Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
There has been an increasing focus on health in the every day life of people. Air
pollution has been an increasing problem for a long time, the world is contin-
ually trying to solve the problems regarding emissions from cars and industry.
While it is important to reduce outdoor air pollution, people often forget to
think about indoor air quality. As the average person spends up to 80% of their
time indoors, poor indoor air quality can have a much bigger impact on health
than outdoor air.
In this thesis a battery based indoor-air-quality-sensor-system is developed
and prototyped which can help people become more aware of the air quality
they are spending most of their time in. This system gives an overview of the
air quality throughout the day and can alert users to take measures to improve
the air quality around them.
The system is designed for the consumer market as an addition to Sikom’s
system or as a standalone product. Software with roots in the Nordic develop-
ment packages and hardware has been created to realize the system. The system
uses a nRF52840 chip from Nordic Semiconductor, which processes, stores and
sends data via Bluetooth.
This thesis is a continuation of two previous projects which has laid the basis
for this project. The result of this project is a working product which is almost
ready for mass production. The device can sample and quantify air quality and
sends the data to the users smartphone via Bluetooth.
This project has been created in cooperation with Sikom. Sikom is a Nor-
wegian company that provides products for monitoring and control systems for
homes and cabins.
2018. , p. 80
Indoor air quality sensor, TVOC, eCO2, Bluetooth 5, Nordic Semiconductors, PCB-design, C