the MATLAB bindings are based on Java and 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¶

class BrickletPTCV2(String uid, IPConnection ipcon)¶

Parameters:	uid – Type: String ipcon – Type: IPConnection
Returns:	ptcV2 – Type: BrickletPTCV2

Creates an object with the unique device ID uid.

In MATLAB:

import com.tinkerforge.BrickletPTCV2;

ptcV2 = BrickletPTCV2('YOUR_DEVICE_UID', ipcon);

In Octave:

ptcV2 = java_new("com.tinkerforge.BrickletPTCV2", "YOUR_DEVICE_UID", ipcon);

This object can then be used after the IP Connection is connected.

int BrickletPTCV2.getTemperature()¶

Returns:	temperature – Type: int, Unit: 1/100 °C, Range: [-24600 to 84900]

Returns the temperature of the connected sensor.

If you want to get the value periodically, it is recommended to use the TemperatureCallback callback. You can set the callback configuration with setTemperatureCallbackConfiguration().

int BrickletPTCV2.getResistance()¶

Returns:	resistance – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1]

Returns the value as measured by the MAX31865 precision delta-sigma ADC.

The value can be converted with the following formulas:

Pt100: resistance = (value * 390) / 32768
Pt1000: resistance = (value * 3900) / 32768

If you want to get the value periodically, it is recommended to use the ResistanceCallback callback. You can set the callback configuration with setResistanceCallbackConfiguration().

boolean BrickletPTCV2.isSensorConnected()¶

Returns:	connected – Type: boolean

Returns true if the sensor is connected correctly.

If this function returns false, there is either no Pt100 or Pt1000 sensor connected, the sensor is connected incorrectly or the sensor itself is faulty.

If you want to get the status automatically, it is recommended to use the SensorConnectedCallback callback. You can set the callback configuration with setSensorConnectedCallbackConfiguration().

void BrickletPTCV2.setWireMode(int mode)¶

Parameters:	mode – Type: int, Range: See constants, Default: 2

Sets the wire mode of the sensor. Possible values are 2, 3 and 4 which correspond to 2-, 3- and 4-wire sensors. The value has to match the jumper configuration on the Bricklet.

The following constants are available for this function:

For mode:

BrickletPTCV2.WIRE_MODE_2 = 2
BrickletPTCV2.WIRE_MODE_3 = 3
BrickletPTCV2.WIRE_MODE_4 = 4

int BrickletPTCV2.getWireMode()¶

Returns:	mode – Type: int, Range: See constants, Default: 2

Returns the wire mode as set by setWireMode()

The following constants are available for this function:

For mode:

BrickletPTCV2.WIRE_MODE_2 = 2
BrickletPTCV2.WIRE_MODE_3 = 3
BrickletPTCV2.WIRE_MODE_4 = 4

void BrickletPTCV2.setMovingAverageConfiguration(int movingAverageLengthResistance, int movingAverageLengthTemperature)¶

Parameters:	movingAverageLengthResistance – Type: int, Range: [1 to 1000], Default: 1 movingAverageLengthTemperature – Type: int, Range: [1 to 1000], Default: 40

Sets the length of a moving averaging for the resistance and temperature.

Setting the length to 1 will turn the averaging off. With less averaging, there is more noise on the data.

New data is gathered every 20ms. With a moving average of length 1000 the resulting averaging window has a length of 20s. If you want to do long term measurements the longest moving average will give the cleanest results.

The default values match the non-changeable averaging settings of the old PTC Bricklet 1.0

BrickletPTCV2.MovingAverageConfiguration BrickletPTCV2.getMovingAverageConfiguration()¶

Return Object:	movingAverageLengthResistance – Type: int, Range: [1 to 1000], Default: 1 movingAverageLengthTemperature – Type: int, Range: [1 to 1000], Default: 40

Returns the moving average configuration as set by setMovingAverageConfiguration().

Advanced Functions¶

void BrickletPTCV2.setNoiseRejectionFilter(int filter)¶

Parameters:	filter – Type: int, Range: See constants, Default: 0

Sets the noise rejection filter to either 50Hz (0) or 60Hz (1). Noise from 50Hz or 60Hz power sources (including harmonics of the AC power's fundamental frequency) is attenuated by 82dB.

The following constants are available for this function:

For filter:

BrickletPTCV2.FILTER_OPTION_50HZ = 0
BrickletPTCV2.FILTER_OPTION_60HZ = 1

int BrickletPTCV2.getNoiseRejectionFilter()¶

Returns:	filter – Type: int, Range: See constants, Default: 0

Returns the noise rejection filter option as set by setNoiseRejectionFilter()

The following constants are available for this function:

For filter:

BrickletPTCV2.FILTER_OPTION_50HZ = 0
BrickletPTCV2.FILTER_OPTION_60HZ = 1

BrickletPTCV2.SPITFPErrorCount BrickletPTCV2.getSPITFPErrorCount()¶

Return Object:	errorCountAckChecksum – Type: long, Range: [0 to 2³² - 1] errorCountMessageChecksum – Type: long, Range: [0 to 2³² - 1] errorCountFrame – Type: long, Range: [0 to 2³² - 1] errorCountOverflow – Type: long, Range: [0 to 2³² - 1]

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.

void BrickletPTCV2.setStatusLEDConfig(int config)¶

Parameters:	config – Type: int, Range: See constants, Default: 3

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:

For config:

BrickletPTCV2.STATUS_LED_CONFIG_OFF = 0
BrickletPTCV2.STATUS_LED_CONFIG_ON = 1
BrickletPTCV2.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
BrickletPTCV2.STATUS_LED_CONFIG_SHOW_STATUS = 3

int BrickletPTCV2.getStatusLEDConfig()¶

Returns:	config – Type: int, Range: See constants, Default: 3

Returns the configuration as set by setStatusLEDConfig()

The following constants are available for this function:

For config:

BrickletPTCV2.STATUS_LED_CONFIG_OFF = 0
BrickletPTCV2.STATUS_LED_CONFIG_ON = 1
BrickletPTCV2.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
BrickletPTCV2.STATUS_LED_CONFIG_SHOW_STATUS = 3

int BrickletPTCV2.getChipTemperature()¶

Returns:	temperature – Type: int, Unit: 1 °C, Range: [-2¹⁵ to 2¹⁵ - 1]

Returns the temperature 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.

void BrickletPTCV2.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!

BrickletPTCV2.Identity BrickletPTCV2.getIdentity()¶

Return Object:

Return Object:	uid – Type: String, Length: up to 8 connectedUid – Type: String, Length: up to 8 position – Type: char, Range: ['a' to 'h', 'z'] hardwareVersion – Type: short[], Length: 3 1: major – Type: short, Range: [0 to 255] 2: minor – Type: short, Range: [0 to 255] 3: revision – Type: short, Range: [0 to 255] firmwareVersion – Type: short[], Length: 3 1: major – Type: short, Range: [0 to 255] 2: minor – Type: short, Range: [0 to 255] 3: revision – Type: short, Range: [0 to 255] deviceIdentifier – Type: int, Range: [0 to 2¹⁶ - 1]

uid – Type: String, Length: up to 8
connectedUid – Type: String, Length: up to 8
position – Type: char, Range: ['a' to 'h', 'z']
hardwareVersion – Type: short[], Length: 3

1: major – Type: short, Range: [0 to 255]
2: minor – Type: short, Range: [0 to 255]
3: revision – Type: short, Range: [0 to 255]

firmwareVersion – Type: short[], Length: 3

1: major – Type: short, Range: [0 to 255]
2: minor – Type: short, Range: [0 to 255]
3: revision – Type: short, Range: [0 to 255]

deviceIdentifier – Type: int, Range: [0 to 2¹⁶ - 1]

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 Isolator Bricklet is always at position 'z'.

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

Callback Configuration Functions¶

void BrickletPTCV2.setTemperatureCallbackConfiguration(long period, boolean valueHasToChange, char option, int min, int max)¶

Parameters:	period – Type: long, Unit: 1 ms, Range: [0 to 2³² - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 °C, Range: [-2³¹ to 2³¹ - 1], Default: 0 max – Type: int, Unit: 1/100 °C, Range: [-2³¹ to 2³¹ - 1], Default: 0

The period is the period with which the TemperatureCallback callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

It is furthermore possible to constrain the callback with thresholds.

The option-parameter together with min/max sets a threshold for the TemperatureCallback callback.

The following options are possible:

Option	Description
'x'	Threshold is turned off
'o'	Threshold is triggered when the value is outside the min and max values
'i'	Threshold is triggered when the value is inside or equal to the min and max values
'<'	Threshold is triggered when the value is smaller than the min value (max is ignored)
'>'	Threshold is triggered when the value is greater than the min value (max is ignored)

If the option is set to 'x' (threshold turned off) the callback is triggered with the fixed period.

The following constants are available for this function:

For option:

BrickletPTCV2.THRESHOLD_OPTION_OFF = 'x'
BrickletPTCV2.THRESHOLD_OPTION_OUTSIDE = 'o'
BrickletPTCV2.THRESHOLD_OPTION_INSIDE = 'i'
BrickletPTCV2.THRESHOLD_OPTION_SMALLER = '<'
BrickletPTCV2.THRESHOLD_OPTION_GREATER = '>'

BrickletPTCV2.TemperatureCallbackConfiguration BrickletPTCV2.getTemperatureCallbackConfiguration()¶

Return Object:	period – Type: long, Unit: 1 ms, Range: [0 to 2³² - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: 1/100 °C, Range: [-2³¹ to 2³¹ - 1], Default: 0 max – Type: int, Unit: 1/100 °C, Range: [-2³¹ to 2³¹ - 1], Default: 0

Returns the callback configuration as set by setTemperatureCallbackConfiguration().

The following constants are available for this function:

For option:

BrickletPTCV2.THRESHOLD_OPTION_OFF = 'x'
BrickletPTCV2.THRESHOLD_OPTION_OUTSIDE = 'o'
BrickletPTCV2.THRESHOLD_OPTION_INSIDE = 'i'
BrickletPTCV2.THRESHOLD_OPTION_SMALLER = '<'
BrickletPTCV2.THRESHOLD_OPTION_GREATER = '>'

void BrickletPTCV2.setResistanceCallbackConfiguration(long period, boolean valueHasToChange, char option, int min, int max)¶

Parameters:	period – Type: long, Unit: 1 ms, Range: [0 to 2³² - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1], Default: 0 max – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1], Default: 0

The period is the period with which the ResistanceCallback callback is triggered periodically. A value of 0 turns the callback off.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

It is furthermore possible to constrain the callback with thresholds.

The option-parameter together with min/max sets a threshold for the ResistanceCallback callback.

The following options are possible:

Option	Description
'x'	Threshold is turned off
'o'	Threshold is triggered when the value is outside the min and max values
'i'	Threshold is triggered when the value is inside or equal to the min and max values
'<'	Threshold is triggered when the value is smaller than the min value (max is ignored)
'>'	Threshold is triggered when the value is greater than the min value (max is ignored)

If the option is set to 'x' (threshold turned off) the callback is triggered with the fixed period.

The following constants are available for this function:

For option:

BrickletPTCV2.THRESHOLD_OPTION_OFF = 'x'
BrickletPTCV2.THRESHOLD_OPTION_OUTSIDE = 'o'
BrickletPTCV2.THRESHOLD_OPTION_INSIDE = 'i'
BrickletPTCV2.THRESHOLD_OPTION_SMALLER = '<'
BrickletPTCV2.THRESHOLD_OPTION_GREATER = '>'

BrickletPTCV2.ResistanceCallbackConfiguration BrickletPTCV2.getResistanceCallbackConfiguration()¶

Return Object:	period – Type: long, Unit: 1 ms, Range: [0 to 2³² - 1], Default: 0 valueHasToChange – Type: boolean, Default: false option – Type: char, Range: See constants, Default: 'x' min – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1], Default: 0 max – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1], Default: 0

Returns the callback configuration as set by setResistanceCallbackConfiguration().

The following constants are available for this function:

For option:

BrickletPTCV2.THRESHOLD_OPTION_OFF = 'x'
BrickletPTCV2.THRESHOLD_OPTION_OUTSIDE = 'o'
BrickletPTCV2.THRESHOLD_OPTION_INSIDE = 'i'
BrickletPTCV2.THRESHOLD_OPTION_SMALLER = '<'
BrickletPTCV2.THRESHOLD_OPTION_GREATER = '>'

void BrickletPTCV2.setSensorConnectedCallbackConfiguration(boolean enabled)¶

Parameters:	enabled – Type: boolean, Default: false

If you enable this callback, the SensorConnectedCallback callback is triggered every time a Pt sensor is connected/disconnected.

boolean BrickletPTCV2.getSensorConnectedCallbackConfiguration()¶

Returns:	enabled – Type: boolean, Default: false

Returns the configuration as set by setSensorConnectedCallbackConfiguration().

Callbacks¶

Callbacks can be registered to receive time critical or recurring data from the device. The registration is done with "set" function of MATLAB. The parameters consist of the IP Connection object, the callback name and the callback function. For example, it looks like this in MATLAB:

function my_callback(e)
    fprintf('Parameter: %s\n', e.param);
end

set(device, 'ExampleCallback', @(h, e) my_callback(e));

Due to a difference in the Octave Java support the "set" function cannot be used in Octave. The registration is done with "add*Callback" functions of the device object. It looks like this in Octave:

function my_callback(e)
    fprintf("Parameter: %s\n", e.param);
end

device.addExampleCallback(@my_callback);

It is possible to add several callbacks and to remove them with the corresponding "remove*Callback" function.

The parameters of the callback are passed to the callback function as fields of the structure e, which is derived from the java.util.EventObject class. The available callback names with corresponding structure fields are described below.

Note

Using callbacks 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.

callback BrickletPTCV2.TemperatureCallback¶

Event Object:	temperature – Type: int, Unit: 1/100 °C, Range: [-24600 to 84900]

This callback is triggered periodically according to the configuration set by setTemperatureCallbackConfiguration().

The parameter is the same as getTemperature().

In MATLAB the set() function can be used to register a callback function to this callback.

In Octave a callback function can be added to this callback using the addTemperatureCallback() function. An added callback function can be removed with the removeTemperatureCallback() function.

callback BrickletPTCV2.ResistanceCallback¶

Event Object:	resistance – Type: int, Unit: ? Ω, Range: [-2³¹ to 2³¹ - 1]

This callback is triggered periodically according to the configuration set by setResistanceCallbackConfiguration().

The parameter is the same as getResistance().

In MATLAB the set() function can be used to register a callback function to this callback.

In Octave a callback function can be added to this callback using the addResistanceCallback() function. An added callback function can be removed with the removeResistanceCallback() function.

callback BrickletPTCV2.SensorConnectedCallback¶

Event Object:	connected – Type: boolean

This callback is triggered periodically according to the configuration set by setSensorConnectedCallbackConfiguration().

The parameter is the same as isSensorConnected().

In MATLAB the set() function can be used to register a callback function to this callback.

In Octave a callback function can be added to this callback using the addSensorConnectedCallback() function. An added callback function can be removed with the removeSensorConnectedCallback() function.

Virtual Functions¶

Virtual functions don't communicate with the device itself, but operate only on the API bindings device object. They can be called without the corresponding IP Connection object being connected.

short[] BrickletPTCV2.getAPIVersion()¶

Return Object:	apiVersion – Type: short[], Length: 3 1: major – Type: short, Range: [0 to 255] 2: minor – Type: short, Range: [0 to 255] 3: revision – Type: short, Range: [0 to 255]

Returns the version of the API definition 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.

boolean BrickletPTCV2.getResponseExpected(byte functionId)¶

Parameters:	functionId – Type: byte, Range: See constants
Returns:	responseExpected – Type: boolean

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 callback 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 sent and errors are silently ignored, because they cannot be detected.

The following constants are available for this function:

For functionId:

BrickletPTCV2.FUNCTION_SET_TEMPERATURE_CALLBACK_CONFIGURATION = 2
BrickletPTCV2.FUNCTION_SET_RESISTANCE_CALLBACK_CONFIGURATION = 6
BrickletPTCV2.FUNCTION_SET_NOISE_REJECTION_FILTER = 9
BrickletPTCV2.FUNCTION_SET_WIRE_MODE = 12
BrickletPTCV2.FUNCTION_SET_MOVING_AVERAGE_CONFIGURATION = 14
BrickletPTCV2.FUNCTION_SET_SENSOR_CONNECTED_CALLBACK_CONFIGURATION = 16
BrickletPTCV2.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
BrickletPTCV2.FUNCTION_SET_STATUS_LED_CONFIG = 239
BrickletPTCV2.FUNCTION_RESET = 243
BrickletPTCV2.FUNCTION_WRITE_UID = 248

void BrickletPTCV2.setResponseExpected(byte functionId, boolean responseExpected)¶

Parameters:	functionId – Type: byte, Range: See constants responseExpected – Type: boolean

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 callback configuration functions (default value: true). For getter functions it is always enabled.

The following constants are available for this function:

For functionId:

BrickletPTCV2.FUNCTION_SET_TEMPERATURE_CALLBACK_CONFIGURATION = 2
BrickletPTCV2.FUNCTION_SET_RESISTANCE_CALLBACK_CONFIGURATION = 6
BrickletPTCV2.FUNCTION_SET_NOISE_REJECTION_FILTER = 9
BrickletPTCV2.FUNCTION_SET_WIRE_MODE = 12
BrickletPTCV2.FUNCTION_SET_MOVING_AVERAGE_CONFIGURATION = 14
BrickletPTCV2.FUNCTION_SET_SENSOR_CONNECTED_CALLBACK_CONFIGURATION = 16
BrickletPTCV2.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
BrickletPTCV2.FUNCTION_SET_STATUS_LED_CONFIG = 239
BrickletPTCV2.FUNCTION_RESET = 243
BrickletPTCV2.FUNCTION_WRITE_UID = 248

void BrickletPTCV2.setResponseExpectedAll(boolean responseExpected)¶

Parameters:	responseExpected – Type: boolean

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

Internal Functions¶

Internal functions are used for maintenance tasks such as flashing a new firmware of changing the UID of a Bricklet. These task should be performed using Brick Viewer instead of using the internal functions directly.

int BrickletPTCV2.setBootloaderMode(int mode)¶

Parameters:	mode – Type: int, Range: See constants
Returns:	status – Type: int, Range: See constants

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:

For mode:

BrickletPTCV2.BOOTLOADER_MODE_BOOTLOADER = 0
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE = 1
BrickletPTCV2.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4

For status:

BrickletPTCV2.BOOTLOADER_STATUS_OK = 0
BrickletPTCV2.BOOTLOADER_STATUS_INVALID_MODE = 1
BrickletPTCV2.BOOTLOADER_STATUS_NO_CHANGE = 2
BrickletPTCV2.BOOTLOADER_STATUS_ENTRY_FUNCTION_NOT_PRESENT = 3
BrickletPTCV2.BOOTLOADER_STATUS_DEVICE_IDENTIFIER_INCORRECT = 4
BrickletPTCV2.BOOTLOADER_STATUS_CRC_MISMATCH = 5

int BrickletPTCV2.getBootloaderMode()¶

Returns:	mode – Type: int, Range: See constants

Returns the current bootloader mode, see setBootloaderMode().

The following constants are available for this function:

For mode:

BrickletPTCV2.BOOTLOADER_MODE_BOOTLOADER = 0
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE = 1
BrickletPTCV2.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
BrickletPTCV2.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4

void BrickletPTCV2.setWriteFirmwarePointer(long pointer)¶

Parameters:	pointer – Type: long, Unit: 1 B, Range: [0 to 2³² - 1]

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.

int BrickletPTCV2.writeFirmware(int[] data)¶

Parameters:	data – Type: int[], Length: 64, Range: [0 to 255]
Returns:	status – Type: int, Range: [0 to 255]

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.

void BrickletPTCV2.writeUID(long uid)¶

Parameters:	uid – Type: long, Range: [0 to 2³² - 1]

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.

long BrickletPTCV2.readUID()¶

Returns:	uid – Type: long, Range: [0 to 2³² - 1]

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

Constants¶

int BrickletPTCV2.DEVICE_IDENTIFIER¶

This constant is used to identify a PTC Bricklet 2.0.

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

String BrickletPTCV2.DEVICE_DISPLAY_NAME¶: This constant represents the human readable name of a PTC Bricklet 2.0.