Get MAC address of all devices connected to home network

Question

I am looking to get a list of all connected devices’ MAC address so I can receive a text message when my housemate returns gone when I’m not in the house.
I can use Twilio for the text message, cron on a raspberry pie to automate the task. I just need to establish how to get all MAC addresses connected to our home network.
Any help appreciated 😘

Answer 1

If you are admin of the router you use at home device you can login and see established connections

Answer 2

I believe youre asking about "arp" tables. This will return a list of devices, their IP address and their respective MAC address