Category: Electrical Engineering

  • Alarm System Part 5: How to Hack a Home Security System

    Alarm System Part 5: How to Hack a Home Security System

    This Blog is part of a Series! Check out the rest if you haven’t already: You read that title. Not “What parts did I order and what struggles did I have” No. “How to hack”, which means we’re damned successful at it, But not so fast. Last I reported, the alarm on a board was…

  • Alarm System Part 4: The Keypad

    Alarm System Part 4: The Keypad

    This Blog is part of a Series! Check out the rest if you haven’t already: At this point, I’ve dumped the EEPROM off the panel, and discovered that there can be some data stored in the PIC Microcontroller on the panel as well. The datasheet for that is >300 pages, so I’m not planning on…

  • Alarm System Part 3: Security System – Dumping the EEPROM

    Alarm System Part 3: Security System – Dumping the EEPROM

    If you’re coming here looking for the dump, I can’t share it. I don’t know what the laws are on this and it feels pretty DMCA-ish. Sorry. This Blog is part of a Series! Check out the rest if you haven’t already: So, the EEPROM programmer arrived today. For that, I’m excited. And nothing warms…

  • Alarm System Part 2: Security System Teardown

    Alarm System Part 2: Security System Teardown

    This Blog is part of a Series! Check out the rest if you haven’t already: First things first, it was time to tear out the EEPROM since the reader is coming soon. What You’ll Need Finding PIN 1 This part is important — you can’t take a game cartridge and jam it in backwards because…

  • Alarm System Part 1: The old security system

    Alarm System Part 1: The old security system

    This Blog is part of a Series! Check out the rest if you haven’t already: I’ve recently built my own home security panel. For the code, STLs, and a rambling blog about it, look over here. What does a technology hoarder do with the old system components you probably didn’t ask? I took the existing…

  • Home Security & I’m Back

    Home Security & I’m Back

    This Blog is part of a Series! Check out the rest if you haven’t already: I’ve blogged for years on this domain, and every few years I get sick of WordPress or the server I’m hosting on, delete it, and don’t look back. This time is no different. By 2026 or so, this post should…