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Domoticz is a very easy and powerful controller for domotic systems, accessible by web browser and android/iOS app.
Raspberry is a single board mini computer, low power (less than 10 watt), with quad-core ARM processor, suitable for home automation.
DomBus1 is a device that can be placed into wall junction box to control lights, pumps, valves, and read inputs like door/window/blind magnetic sensors (for alarm), PIRs (for alarm and presence), door bell button, .... It's connected to Raspberry controller by a thin cable within 4 wires (for alarm, or better for RS485): 2 wires for data (RS485 at 115200bps, that permits to cover up to 1km), 2 wires for 12V power supply (better if battery backupped)
The RS485 solution permits to:
avoid RF pollution (caused by WiFi and other wireless systems)
use a thin cable to interconnect all devices via bus
supply all devices by a battery backupped 12V power supply, so the home automation system will works even in case of blackout
Also, this system is optimized for low power consumption:
Raspberry consumes less than 10 watt
DomBus1 consumes 0.050W in standby and 0.5W when all 3 relays are ON. Just to compare, Sonoff Dual R2 consumes 1.2W in standby and more than 2W with only 2 relays ON.
and is really plug&play: just connect a new DomBus device to the bus, and you can find in the Domoticz Switches Panel that device: change its hardware address from the switch panel to assign a unique address, and all inputs/outputs/sensors will be automatically available in Domoticz automatically.
What can you do with Domoticz?
Control indoor and outdoor lights
Make a reliable and full-feature alarm system, that shows status on the phone (Telegram app) and send pictures/videos in case of any event you want.
Send a picture on smartphone when someone ring the bell
Control the gate and pedestrian gate, to open them remotely
Control the heat pump or other heater/cooler: no need for thermostat in every room, but just a invisible thermal sensor in every room
During the winter, activates electric heaters if solar photovoltaic produce more power than usage power
If heat pump and solar photovoltaic are installed, optimize the power consumption by regulating the heat pump on the available power from solar PV
If ventilation system is installed, regulates it controlling the humidity of the rooms, and activating the dehumidifier (and cooling coil, if available) during the summer when solar power is available
Check the level of rainwater tank and control a valve/pump for watering the garden
Connect to a meteo station and grab data of rain, wind, temperature, humidity, pressure, in nice graphs
Optional available products
Raspberry PI4 official case, red/white, made in UK
5V 3A adapter, to supply Raspberry
USB type-C cable to connect 5V adapter to Raspberry (needed to connect the 5V 3A adapter to Raspberry
One of the available 2A switching step-down regulators to reduce the 13.8V (battery voltage) to 5V, to supply Raspberry: suitable when a 12V battery with a battery charger/supplier is used to supply the home automation system
more DomBus devices to manage more inputs, outputs and sensors
DomESP1 + ESP8266 module, when you need to control devices/sensors through a WiFi connection (standby power: 0.5W)
Stay tuned with our DomBus products for the home automation! Join the Telegram group DomBus!!
With DomBus products, Raspberry and Domoticz, you can get a powerful and cost-effective home automation system to control:
complete home alarm system, with all notifications on smartphone
efficient heating/cooling/ventilation HVAC system control
power optimization in case of using a heat pump with photovoltaic
when someone rings the doorbell, send to smartphone a notification with a photo (if an IPCAM is available); also permits to open the gate or door by smartphone
shows the rainwater tank level, and control the garden watering