An automated window controller
This project is part of a course at the University of Applied Sciences (HAW) Hamburg. The general purpose of the course is to find ways to enhance the classroom environment using RIOT. The easiest way to counteract any bad classroom atmosphere is to open or close one or multiple windows. Thus increasing the students' ability to concentrate.
Multiple factors can be taken into consideration to determine whether a window should be opened or closed:
- air quality
- temperature
- street noise
- humidity
- rain
- outside windspeed
To accomplish our goal we defined criteria that have to be met to trigger the opening or closing of a window. Sensors measure the physical value of the aforementioned factors. And actuators physically open and close a window.
For the purpose of this course we used a simple window model consisting of an aluminum frame and a picture sized glass plate.
The following hardware is used:
- RaspberrPi B+ with 6LoWPAN radio:
- [Phytec phyWAVE KW22] (https://github.com/RIOT-OS/RIOT/wiki/Board%3A-Phytec-phyWAVE-KW22) with the following sensors:
- MPL3115A2 (temperature)
- SEN0114 (humidity)
- LMV324 (sound/noise)
- MQ_135 (gas sensor/air quality)
- SG90 (stepping motor)
- window model
The software in this project follows a simple layer architecure. This is not strictly following the OSI model.
| Layer | Software | Hardware |
|---|---|---|
| Presentation | HTML | RasPi |
| Application | Python Webserver | RasPi |
| Data Storage | MySQL Database | RasPi |
| Logic | Window Controller (C++) | RasPi |
| Network | C/C++ programs | RasPi/Phytec |
| Physical | C program | Phytec/Sensors |
