smshandler

Python script watching a MQTT topic and send msg to SMS

Could be used for sending notifications to sms from a home automation platform such as Home Asssitant etc.

Listens to topic /sms/

Dependencies:

pip3 install python-gsmmodem-new paho-mqtt

Set config parameters to tty for the modems serial interface as well as parameters needed for mqtt

To send a sms to a phonebook number:

1. Edit the phonebook dictionary and add names and numbers to all persons
2. Send a MQTT message to topic /sms/name

To send a sms to all numbers in phonebook

1. Send a MQTT message to topic /sms/all

To send a sms to any number

1. Send a MQTT message to topic /sms/xxxxxxxxxxx The number will be translated to +xxxxxxxxxxx, no plus sign in the topic

Receive sms

Messages can also be received. Received messages will be sent to the MQTT topic '/smsreceived' on the format b'{"from":"+NUMBER","datetime":"2020-08-14 18:44:52+02:00","text":"Sms message"}'. +NUMBER will be replaced by a name if the NUMBER is available in the phonebook.

Docker

A docker file provided to build a docker image.

Run sudo docker build -t smshandler . to create a docker image. Run sudo docker run -d --name smshandler --device /dev/ttyUSB2:/dev/ttyUSB2 smshandler to start a docker container from the image. Make sure to find out what tty your modem uses. You could use this guide to tie your modem to always use the same device, https://unix.stackexchange.com/questions/66901/how-to-bind-usb-device-under-a-static-name.