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In this paper we shall describe how to help people in commercial property management with answering the question: are hobby and DIY solutions based on inexpensive microcontrollers good enough and are they capable to manage the energy efficiency of commercial buildings. System is based on network of PIR movement sensors, door and window sensors, lights sensors and finally air quality sensors (temperature, humidity, dust or CO2) and cheap Wi-Fi microcontrollers. This embedded system will turn off the AC if the room is empty and the window is open or turn the light on after someone enter the room on poor daylight or turn off the light if the motion detector has not been activated for more than 15 minutes.
ESP826, Wi-Fi, commercial property management, Building Air Quality, building energy management
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