Posts tagged: security-alarm

I’ve decided to completely rebuild my DIY alarm system. Mean Well UPS supply instead of C-TEK charger Bigger battery in dedicated cabinet Arduino Mega as core, Raspberry Pi only as MQTT relay …

The keypad, or alarm panel, is an important part of a security alarm system. When I first got started building mine — I settled for a cheap and simple Zigbee keypad. I’ve since replaced it with a …

Quick recap: I’m building a DIY security alarm using a Raspberry Pi, hardwired PIR sensors, and MQTT integration with Home Assistant. Hello again — it seems to be close to a year since I last managed …

In November last year — I started building a DIY security alarm system, using a Raspberry Pi as the controller. My plan was to make a self-sustained system, using proper alarm hardware — like PIR …

Using a few cheap sensors, a wireless keypad, Zigbee2MQTT and Home Assistant; I was able to get a basic security alarm up and running during a free afternoon 🙂

Portal alarm box unit, my main project on technical college.

Keypad with programmable PIN code, two outputs (modes) and protection against repeated incorrect PINs. Uses an AVR ATtiny2313 microcontroller.

A simple intruder alarm controller I build and used in my old apartment. Uses an AVR ATtiny2313 microcontroller.