Open garage door via telephone

---

Hi @ll,

I successfully connected my garage door to pimatic with an intertechno cmr-500.
The garage door control has a potential-free contact which can be closed with the cmr-500.

The next challenge is to open the door with a telephone call for opening the door out of the car.
I figured to connect a relais to the analog port of my PBX (Fritzbox) to set a gpio of raspberry to low or high.
With a gpio contact/switch I could trigger the cmr-500.

The question is which relais I can use?
There is a solution, but it’s very expensive:
https://www.conrad.de/de/stromanschalterelais-metz-connect-sar1-ap-930508.html

Does anyone has experience in this subject?

what about using a simple relais like that
http://www.ebay.de/itm/nnel-H-L-Level-Triger-Optokoppler-Relaismodul-5V-Erweiterung-fur-Arduino-GT56/182174935088

in general, you know that using the intertechno protocol is not really safe for opening garage doors? if your neighbor has a remote with the same unit/id chosen for switching his sockets, he can open your doors without any problem! just fyi

The problem is the analog PBX connector with 32Volt AC on incoming calls.

Thanks for your tip, I think the emergency opening is a major risk

hm… 32V AC … well, if you still want to make use of the intertechno or another RF protocol you could try to take a RF remote and switch the door/gate.
another possibility could be to use the tasker app and an api call for pimatic to activate a rule and do some stuff with your doors or switch the cmr directly. just a thought that came into my mind… am not a tasker nerd but could be worth a try. maybe you can also have a button on your phone’s screen to trigger the garage door. could be a cool feature

@chrizzz86 said in Open garage door via telephone:

I figured to connect a relais to the analog port of my PBX (Fritzbox) to set a gpio of raspberry to low or high.

Wouldn’t it be easier to use the call monitor and trigger an action if an incoming call is signalled (with a specifc call origin and /or target as required)?

• http://www.wehavemorefun.de/fritzbox/Callmonitor
• https://github.com/tbasse/fritzbox-callmonitor

Ah sorry, garage door is the wrong word, it’s the entrance gate, so there’s not really a security risk.

@leader21 I will try the tasker app and give a feedback
@mwittig Good idea, the problem is, the telnet service has been deactivated by AVM since firmware 6.38

And when you have an iDevice and a Gateway(Apple TV/ from iOS10 iPad4 or never)
you could switch it via Homekit from outside of your home.

Maybe a feature request,
but cool would also be the licenseplate(kennzeichen) detection of motion.(webcam required)
So you could drive with your car along you entrace and the cam will detect your licenseplate and will just open the door to the plates you have give access…
Already thought about that when i build my home…

mfg
Chris

@chrizzz86 said in Open garage door via telephone:

Good idea, the problem is, the telnet service has been deactivated by AVM since firmware 6.38

Note, the Call Monitor still works as it is provided independently from the telnet service. Tested with FB7390 running 6.51

pi@raspi3:~/fritzbox-callmonitor $ node example.js
- Incoming
{ time: 1469597401, caller: '01511258XXXX', called: '704XXXX' }

- Connection Ended
{ type: 'inbound',
  start: 1469597401,
  caller: '01511258XXXX',
  called: '704XXXX',
  disconnect: 1469597404,
  duration: 0 }

@mwittig Yes, you’re right!

Just activate the call monitor by calling #96*5* and use the following script:

#!/bin/bash
while true;
do
 read logline
 for substr in 'alt' '\;RING\;'
 do
   if [[ "$logline" = *${substr}* ]]; then
     echo "Got a match"
     curl http://Username:Password@IP/api/device/DeviceX/toggle
   fi
 done
done

The problem is, when I try to toggle a normal homeduinorf switch the switch turns on in the gui but the physically device does not turn on?

@mwittig said in Open garage door via telephone:

Note, the Call Monitor still works

wouldn’t it be interesting to include this into the fritz-app or create a new plugin for that?

so you could get information about callers (maybe forward these information via push service then etc…) or as you are trying here trigger actions on calls. imagine some useful applications.

I changed the script “fritzbox_call.sh”

#!/bin/bash
while read logline
 do
   if [[ "$logline" = *"internal_number"* && "$logline" = *"mobile_phone_number"* ]]; then
     curl http://Username:Password@IP/api/device/Steckdose2/toggle
   fi
 done
done

Now I can define which external phone number is allow to toggle the device.

I start the script with:
nc FritzBox_IP 1012 | ./fritzbox_call.sh

How can I create a service for the command above?