Smart-Home Reverse Engineering and Automation
an idea by pstivanin
Updated about 13 hours ago. 4 hacker ♥️. 5 followers. Has no hacker: grab it!

Description

This project focuses on expanding smart-home automation by reverse-engineering several closed systems, developing missing integrations, and unifying them into a fully automated Home Assistant environment. The work includes protocol analysis, custom API design, and deep automation logic, combined with improvements to monitoring and camera workflows. The outcome will be a coherent ecosystem with enhanced control, transparency, and automation for heating, circulation, security, and access systems.

Goals

Samsung EHS

  • Add the Elfin-EW11 to the hydronic module (F1/F2)
  • Install the EHS integration and set it up
  • Add automation and dashboards for anti-legionella, temperatures, COP, etc

Grundfos Recirculation Pump

  • Disassemble the pump and add the custom PCB
  • Write ESPHome firmware
  • Integrate the pump into HA with simple and advanced automation modes (e.g. shower, anti-legionella, etc)

External Gate Automation

  • Add two Shelly relays (pedestrian + full-open).
  • Implement arrival automation, remote access, and safety timers.

Extra goals

  • Look into influxdb and grafana for storing long term data like PV
  • Look into an outdoor air quality monitor so that I can better control my CMV

Done

Garage Door Automation

  • Add a Shelly relay for control
  • Add optional open/close detection.
  • Implement routines such as auto-close, geofence open, timeout warning.

Camera Dashboard

  • Add WebRTC real-time feeds.
  • Add controls for lights, sirens, strobe, and presets.
  • Create a multi-camera layout optimized for mobile and desktop.
  • Show IVS events (tripwire, intrusion).

Pellet Stove

  • Reverse engineer the WINET protocol.
  • Implement structured sensor parsing (temperatures, status, alarms).
  • Implement command support for ON/OFF, power level, fan, and shutdown.
  • Create robust automations for daily routines and error handling.

Dahua Event Proxy Server

  • Develop a Python server to receive IVS/AI events and snapshots.
  • Normalize and forward events to a Home Assistant webhook.
  • Add debugging and logging features.
  • Test and deploy the code

CMV

  • Reverse engineer UTEK RC-TOP2 modbus connect
  • Write a custom integration for home assistant
  • Add a dashboard for controlling the machine, schedules, power, etc

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home-assistant homeassistant

This project is part of:

Hack Week 25

Activity

  • 7 days ago: FSzekely liked this project.
  • 7 days ago: pdostal liked this project.
  • 7 days ago: frantisek.simorda liked this project.
  • 7 days ago: emiler liked this project.
  • 8 days ago: pstivanin added keyword "homeassistant" to this project.
  • 8 days ago: pstivanin added keyword "home-assistant" to this project.
  • 8 days ago: pstivanin originated this project.


    • Comments

    • pstivanin
      4 days ago by pstivanin | Reply

      Day 1:

      • morning: added a shelly 1 gen4 and an Aqara zigbee tilt sensor to the garage door. Both are fully working and well integrated in HA
      • afternoon:
        • studied the CAME manual and bought the needed hardware for the automation. Will take a couple of days for everything to arrive.
        • added my Dahua cameras to HA via go2rtc and webrtc-card. By default it's using the substream, but clicking on the top-right corner it will switch to main stream
        • added warning lights and sirens control via HA (restful)
        • now I needed to develop a small proxy server that will receive IVS/tripwire events from the NVR and will forward them to HA using webhook. From HA I can then do smarter things like arming/disarming the cameras, trigger sirens and lights if someone has been detected, etc

    • pstivanin
      3 days ago by pstivanin | Reply

      Day 2:

      • morning:
        • I was finally able to fix a longstanding compilation issue on TW for phd2 and astrometry-net packages. PRs made to both upstreams.
        • unforeseen tasks: upgraded switch's firmware; upgrade opencloud to v4.0.0
      • afternoon:
        • pellet stove was easier than expected to reverse. It has a simple web app doing GET requests every 1s with some parameters. I can't really control much (temperature and power), but I do get all the info I actually need: temperature, power, fan speed, current status, alarms, working hours, etc
        • work on the proxy is going well. It's almost over, tomorrow I'll test it. Code looks good and simple

    • pstivanin
      1 day ago by pstivanin | Reply

      Day 3:

      • morning:
        • had to handle some FOSS contributions and debugging (phd2 + astrometry) from yesterday's PRs. Also did some updates in my devel prj
        • I've wired an Aqara T2 (zigbee) to an Ajax DoorProtect Fibra and then this fibra device to the Ajax's hub. In this way, I can use HA to trigger the Ajax sirens when I want. Little nice hack so I don't have to buy 3rd party sirens for my cameras
      • afternoon:
        • finished coding the proxy server and deployed it
        • started reading the modbus manual of my CMV and doing some reversing since the codes are not really 100% correct

    • pstivanin
      about 13 hours ago by pstivanin | Reply

      Day 4:

      • morning:
        • NVR proxy works fine. It's forwarding events to HA webhook, that's good. Next step is to set up notification and alarms in HA itself. I had to fix a concurrency issue so I had to restart the proxy xD
        • yesterday evening I read the modbus manual for my UTEK RC TOP 2. I tried some commands and they mostly work but no all codes are mapped correctly, so I need to debug and investigate.
      • afternoon:
        • finished work on CMV, now fully implemented
        • finshed work on proxy, now fully working. Only arm/disarm/notification bits are missing

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