openHAB - Rotary Poti Bricklet

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

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

Thing

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

Channels

Position

The position of the rotary potentiometer. The value is and between -150° (turned left) and 150° (turned right).

Type:
  • Number:Angle
UID:
  • tinkerforge:brickletrotarypoti:[UID]:BrickletRotaryPotiPosition
Read only:
  • Yes
Unit:
  • Degree Angle
Range:
  • -150 Degree Angle to 150 Degree Angle (Step 1 Degree Angle)
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.

Note

The value returned by Get Position() 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:brickletrotarypoti:[UID]:BrickletRotaryPotiAnalogValue
Read only:
  • Yes
Range:
  • 0 to 4096 (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:brickletrotarypoti:[UID]")
val hwVersion = actions.brickletRotaryPotiGetIdentity().get("hardwareVersion") as short[]
logInfo("Example", "Hardware version: " + hwVersion.get(0) + "." + hwVersion.get(1) + "." + hwVersion.get(2))

Basic Actions

brickletRotaryPotiGetPosition()
Return Map:
  • position – Type: short, Unit: 1 °, Range: [-150 to 150]

Returns the position of the rotary potentiometer. The value is between -150° (turned left) and 150° (turned right).

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

Advanced Actions

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

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

Note

The value returned by Position 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.

brickletRotaryPotiGetIdentity()
Return Map:
  • 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: 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). 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