Nello.IO Remote Intercom Integration (Solved)

Add-ons Bindings
1

Nello.IO is a pretty nifty device that adds remote capabilities to your old in-building intercom. In lieu of writing a full binding I built a small MQTT bridge that allows you to buzz people in using a MQTT message.

By simply running this bridge in a Docker container and using the OpenHAB MQTT binding you can buzz people in.

Switch EntryBuzzer { mqtt=“>[mybroker:home/nello:command:ON:OPEN a95a788a-e774-4561-8fc8-2225b3dccc21]” expire=“5s,command=OFF”

I hope this can come in handy for someone else!

1 Like
2

Hi,
I tried it today.
But I´ve problem, docker container is always restarting.

Log

2018-01-07T10:02:04.859555090Z Traceback (most recent call last):
2018-01-07T10:02:04.859603991Z   File "nello.py", line 41, in <module>
2018-01-07T10:02:04.859609192Z     client.connect(os.environ['MQTT_BROKER'], port, 60)
2018-01-07T10:02:04.859612592Z   File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 768, in connect
2018-01-07T10:02:04.859618292Z     return self.reconnect()
2018-01-07T10:02:04.859621492Z   File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 895, in reconnect
2018-01-07T10:02:04.859725496Z     sock = socket.create_connection((self._host, self._port), source_address=(self._bind_address, 0))
2018-01-07T10:02:04.859736996Z   File "/usr/local/lib/python2.7/socket.py", line 557, in create_connection
2018-01-07T10:02:04.859783397Z     for res in getaddrinfo(host, port, 0, SOCK_STREAM):
2018-01-07T10:02:04.859789398Z socket.gaierror: [Errno -2] Name or service not known
2018-01-07T10:02:09.114746167Z Traceback (most recent call last):
2018-01-07T10:02:09.114781969Z   File "nello.py", line 41, in <module>
2018-01-07T10:02:09.114786469Z     client.connect(os.environ['MQTT_BROKER'], port, 60)
2018-01-07T10:02:09.114789569Z   File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 768, in connect
2018-01-07T10:02:09.114795269Z     return self.reconnect()
2018-01-07T10:02:09.114798369Z   File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 895, in reconnect
2018-01-07T10:02:09.114904173Z     sock = socket.create_connection((self._host, self._port), source_address=(self._bind_address, 0))
2018-01-07T10:02:09.114917173Z   File "/usr/local/lib/python2.7/socket.py", line 557, in create_connection
2018-01-07T10:02:09.114956174Z     for res in getaddrinfo(host, port, 0, SOCK_STREAM):
2018-01-07T10:02:09.114988675Z socket.gaierror: [Errno -2] Name or service not known

any idea?

3

That looks like it can’t connect to your mqtt broker. Do you have one set up? Otherwise you can get one up by simply docker run --restart=always --name mosquitto -t -d -p 1883:1883 -p 9001:9001 eclipse-mosquitto. Then set MQTT_BROKER to the IP of your machine, localhost should also work.

4

Thx, I found the problem.
One small thing… something is wrong in this line:

Switch EntryBuzzer { mqtt=">[mybroker:home/nello:command:ON:OPEN a95a788a-e774-4561-8fc8-2225b3dccc21]" expire="5s,command=OFF" }

without

expire="5s,command=OFF"

it´s working.

5

Ok, found it :slight_smile:

Switch EntryBuzzer { mqtt=">[mybroker:home/nello:command:ON:OPEN a95a788a-e774-4561-8fc8-2225b3dccc21]" , expire="5s,command=OFF" }

Thx for the nello-integration

6

There is now also an API available for Nello.
https://nellopublicapi.docs.apiary.io/#

7

Hi,
I am also trying to use this binding but I’m not successful. The container is always restarting
(seems the underlying pynello has some problems with unicode characters).

Traceback (most recent call last):
  File "nello.py", line 43, in <module>
    client.loop_forever()
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 1481, in loop_forever
    rc = self.loop(timeout, max_packets)
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 1003, in loop
    rc = self.loop_read(max_packets)
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 1284, in loop_read
    rc = self._packet_read()
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 1849, in _packet_read
    rc = self._packet_handle()
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 2311, in _packet_handle
    return self._handle_connack()
  File "/usr/local/lib/python2.7/site-packages/paho/mqtt/client.py", line 2372, in _handle_connack
    self.on_connect(self, self._userdata, flags_dict, result)
  File "nello.py", line 12, in on_connect
    data = { "type": "location", "location_id": location.location_id, "address": location.address }
  File "/usr/local/lib/python2.7/site-packages/pynello/nello.py", line 115, in address
    country)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xdf' in position 13: ordinal not in range(128)
Connected to MQTT with result code 0
{"location_id": "redacted-752b-4dea-9c6d-redactedfbb4", "type": "location", "address": "redactedStr 123a  12345 Entenhausen, Deutschland"}

Someone knows what to do?
Also are there any plans to implement the new API?

8

Sounds great.
Do you get a signal if someone rings the bell as well or is this just about the buzzer?

9

Hi =) I have a Nello here and would be interessted in a solution to see if someone rings and where I can buzz people in =). Did someone make A binding therefore? =)