FHT Binding

FHT is a range of devices produced by busware.de which allows to interact with various protocols and devices over radio frequencies. It’s also possible to build one on your own.

  • Original Manufacturer: http://busware.de
  • Build your own (German) http://www.fhemwiki.de/wiki/Selbstbau_CUL
  • Original firmware: http://culfw.de
  • Alternative firmware: https://github.com/heliflieger/a-culfw

Binding Configuration

This binding can be configured in the services/fht.cfg file.

Property Default Required Description
device   Yes in the form serial:<device>, where <device> is a local serial port, or
network:<host>:<port>, where <host> is the host name or IP address and <port> is the port number. The network option works with ser2net from a tuxnet device
baudrate   No one of 75, 110, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
parity   No one of EVEN, ODD, MARK, NONE, SPACE

When using a serial port, you may need to add -Dgnu.io.rxtx.SerialPorts=/dev/ttyACM0 in your server startup. Please consult the forum for the latest information.

Item Configuration

Receive the valve position in percent. It can be bound to a Number item. Read-only.

{ fht="TR3D4900" }

Receive the window state of a FHT window contact. Read-only.

{ fht="TR952E90" }

This would be a binding to receive reports of a FHT80b. Currently only the measured temperature is received.

{ fht="TR3D49" }

This binding enables you to send commands to a FHT80b. Currently this will be mostly the desired temperature. But you need also a writeable binding to update the time on your FHT80b.

{ fht="TW3D49" }