TecnoAlarm is a house alarm system. The input devices are communicating with the main node of the system via an RS 485 bus. In order to be able to plug in such systems in a house automation system, its communication protocol needs to be reverse engineered.

Expected deliverables: an open source library implementing the protocol

Warning: this may take several hackweeks to get something useful

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This project is part of:

Hack Week 16

Activity

  • 11 months ago: remydiy liked this project.
  • 11 months ago: remydiy joined this project.
  • almost 3 years ago: aleszuin1 joined this project.
  • about 3 years ago: francescov76 joined this project.
  • over 3 years ago: postart liked this project.
  • over 3 years ago: postart joined this project.
  • over 4 years ago: rexter liked this project.
  • over 4 years ago: rexter joined this project.
  • over 4 years ago: psychowood liked this project.
  • over 4 years ago: mbrugger liked this project.
  • over 4 years ago: jmoellers liked this project.
  • over 4 years ago: ldevulder liked this project.
  • over 4 years ago: cbosdonnat started this project.
  • over 4 years ago: cbosdonnat originated this project.

  • Comments

    • psychowood
      over 4 years ago by psychowood | Reply

      Count me interested, even if I'd prefer a reverse engineering of the TCP/IP protocol instead of the RS Bus since its OOTB functionalities are quite usable for simple home automations projects (currently using it to power on/off appliances, lights, home heating).

    • rexter
      over 4 years ago by rexter | Reply

      Don't know how this platform works. Can contact you to ask for updates?

    • cbosdonnat
      almost 4 years ago by cbosdonnat | Reply

      @psychowood, I planned on the RS Bus because my installation is rather old TP14 and doesn't have TCP/IP module

    • postart
      over 3 years ago by postart | Reply

      Hi All, I have done some work on reversing the rs485 protocol. I have reversed some messages and would like to share my results if anyone is interested.

      • remydiy
        11 months ago by remydiy | Reply

        Hi postart, Would it be possible to share your findings please? I've just purchased a rs485 converter into TTL and a logic analyzer. having your stuff will help me to extend my old TP6 Danke

    • aleszuin1
      almost 3 years ago by aleszuin1 | Reply

      Hi all, someone know if there is some "legal constraint" on doing it at "educational purpose"? i own a tp4-20, my idea on hardware side is to connect rs485 port to arduino/esp8266 to bridge serial protocol over TCP/IP then try to log+reverse protocol and create an adapter for HomeAssistant. Ciao

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