Visual Basic .NET - Analog Out Bricklet 2.0 – Tinkerforge

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# Visual Basic .NET - Analog Out Bricklet 2.0

Note

This Bricklet is currently in the prototype stage and the software/hardware as well as the documentation is in an incomplete state.

This is the description of the Visual Basic .NET API bindings for the Analog Out Bricklet 2.0. General information and technical specifications for the Analog Out Bricklet 2.0 are summarized in its hardware description.

An installation guide for the Visual Basic .NET API bindings is part of their general description.

## Examples

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

### Simple

Download (ExampleSimple.vb)

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    Imports Tinkerforge

    Module ExampleSimple
        Const HOST As String = "localhost"
        Const PORT As Integer = 4223
        Const UID As String = "XYZ" ' Change to your UID

        Sub Main()
            Dim ipcon As New IPConnection() ' Create IP connection
            Dim ao As New BrickletAnalogOutV2(UID, ipcon) ' Create device object

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

            'Set output voltage to 3.3V
            ao.SetOutputVoltage(3300)

            System.Console.WriteLine("Press key to exit")
            System.Console.ReadLine()
            ipcon.Disconnect()
        End Sub
    End Module

## API

Since Visual Basic .NET does not support multiple return values directly, we use the `ByRef` keyword to return multiple values from a function.

All functions and procedures listed below are thread-safe.

### Basic Functions

Class `BrickletAnalogOutV2`(ByVal uid As String, ByVal ipcon As IPConnection)

  Creates an object with the unique device ID `uid`:

      Dim analogOutV2 As New BrickletAnalogOutV2("YOUR_DEVICE_UID", ipcon)

  This object can then be used after the IP Connection is connected (see examples above).

Sub `BrickletAnalogOutV2.``SetOutputVoltage`(ByVal voltage As Integer)

  Sets the voltage in mV. The possible range is 0V to 12V (0-12000).

Function `BrickletAnalogOutV2.``GetOutputVoltage`() As Integer

  Returns the voltage as set by `SetOutputVoltage()`.

### Advanced Functions

Function `BrickletAnalogOutV2.``GetInputVoltage`() As Integer

  Returns the input voltage in mV.

Function `BrickletAnalogOutV2.``GetAPIVersion`() As Byte()

  Returns the version of the API definition (major, minor, revision) 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.

Function `BrickletAnalogOutV2.``GetResponseExpected`(ByVal functionId As Byte) As 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.

  See `SetResponseExpected()` for the list of function ID constants available for this function.

Sub `BrickletAnalogOutV2.``SetResponseExpected`(ByVal functionId As Byte, ByVal responseExpected As 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 and callbacks it is always disabled.

  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 function ID constants are available for this function:

  - BrickletAnalogOutV2.FUNCTION_SET_OUTPUT_VOLTAGE = 1

Sub `BrickletAnalogOutV2.``SetResponseExpectedAll`(ByVal responseExpected As Boolean)

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

Sub `BrickletAnalogOutV2.``GetIdentity`(ByRef uid As String, ByRef connectedUid As String, ByRef position As Char, ByRef hardwareVersion() As Byte, ByRef firmwareVersion() As Byte, ByRef deviceIdentifier As Integer)

  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 here. There is also a constant for the device identifier of this Bricklet.

### Constants

Const `BrickletAnalogOutV2.``DEVICE_IDENTIFIER`

  This constant is used to identify a Analog Out Bricklet 2.0.

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

The content of this page is licensed under Creative Commons Attribution 3.0 Unported License.