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Software / API Bindings / openHAB / API Reference and Examples / Bricklets (Discontinued) / Voltage Bricklet

openHAB - Voltage Bricklet

Bemerkung

Die openHAB-Dokumentation ist nur auf Englisch verfügbar.

Warnung

The openHAB bindings are still in beta, but the development was stopped.

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

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

Thing

UID:
  • tinkerforge:brickletvoltage:[UID]
Required firmware version:
  • 2.0.0
Firmware update supported:
  • yes
Channels:
Actions:

Channels

Voltage

The measured voltage

Type:
  • Number:ElectricPotential
UID:
  • tinkerforge:brickletvoltage:[UID]:BrickletVoltageVoltage
Read only:
  • Yes
Unit:
  • Volt
Range:
  • 0 Volt to 50 Volt (Step 0.001 Volt)
Parameters:
  • Update Interval – Type: integer, Default: 1000, Unit: ms, Min: 0, Max: 4294967295
  • Specifies the update interval in milliseconds. A value of 0 disables automatic updates.
Analog Value

Returns the value as read by a 12-bit analog-to-digital converter.

Bemerkung

The value returned by Get Voltage() is averaged over several samples to yield less noise, while Get Analog Value() gives back raw unfiltered analog values. The only reason to use Get Analog Value() is, if you need the full resolution of the analog-to-digital converter.

Type:
  • Number:Dimensionless
UID:
  • tinkerforge:brickletvoltage:[UID]:BrickletVoltageAnalogValue
Read only:
  • Yes
Range:
  • 0 to 4095 (Step 1)
Parameters:
  • Update Interval – Type: integer, Default: 1000, Unit: ms, Min: 0, Max: 4294967295
  • Specifies the update interval in milliseconds. A value of 0 disables automatic updates.

Actions

Actions can be used in rules by creating an action object. All actions return a Map<String, Object>. Returned values can be accessed by name, sometimes the type deduction needs some hints, as shown below:

val actions = getActions("tinkerforge", "tinkerforge:brickletvoltage:[UID]")
val hwVersion = actions.brickletVoltageGetIdentity().get("hardwareVersion") as short[]
logInfo("Example", "Hardware version: " + hwVersion.get(0) + "." + hwVersion.get(1) + "." + hwVersion.get(2))

Basic Actions

brickletVoltageGetVoltage()
Return Map:
  • voltage – Type: int, Unit: 1 mV, Range: [0 to 50000]

Returns the voltage of the sensor.

If you want to get the voltage periodically, it is recommended to use the Voltage channel and set the period with the configuration of Voltage.

Advanced Actions

brickletVoltageGetAnalogValue()
Return Map:
  • value – Type: int, Range: [0 to 212 - 1]

Returns the value as read by a 12-bit analog-to-digital converter.

Bemerkung

The value returned by Voltage is averaged over several samples to yield less noise, while Analog Value gives back raw unfiltered analog values. The only reason to use Analog Value is, if you need the full resolution of the analog-to-digital converter.

If you want the analog value periodically, it is recommended to use the Analog Value channel and set the period with the configuration of Analog Value.

brickletVoltageGetIdentity()
Return Map:
  • 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
    • 0: major – Type: short, Range: [0 to 255]
    • 1: minor – Type: short, Range: [0 to 255]
    • 2: revision – Type: short, Range: [0 to 255]
  • firmwareVersion – Type: short[], Length: 3
    • 0: major – Type: short, Range: [0 to 255]
    • 1: minor – Type: short, Range: [0 to 255]
    • 2: 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.