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tele-dacha

Scripts which collect and monitor environmental/consumption data of a country house for almost 10 years.

Intentionally written in Bash ("old fashion" busybox dialect), with minimal support of external libs, to run it on any cheap "busyboxes" (re-programmed routers).
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System overview

The system comprises a network of ~30 sensors / actuators, a few USB webcams and a few linux boxes which 24x7 monitor/analyze data, trigger event messages and commands to the actuators.

The main controller for the sensors network is "toledo" host, a cheap D-Link router running OpenWrt. It is capable of controlling sensors / actuators autonomously (i.e. with other hosts and Internet disconnected) or at request of other hosts (i.e. "palermo").
The "palermo" hosts, an old EeePc notebook running Debian, processes the data from toledo and webcams and communicates to the world over GSM network.

Sensors and actuators

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Dallas 1-Wire network
  • Temperature sensors in rooms
  • Temperature sensors on heat supply and return lines
  • Temperature sensors on hot water lines
  • Outdoor and underfloor temperature sensors
  • Humidity sensors - indoor and outdoor
  • 220v sensors and actuators on floor heating system valves
  • Power on/off switch for the in-house ventilation system
  • Heat Pump control sensors and switches
  • Counters on the Water-meter and Electricity-meter
  • undisclosed security sensors

In total, a couple of dozens self-made and self-mounted devices (electrical circuits) which incorporates ~thirty 1-Wire chips. Plus [a few hundred meters of cat5 cable](tele-dacha/assets/imgs/wiring scheme.pdf) that connects these circuits all over the house.

Hots and software:

palermo (alias - vkhome-fi)

the main server
An old EeePc notebook running Debian.
Slightly modified heatsink, a circuit added that "presses" the power-on button on mains power returns.
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Running services:

  • rsyslog server
  • collectd server (with rrdtools)
  • Web server (Apache2, CGI scripts)
  • MQTT server (mosquitto) for localnet
  • Bridge (scripts) to a cloud MQTT server
  • motion (CCTV) server
  • UPS control server
  • 1W-Sys monitors (alarms and event generatig scripts)
  • Scripts monitoring hosts
  • SSH server, remote access proxy, network router and firewall...
  • client (gateway) to email (gmail), Telegram messenger
toledo

interface to the 1-Wire network
A cheap D-Link router running OpenWRT with attached 1-Wire network adapter.
No hardware modifications made.

Running services:

  • OWFS (One-Wire File System) server
  • 1W-Sys server (scripts controlling One-Wire devices)
  • rsyslog client (streaming to Palermo)
  • MQTT client (streaming to Palermo)
  • SSH server, axillary remote access proxy
napoli (alias 1w-server)

network switch and USB cam streamer
A cheap D-Link router running OpenWRT with attached USB Web-cams.
No hardware modifications made.

Running services:

  • mjpeg-streamer server
  • rsyslog client (streaming to Palermo)
  • SSH server
  • network switch
Remote and cloud servers
  • remote (private) access proxy - provides ssh tunnels for webserver@toledo, CCTV streaming and maintenance tasks
  • (free) public cloud MQTT server - re-translates telemetry data from toledo to rome
  • rome (remote private host) - logs telemetry data via the cloud MQTT server