If we could detect MAC addresses ove the local wifi connection, with an occasional ping, like arp-scan, it could be used for alarm system setting, where all known mobile phone MAC addresses would trigger the shutting down of a security system.
The triggers could also be used to notify when a person is within range, or even as a time clock system for employees.
Show all MAC addresses on the network, detect all those on a friend list. If a friend disconnects, ping them to make sure it is not a device going to sleep. After two missed pings, flag that friend as off the premises, triggering whatever notification you want.
Thatâs a pretty cool idea. When the API is released you can definitely get this working on a raspberry pi with a python script that sends data to the cayenne servers. It doesnât look like there is any easy way to run an arp from an Arduino, at least that I could find.
As Iâm starting to use Cayenne (RPi3) to use as a home automation system (before I was using PLC), this âgeofencingâ idea is just great! At this moment I have a 3 level self made security system, depending on the range away from my home (level 1 warning = x meters from my home, etc.). We need to disable or enable the alarm system every time by our selfâs.
Would be a great feature to create a secured (friend) list of mobile phones to automate the security system.
Searching the net, there are a few people who have made something like this, but Iâm struggling to get a system going myself.
Using arp-scan in Python works, but the Rpi3 inbuilt wifi will not work as it doesnât have monitor mode. A separate wifi dongle works fine.
There are four Android devices in my home that I want to detect. Three of them work fine, but one will not respond to ping requests if it is in standby mode.
I would like to detects wifi packets, but if a white listed device is missing, to then ping it as a sort of check sum before we can definitively say it is not in the area.
A Python library is installed. Scripts call the ISStreamer from the library and passes variables to the streamer. The IS website represents those variables in a number of formats, just like Cayenne.
Cayenne does the whole job, finds the sensor, displays the data, triggers the output device. Being able to pass variables to Cayenne from a Python script would be highly desirable.
Cayenne works fantastically for some applications, but almost controls too much in some instances. I have a custom button / led board that I control from Python. I can control it from Cayenne also, but I canât do both at the same time.
If there was a Python library that would allow me to interact with Cayenne, I could write the code that passes the variables to Cayenne, then use the full power of Cayenne to record data and set triggers.
