LabVIEW - Outdoor Weather Bricklet

This is the description of the LabVIEW API bindings for the Outdoor Weather Bricklet. General information and technical specifications for the Outdoor Weather Bricklet are summarized in its hardware description.

An installation guide for the LabVIEW API bindings is part of their general description.

API

Generally, every function of the LabVIEW bindings that outputs a value can report a Tinkerforge.TimeoutException. This error gets reported if the device did not respond. If a cable based connection is used, it is unlikely that this exception gets thrown (assuming nobody plugs the device out). However, if a wireless connection is used, timeouts will occur if the distance to the device gets too big.

The namespace for all Brick/Bricklet bindings and the IPConnection is Tinkerforge.*.

Basic Functions

BrickletOutdoorWeather(uid, ipcon) → outdoorWeather
Input:
  • uid – Type: String
  • ipcon – Type: .NET Refnum (IPConnection)
Output:
  • outdoorWeather – Type: .NET Refnum (BrickletOutdoorWeather)

Creates an object with the unique device ID uid. This object can then be used after the IP Connection is connected (see examples above).

BrickletOutdoorWeather.GetStationIdentifiers() → identifiers
Output:
  • identifiers – Type: Byte[], Length: variable, Range: [0 to 255]

Returns the identifiers (number between 0 and 255) of all stations that have been seen since the startup of the Bricklet.

Each station gives itself a random identifier on first startup.

Since firmware version 2.0.2 a station is removed from the list if no data was received for 12 hours.

BrickletOutdoorWeather.GetSensorIdentifiers() → identifiers
Output:
  • identifiers – Type: Byte[], Length: variable, Range: [0 to 255]

Returns the identifiers (number between 0 and 255) of all sensors that have been seen since the startup of the Bricklet.

Each sensor gives itself a random identifier on first startup.

Since firmware version 2.0.2 a sensor is removed from the list if no data was received for 12 hours.

BrickletOutdoorWeather.GetStationData(identifier) → temperature, humidity, windSpeed, gustSpeed, rain, windDirection, batteryLow, lastChange
Input:
  • identifier – Type: Byte, Range: [0 to 255]
Output:
  • temperature – Type: Int16, Unit: 1/10 °C, Range: [-400 to 650]
  • humidity – Type: Byte, Unit: 1 %, Range: [10 to 99]
  • windSpeed – Type: Int64, Unit: 1/10 m/s, Range: [0 to 232 - 1]
  • gustSpeed – Type: Int64, Unit: 1/10 m/s, Range: [0 to 232 - 1]
  • rain – Type: Int64, Unit: 1/10 mm, Range: [0 to 232 - 1]
  • windDirection – Type: Byte, Range: See constants
  • batteryLow – Type: Boolean
  • lastChange – Type: Int32, Unit: 1 s, Range: [0 to 216 - 1]

Returns the last received data for a station with the given identifier. Call GetStationIdentifiers() for a list of all available identifiers.

The return values are:

  • Temperature,
  • Humidity,
  • Wind Speed,
  • Gust Speed,
  • Rain Fall,
  • Wind Direction,
  • Battery Low (true if battery is low) and
  • Last Change (seconds since the reception of this data).

The following constants are available for this function:

For windDirection:

  • BrickletOutdoorWeather.WIND_DIRECTION_N = 0
  • BrickletOutdoorWeather.WIND_DIRECTION_NNE = 1
  • BrickletOutdoorWeather.WIND_DIRECTION_NE = 2
  • BrickletOutdoorWeather.WIND_DIRECTION_ENE = 3
  • BrickletOutdoorWeather.WIND_DIRECTION_E = 4
  • BrickletOutdoorWeather.WIND_DIRECTION_ESE = 5
  • BrickletOutdoorWeather.WIND_DIRECTION_SE = 6
  • BrickletOutdoorWeather.WIND_DIRECTION_SSE = 7
  • BrickletOutdoorWeather.WIND_DIRECTION_S = 8
  • BrickletOutdoorWeather.WIND_DIRECTION_SSW = 9
  • BrickletOutdoorWeather.WIND_DIRECTION_SW = 10
  • BrickletOutdoorWeather.WIND_DIRECTION_WSW = 11
  • BrickletOutdoorWeather.WIND_DIRECTION_W = 12
  • BrickletOutdoorWeather.WIND_DIRECTION_WNW = 13
  • BrickletOutdoorWeather.WIND_DIRECTION_NW = 14
  • BrickletOutdoorWeather.WIND_DIRECTION_NNW = 15
  • BrickletOutdoorWeather.WIND_DIRECTION_ERROR = 255
BrickletOutdoorWeather.GetSensorData(identifier) → temperature, humidity, lastChange
Input:
  • identifier – Type: Byte, Range: [0 to 255]
Output:
  • temperature – Type: Int16, Unit: 1/10 °C, Range: [-215 to 215 - 1]
  • humidity – Type: Byte, Unit: 1 %, Range: [0 to 255]
  • lastChange – Type: Int32, Unit: 1 s, Range: [0 to 216 - 1]

Returns the last measured data for a sensor with the given identifier. Call GetSensorIdentifiers() for a list of all available identifiers.

The return values are:

  • Temperature,
  • Humidity and
  • Last Change (seconds since the last reception of data).

Advanced Functions

BrickletOutdoorWeather.GetSPITFPErrorCount() → errorCountAckChecksum, errorCountMessageChecksum, errorCountFrame, errorCountOverflow
Output:
  • errorCountAckChecksum – Type: Int64, Range: [0 to 232 - 1]
  • errorCountMessageChecksum – Type: Int64, Range: [0 to 232 - 1]
  • errorCountFrame – Type: Int64, Range: [0 to 232 - 1]
  • errorCountOverflow – Type: Int64, 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.

BrickletOutdoorWeather.SetBootloaderMode(mode) → status
Input:
  • mode – Type: Byte, Range: See constants
Output:
  • status – Type: Byte, 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:

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

For status:

  • BrickletOutdoorWeather.BOOTLOADER_STATUS_OK = 0
  • BrickletOutdoorWeather.BOOTLOADER_STATUS_INVALID_MODE = 1
  • BrickletOutdoorWeather.BOOTLOADER_STATUS_NO_CHANGE = 2
  • BrickletOutdoorWeather.BOOTLOADER_STATUS_ENTRY_FUNCTION_NOT_PRESENT = 3
  • BrickletOutdoorWeather.BOOTLOADER_STATUS_DEVICE_IDENTIFIER_INCORRECT = 4
  • BrickletOutdoorWeather.BOOTLOADER_STATUS_CRC_MISMATCH = 5
BrickletOutdoorWeather.GetBootloaderMode() → mode
Output:
  • mode – Type: Byte, Range: See constants

Returns the current bootloader mode, see SetBootloaderMode().

The following constants are available for this function:

For mode:

  • BrickletOutdoorWeather.BOOTLOADER_MODE_BOOTLOADER = 0
  • BrickletOutdoorWeather.BOOTLOADER_MODE_FIRMWARE = 1
  • BrickletOutdoorWeather.BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
  • BrickletOutdoorWeather.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
  • BrickletOutdoorWeather.BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4
BrickletOutdoorWeather.SetWriteFirmwarePointer(pointer)
Input:
  • pointer – Type: Int64, 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.

BrickletOutdoorWeather.WriteFirmware(data) → status
Input:
  • data – Type: Byte[64], Range: [0 to 255]
Output:
  • status – Type: Byte, 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.

BrickletOutdoorWeather.SetStatusLEDConfig(config)
Input:
  • config – Type: Byte, 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:

  • BrickletOutdoorWeather.STATUS_LED_CONFIG_OFF = 0
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_ON = 1
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_SHOW_STATUS = 3
BrickletOutdoorWeather.GetStatusLEDConfig() → config
Output:
  • config – Type: Byte, Range: See constants, Default: 3

Returns the configuration as set by SetStatusLEDConfig()

The following constants are available for this function:

For config:

  • BrickletOutdoorWeather.STATUS_LED_CONFIG_OFF = 0
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_ON = 1
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BrickletOutdoorWeather.STATUS_LED_CONFIG_SHOW_STATUS = 3
BrickletOutdoorWeather.GetChipTemperature() → temperature
Output:
  • temperature – Type: Int16, 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.

BrickletOutdoorWeather.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!

BrickletOutdoorWeather.WriteUID(uid)
Input:
  • uid – Type: Int64, 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.

BrickletOutdoorWeather.ReadUID() → uid
Output:
  • uid – Type: Int64, Range: [0 to 232 - 1]

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

BrickletOutdoorWeather.GetIdentity() → uid, connectedUid, position, hardwareVersion, firmwareVersion, deviceIdentifier
Output:
  • uid – Type: String, Length: up to 8
  • connectedUid – Type: String, Length: up to 8
  • position – Type: Char, Range: ["a" to "h", "i", "z"]
  • hardwareVersion – Type: Byte[3]
    • 0: major – Type: Byte, Range: [0 to 255]
    • 1: minor – Type: Byte, Range: [0 to 255]
    • 2: revision – Type: Byte, Range: [0 to 255]
  • firmwareVersion – Type: Byte[3]
    • 0: major – Type: Byte, Range: [0 to 255]
    • 1: minor – Type: Byte, Range: [0 to 255]
    • 2: revision – Type: Byte, Range: [0 to 255]
  • deviceIdentifier – Type: Int32, 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). The Raspberry Pi HAT (Zero) Brick is always at position 'i' and the Bricklet connected to an Isolator Bricklet is always as 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

BrickletOutdoorWeather.SetStationCallbackConfiguration(enableCallback)
Input:
  • enableCallback – Type: Boolean, Default: F

Turns callback for station data on or off.

BrickletOutdoorWeather.GetStationCallbackConfiguration() → enableCallback
Output:
  • enableCallback – Type: Boolean, Default: F

Returns the configuration as set by SetStationCallbackConfiguration().

BrickletOutdoorWeather.SetSensorCallbackConfiguration(enableCallback)
Input:
  • enableCallback – Type: Boolean, Default: F

Turns callback for sensor data on or off.

BrickletOutdoorWeather.GetSensorCallbackConfiguration() → enableCallback
Output:
  • enableCallback – Type: Boolean, Default: F

Returns the configuration as set by SetSensorCallbackConfiguration().

Callbacks

Callbacks can be registered to receive time critical or recurring data from the device. The registration is done by assigning a function to a callback property of the device object. The available callback property and their type of parameters 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.

event BrickletOutdoorWeather.StationDataCallback → sender, identifier, temperature, humidity, windSpeed, gustSpeed, rain, windDirection, batteryLow
Callback Output:
  • sender – Type: .NET Refnum (BrickletOutdoorWeather)
  • identifier – Type: Byte, Range: [0 to 255]
  • temperature – Type: Int16, Unit: 1/10 °C, Range: [-400 to 650]
  • humidity – Type: Byte, Unit: 1 %, Range: [10 to 99]
  • windSpeed – Type: Int64, Unit: 1/10 m/s, Range: [0 to 232 - 1]
  • gustSpeed – Type: Int64, Unit: 1/10 m/s, Range: [0 to 232 - 1]
  • rain – Type: Int64, Unit: 1/10 mm, Range: [0 to 232 - 1]
  • windDirection – Type: Byte, Range: See constants
  • batteryLow – Type: Boolean

Reports the station data every time a new data packet is received. See GetStationData() for information about the data.

For each station the callback will be triggered about every 45 seconds.

Turn the callback on/off with SetStationCallbackConfiguration() (by default it is turned off).

The following constants are available for this function:

For windDirection:

  • BrickletOutdoorWeather.WIND_DIRECTION_N = 0
  • BrickletOutdoorWeather.WIND_DIRECTION_NNE = 1
  • BrickletOutdoorWeather.WIND_DIRECTION_NE = 2
  • BrickletOutdoorWeather.WIND_DIRECTION_ENE = 3
  • BrickletOutdoorWeather.WIND_DIRECTION_E = 4
  • BrickletOutdoorWeather.WIND_DIRECTION_ESE = 5
  • BrickletOutdoorWeather.WIND_DIRECTION_SE = 6
  • BrickletOutdoorWeather.WIND_DIRECTION_SSE = 7
  • BrickletOutdoorWeather.WIND_DIRECTION_S = 8
  • BrickletOutdoorWeather.WIND_DIRECTION_SSW = 9
  • BrickletOutdoorWeather.WIND_DIRECTION_SW = 10
  • BrickletOutdoorWeather.WIND_DIRECTION_WSW = 11
  • BrickletOutdoorWeather.WIND_DIRECTION_W = 12
  • BrickletOutdoorWeather.WIND_DIRECTION_WNW = 13
  • BrickletOutdoorWeather.WIND_DIRECTION_NW = 14
  • BrickletOutdoorWeather.WIND_DIRECTION_NNW = 15
  • BrickletOutdoorWeather.WIND_DIRECTION_ERROR = 255
event BrickletOutdoorWeather.SensorDataCallback → sender, identifier, temperature, humidity
Callback Output:
  • sender – Type: .NET Refnum (BrickletOutdoorWeather)
  • identifier – Type: Byte, Range: [0 to 255]
  • temperature – Type: Int16, Unit: 1/10 °C, Range: [-215 to 215 - 1]
  • humidity – Type: Byte, Unit: 1 %, Range: [0 to 255]

Reports the sensor data every time a new data packet is received. See GetSensorData() for information about the data.

For each sensor the callback will be called about every 45 seconds.

Turn the callback on/off with SetSensorCallbackConfiguration() (by default it is turned off).

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.

BrickletOutdoorWeather.GetAPIVersion() → apiVersion
Output:
  • apiVersion – Type: Byte[3]
    • 0: major – Type: Byte, Range: [0 to 255]
    • 1: minor – Type: Byte, Range: [0 to 255]
    • 2: revision – Type: Byte, 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.

BrickletOutdoorWeather.GetResponseExpected(functionId) → responseExpected
Input:
  • functionId – Type: Byte, Range: See constants
Output:
  • 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 send and errors are silently ignored, because they cannot be detected.

The following constants are available for this function:

For functionId:

  • BrickletOutdoorWeather.FUNCTION_SET_STATION_CALLBACK_CONFIGURATION = 5
  • BrickletOutdoorWeather.FUNCTION_SET_SENSOR_CALLBACK_CONFIGURATION = 7
  • BrickletOutdoorWeather.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
  • BrickletOutdoorWeather.FUNCTION_SET_STATUS_LED_CONFIG = 239
  • BrickletOutdoorWeather.FUNCTION_RESET = 243
  • BrickletOutdoorWeather.FUNCTION_WRITE_UID = 248
BrickletOutdoorWeather.SetResponseExpected(functionId, responseExpected)
Input:
  • 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.

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

The following constants are available for this function:

For functionId:

  • BrickletOutdoorWeather.FUNCTION_SET_STATION_CALLBACK_CONFIGURATION = 5
  • BrickletOutdoorWeather.FUNCTION_SET_SENSOR_CALLBACK_CONFIGURATION = 7
  • BrickletOutdoorWeather.FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
  • BrickletOutdoorWeather.FUNCTION_SET_STATUS_LED_CONFIG = 239
  • BrickletOutdoorWeather.FUNCTION_RESET = 243
  • BrickletOutdoorWeather.FUNCTION_WRITE_UID = 248
BrickletOutdoorWeather.SetResponseExpectedAll(responseExpected)
Input:
  • responseExpected – Type: Boolean

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

Constants

BrickletOutdoorWeather.DEVICE_IDENTIFIER

This constant is used to identify a Outdoor Weather Bricklet.

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.

BrickletOutdoorWeather.DEVICE_DISPLAY_NAME

This constant represents the human readable name of a Outdoor Weather Bricklet.