Exec Binding Setup on OpenHAB2

Add-ons Bindings
1

I’ve migrated to OH2 from 1.8 and all is going well.

In 1.8 I had an Exec binding which called RCSwitch to turn on some 433Mhz power sockets.

In OH2 I’ve installed the Exec 1.9.0.b4 through PaperUI.

My items file:
Switch BathroomDehumidifier “Power” {exec=">[OFF:sudo /home/pi/config/wiringpi/switchOff.sh 3 1] >[ON:sudo /home/pi/config/wiringpi/switchOn.sh 3 1]"}

My sitemap:
Switch item=BathroomDehumidifier

If I call the command in the items file the switch works, but not from the OpenHAB UI.

Any ideas? Is it configuration or permissions causing the problem?

2

Do you see anything happening in the logs?

3

Nothing in /var/log/openhab2/openhab.log

However, if I call service openhab2 status I see:

openhab : command not allowed ; TTY=unknown ; PWD=/var/lib/openhab2 ; USER=root ; COMMAND=/home/pi/config/wiringpi/s...hOn.sh 3 1
4

It was permissions.

Calling sudo visudo and adding

openhab ALL=NOPASSWD: /home/pi/config/wiringpi/switch*

Got things working

5

Excellent - don’t you like when you get to answer your own questions? :wink:

1 Like
6

I’d added the user hab to that file, and pi for good measure. Only in the service log did I see that it was referencing the user “openhab”