Next I wanted the ability to use any kind of sensor and hardware - wired and wireless. I needed something a bit more powerful, and with wired Ethernet - I didn’t want to rely on Wi-Fi, especially inside a grounded metal cabinet 😛 Raspberry Pi Zero W and self-built interface circuit board I started with a Raspberry Pi Zero W, but later changed to a Raspberry Pi 3+. Enter the Raspberry Pi - it has a generous amount of GPIO pins, and libraries to make them easily accessible from a Python script. I wanted to use a controller I could SSH into and easily make changes and adjustments.

But the overall goal stayed the same, let’s go through that now. Like I wrote my plan changed multiple times. Making my own alarm system seemed like a cool challenge, that would eventually result in something useful 🙂 The plan To add insult to injury they both got fined last year for cooperation that restricts competition 😞 Combined they got fined 1.233 million NOK. While offering no integrations with things like Home Assistant - they want you vendor locked to their system. They charge an absurdly high monthly fee, and seems dedicated to get as much money from you as they possibly can.

Yes Verisure and Sector Alarm - I’m talking about you guys. I’ve wanted a security alarm system for a while now, but I loathe the companies providing it here in Norway. I will be splitting it up into multiple posts starting at the beginning 🙂 Why? This is one blog post I’ve been putting of for a while - there is just so much to tell, and the system is still a work-in-progress. This is a pretty long story, with some twists and turns - let’s get into it 👇 I wanted the system to be as redundant and fault-tolerant as I could make it. Integration with Home Assistant would be an add-on, not a requirement. My plan was to make a self-sustained system, using proper alarm hardware - like PIR sensors and sirens.

In November last year - I started building a DIY security alarm system, using a Raspberry Pi as the controller. This post is part of the DIY security alarm series.

Home assistant raspberry pi zero wifi