Domoticz

Posted: **Monday 13 April 2020 16:50**

Hi all,

I got my Somfy sunblinds working with a cheap crystal using a 433.92Mhz crystal on Gpio ports using this script: https://github.com/alxlaxv/SomPi
If i use the command line i can use my sunblinds. They wil close and open perfectly.

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pi@raspberrypi:~/domoticz/scripts/SomPi $ ./controller.py Overkapping open
pi@raspberrypi:~/domoticz/scripts/SomPi $ ./controller.py Overkapping close

Now i want to use the command in domoticz but i cant get it to work.

: Add Switch.jpg (34.78 KiB) Viewed 3359 times

: Capture.jpg (39.55 KiB) Viewed 3359 times

I get the error :
Error executing script command (/home/pi/domoticz/scripts/SomPi/controller.py). returned: 256
My guess is that my line is not correct in the domoticz switch.

I hope you can figure out my bad english

Posted: **Monday 13 April 2020 18:34**

Hi,

@Havym

You wrote:

Error executing script command (/home/pi/domoticz/scripts/SomPi/controller.py). returned: 256
My guess is that my line is not correct in the domoticz switch.

You have 2 options for the script.

1. Use relative path:
In this case it is assumed that the script is installed in ~/domoticz/scripts
On action would be: script://your_script

2. Use absolute path:
The on action would be e.g.: script:///home/pi/domoticz/scripts/your_script.

Mind the difference in 2 // and 3 ///.

You seem to use option 1 (Relative path)
So your script should be: script://SomPi/controller.py parameter1 parameter2
So 2 // and I think your script is correct.

Be aware that the script is owned by the same user, as that Domoticz is running.
Usely Domoticz runs as root.
Also you should set the eXecute bit for the script.
Check that you see a x if you do: ls -l controller.py.

If this doesn't help you can you post the script.

See also: https://www.domoticz.com/forum/viewtopic.php?t=17285
And: https://www.domoticz.com/forum/viewtopi ... 41#p231841

Regards

Posted: **Monday 13 April 2020 19:21**

Thanks for your reply.
I'm a Noob with scripts so i had to read your answer 5 times.

Both ways gives me the 256 error so i think my problem is in the script.
My problem is the same as mentioned in https://www.domoticz.com/forum/viewtopic.php?t=17285 like you referred to me.
The script uses a txt file in a subfolder..

Its not my script but here you can find it https://github.com/alxlaxv/SomPi

-rwxr-xr-x 1 pi pi 4516 Apr 13 16:03 controller.py

Posted: **Monday 13 April 2020 19:32**

Hi,

Could you try to run your script as root user: sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping open, or close

What do you see?

Regards

Posted: **Tuesday 14 April 2020 9:43**

FireWizard wrote: Monday 13 April 2020 19:32 Could you try to run your script as root user: sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping open, or close

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pi@raspberrypi:~ $  sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping close
Action       : close
Room         : Overkapping
Traceback (most recent call last):
  File "/home/pi/domoticz/scripts/SomPi/controller.py", line 164, in <module>
    send(sys.argv[1], sys.argv[2])
  File "/home/pi/domoticz/scripts/SomPi/controller.py", line 43, in send
    with open("remotes/" + room + ".txt", 'r') as file:
IOError: [Errno 2] No such file or directory: 'remotes/Overkapping.txt'

Run in subfolder:

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pi@raspberrypi:~/domoticz/scripts/SomPi $ sudo ./controller.py Overkapping close
Action       : close
Room         : Overkapping
Remote       : 0x267043
Button       : 0x04
Rolling code : 232
Frame        : 0xA7 0x40 0x00 0xE8 0x26 0x70 0x43
With cks     : 0xA7 0x4B 0x00 0xE8 0x26 0x70 0x43
Obfuscated   : 0xA7 0xEC 0xEC 0x04 0x22 0x52 0x11

Posted: **Tuesday 14 April 2020 16:04**

Hi,

One other try.

Go to the /home/pi/domoticz/scripts/ folder and run sudo SomPi/controller.py Overkapping close

Please publish the result.
I expect the same result as with: sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping close

If so, do the following:

Move your file controller.py from the /home/pi/domoticz/scripts/SomPi/ to the /home/pi/domoticz/scripts/ folder.
So one folder higher.

Regards

Posted: **Wednesday 15 April 2020 13:24**

FireWizard wrote: Tuesday 14 April 2020 16:04 Go to the /home/pi/domoticz/scripts/ folder and run sudo SomPi/controller.py Overkapping close
Please publish the result.
I expect the same result as with: sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping close

Hi, your right, same result:

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pi@raspberrypi:~/domoticz/scripts $ sudo SomPi/controller.py Overkapping close
Action       : close
Room         : Overkapping
Traceback (most recent call last):
  File "SomPi/controller.py", line 164, in <module>
    send(sys.argv[1], sys.argv[2])
  File "SomPi/controller.py", line 43, in send
    with open("remotes/" + room + ".txt", 'r') as file:
IOError: [Errno 2] No such file or directory: 'remotes/Overkapping.txt'

FireWizard wrote: Tuesday 14 April 2020 16:04 If so, do the following:

Move your file controller.py from the /home/pi/domoticz/scripts/SomPi/ to the /home/pi/domoticz/scripts/ folder.
So one folder higher.

Regards

When controller.py and subfolder remotes is moved to the scripts folder and i use 'sudo controller.py Overkapping close' it shows

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pi@raspberrypi:~/domoticz/scripts $ sudo controller.py Overkapping close
sudo: controller.py: command not found

When i use 'sudo ./controller.py Overkapping close' it works
Same as in subfolder SomPi using ./controller.py

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pi@raspberrypi:~/domoticz/scripts $ sudo ./controller.py Overkapping close
Action       : close
Room         : Overkapping
Remote       : 0x267043
Button       : 0x04
Rolling code : 243
Frame        : 0xA7 0x40 0x00 0xF3 0x26 0x70 0x43
With cks     : 0xA7 0x41 0x00 0xF3 0x26 0x70 0x43
Obfuscated   : 0xA7 0xE6 0xE6 0x15 0x33 0x43 0x00

Posted: **Wednesday 15 April 2020 18:56**

Hi,
@Havym

That is correct.

In all unixes and linux you have to precede the command (in this case controller.py) with ./, unless the folder is in your path.
The folder /home/pi/domoticz/scripts is not in your path, so every command you want to run in this folder you have to precede with ./.

What is happening, if you replace in Domoticz "Aan actie:" with: script://controller.py Overkapping open
and
"Uit actie:" with script://controller.py Overkapping close

Regards

Posted: **Thursday 16 April 2020 12:17**

I tried making a dummy switch with these command and got the error again in domoticz

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2020-04-16 12:14:19.440 Error: Error executing script command (/home/pi/domoticz/scripts/controller.py). returned: 256

And in command line:

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pi@raspberrypi:~/domoticz/scripts $ ./controller.py Overkapping close
Action       : close
Room         : Overkapping
Remote       : 0x267043
Button       : 0x04
Rolling code : 244
Frame        : 0xA7 0x40 0x00 0xF4 0x26 0x70 0x43
With cks     : 0xA7 0x46 0x00 0xF4 0x26 0x70 0x43
Obfuscated   : 0xA7 0xE1 0xE1 0x15 0x33 0x43 0x00

Posted: **Friday 17 April 2020 12:41**

Unfortunately it still doesn't work. Can i put this command in another file and run the new file?
Maybe you can tell me how the script should look like. I cant do it myself.

Posted: **Friday 17 April 2020 16:42**

Hi,

Sorry for my late reply, because of some other obligations.

I think you suffer from the same issue , that I had some time ago.

See: https://www.domoticz.com/forum/viewtopi ... tt#p233291

I suggest the following:

1. Make the script file owned by root and group root:

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sudo chown root.root controller.py

2. Now set the SetUID bit, make it executable for all and writable only by root:

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sudo chmod 4755 controller.py

Keep in mind if this script will allow any input or editing of files, this will also be done as root.

The SetUID bit makes a script or binary always run as the owner of the file/binary.

Fount at: https://askubuntu.com/questions/167847/ ... o-password

Regards

Posted: **Saturday 18 April 2020 10:54**

No problem about your late reply. Sometimes life keeps up busy. But maybe you forgot about me

Maybe i should mention it before but domoticz is run by user pi and not by root.
But i tried the things you mentioned but it still doenst work.
Using command line with sudo /home/pi/domoticz/scripts/SomPi/controller.py Overkapping close i get these results:

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pi@raspberrypi:~ $ sudo /home/pi/domoticz/scripts/controller.py Overkapping close
Action       : close
Room         : Overkapping
Traceback (most recent call last):
  File "/home/pi/domoticz/scripts/controller.py", line 164, in <module>
    send(sys.argv[1], sys.argv[2])
  File "/home/pi/domoticz/scripts/controller.py", line 43, in send
    with open("remotes/" + room + ".txt", 'r') as file:
IOError: [Errno 2] No such file or directory: 'remotes/Overkapping.txt'

And in domoticz

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Error executing script command (/home/pi/domoticz/scripts/controller.py). returned: 256

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-rwsr-xr-x 1 root root  4516 Apr 13 16:03 controller.py

The funny thing is... i run the same kind of script for my 433Mhz Klik aan Klik uit with codesend

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-rwxr-xr-x 1 pi pi 20104 Oct  7  2019 codesend

Is it because my controller.py is a python script file?

Posted: **Saturday 18 April 2020 12:47**

I managed to got it working from /home/pi/domoticz/scripts/controller.py

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pi@raspberrypi:~ $ sudo /home/pi/domoticz/scripts/controller.py Overkapping close
Action       : close
Room         : Overkapping
Remote       : 0x267043
Button       : 0x04
Rolling code : 263
Frame        : 0xA7 0x40 0x01 0x07 0x26 0x70 0x43
With cks     : 0xA7 0x4B 0x01 0x07 0x26 0x70 0x43
Obfuscated   : 0xA7 0xEC 0xED 0xEA 0xCC 0xBC 0xFF

I had to remove the folder 'remotes' to the right place in /home/pi

But still when its executed in domoticz i get error 256
Is it because of the reply from the script that it doenst work in domoticz?

I tried making overkappingclose.sh file to execute and it works in command line but not in domoticz. Same result 256

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#!/bin/bash
/usr/bin/python2 /home/pi/domoticz/scripts/controller.py Overkapping close

Posted: **Saturday 18 April 2020 19:22**

Hi,

@Havym

You wrote:

Maybe i should mention it before but domoticz is run by user pi and not by root.

I have been focused on the fact that Domoticz runs as root, which is the case by default.
That changes the way we have to think and you can forget all previous links and suggestions.

I overlooked also an important error message:

IOError: [Errno 2] No such file or directory: 'remotes/Overkapping.txt'

I see also: -rwsr-xr-x 1 root root 4516 Apr 13 16:03 controller.py

I advise you to remove the setuid permission, as the controller.py is owned by root. Having setuid permission on root owned files opens your system to intrusion.

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sudo chmod 755 controller.py

And you can also change the ownership back to the pi user

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sudo chown pi.pi controller.py

Having done these things, have a look at: https://www.domoticz.com/forum/viewtopic.php?t=7465
The answer is probably there.

You need an intermediate script.

Change the script in Domoticz for ON to: ///home/pi/domoticz/scripts/controllerON.sh

Create a script in the scripts directory, called controllerON.sh

Contents controllerON.sh:

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#!/bin/sh
python controller.py Overkapping open > /dev/null 2>&1 &
exit 0

And the same with the script for OFF: ///home/pi/domoticz/scripts/controllerOFF.sh

Contents of controllerOFF.sh:

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#!/bin/sh
python controller.py Overkapping close > /dev/null 2>&1 &
exit 0

I hope you have success, but at least I wish you a nice weekend.

Regards

Posted: **Sunday 19 April 2020 19:45**

Thank you for your help. I found this topic before but didn't understand what to do. Thanks to you i do.
But still...

Here are my findings.

When i run in command line: sudo /home/pi/domoticz/scripts/overkappingclose.sh
or just /home/pi/domoticz/scripts/overkappingclose.sh the screen closes.

I updated the switch in domoticz with these: script:///home/pi/domoticz/scripts/overkappingclose.sh and nothing happens.
The logs gives no error but nothing happens.

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2020-04-19 19:35:58.340 Status: User: Admin initiated a switch command (153/Zonnescherm/On)
2020-04-19 19:35:58.545 Status: Executing script: /home/pi/domoticz/scripts/overkappingclose.sh

Ill keep on trying some other stuff. I dont know what i am doing wrong. Or i am just stupid

Maybe i can try to program the screen by a .sh file....

Piece of my domoticz config:

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PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
DESC="Domoticz Home Automation System"
NAME=domoticz
USERNAME=pi
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

DAEMON=/home/$USERNAME/domoticz/$NAME

Posted: **Sunday 19 April 2020 21:10**

@Havym

Hi,

One more check.

All files are now owned by user pi and group pi?
All scripts are executable?

Let's follow the procedure as described in the Wiki.

https://www.domoticz.com/wiki/Scripting_in_Domoticz

So,

Lets create a file called exec.sh:
User pi and group pi Make it executable
Contents:

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#! /bin/sh
/usr/bin/python /home/pi/domoticz/scripts/$1.py $2 $3 > /dev/null 2>&1 &

In Domoticz use the following command for On action:

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script://exec.sh controller Overkapping open

and for Off action:

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script://exec.sh controller Overkapping close

Let's try.

Regards

Posted: **Sunday 19 April 2020 22:13**

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pi@raspberrypi:~/domoticz/scripts $ ls -l exec.sh
-rwxr-xr-x 1 pi pi 84 Apr 19 22:04 exec.sh

Domoticz log:

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2020-04-19 22:09:17.348 Status: User: Admin initiated a switch command (153/Zonnescherm/Off)
2020-04-19 22:09:17.578 Status: Executing script: /home/pi/domoticz/scripts/exec.sh

Still nothing happens

When run in command line it works.

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pi@raspberrypi:~ $ /home/pi/domoticz/scripts/exec.sh controller Overkapping close

Posted: **Sunday 19 April 2020 22:18**

Hi

There must be something else, but what?

Let me think, what to do.

Regards

Posted: **Sunday 19 April 2020 23:14**

Hi,

Can you modify the exec.sh file as follows:

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#!/bin/sh
NOW=$(date +"%Y-%m-%d")
LOGFILE=/home/pi/controller.$NOW.log
echo $(date +"%Y-%m-%d %H:%M:%S") controller | tee -a $LOGFILE
/usr/bin/python /home/pi/domoticz/scripts/$1.py $2 $3 > /dev/null 2>&1 &

This will create a log file in your /home/pi directory.

Please try again and post the results

Regards

Posted: **Monday 20 April 2020 0:00**

Hi,

Here are the results when executed in domoticz. The first one was the one function and the second the off function.

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2020-04-19 23:57:36 controller
2020-04-19 23:57:43 controller

By command line the same:

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pi@raspberrypi:~ $ /home/pi/domoticz/scripts/exec.sh Overkapping close
2020-04-20 00:02:00 controller

Same as in the log file.

Domoticz

Adding Somfy blinds to domoticz using 433.92 crystal

Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal

Re: Adding Somfy blinds to domoticz using 433.92 crystal