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aqhomecontrol/README.md
Martin Preuss fb308ba9fc minor changes.
2026-01-18 14:28:16 +01:00

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Aquamaniac Home Control System (AqHCS)

Overview

Home automation/control system consists of multiple parts:

  • nodes

    • decentralized, nodes just broadcast measured data over a two-wire communication network (clock/data), addresses are auto-assigned, no prior setup necessary, no central bottleneck or single point of failure
    • node types
      • environmental measuring (temperature, humidty, CO2 and others)
      • motion detection, door/window sensors
      • LED strip controllers
    • small PCBs based on AVR microcontrollers
      • AtTiny84
      • AtTiny85
      • AtTiny841
      • AtMega644
    • modular operating system written in AVR assembler
    • event-driven GUI
    • driver modules for busses:
      • one-wire bus
      • two-wire-bus
      • SPI bus
      • UART
    • driver modules for devices/sensors:
      • DS18b20 sensors for temperature measurement
      • SI7021 sensors for temperature and humidity measurement
      • SGP_30 sensors for air quality measurement
      • ccs811 sensors for air quality measurement
      • SK6812 LED driver
      • I2C displays (work-in-progress)
      • SPI displays (work-in-progress)
  • applications

    • aqhome-data
      • TCP data service receiving sensor data
    • aqhome-nodes
      • service receiving sensor data via inter-node bus from nodes and forwarding that data to aqhome-data
    • aqhome-mqttlog
      • service exchanging data between aqhome-data service and a mqtt server
    • aqhome-react
      • service reacting to data received by aqhome-data (home automation service)
    • aqhome-tool
      • tool to manipulate aqhome-data (e.g. edit devices and values, add data points, create graphs from aqhome-data)
      • tool to flash firmware for nodes, list nodes
    • aqhome-cgi
      • HTTP service for user interaction with aqhome-data