Abstract
Problems with air pollution due to household waste, use of ammonia, combustion of motor vehicles, cigarette smoke and so on can affect air quality in Campus. The change of air quality can be known by using a gas sampler, however it has not been able to measure the air quality and record the data in real-time manner. For providing the air quality real-time and accessible online, we have established a compact device to measure air quality using the MQ-135 sensor Arduino based. The developed three of devices were carried outside of the campus's building to measure air quality at three specific area simultaneously. The number of data samples received by each device within 1 hour is 12 data. All data is sent from the devices to a web server. All information is accessible online by anyone who has a portable device. Air quality data has been collected for 5 consecutive days on 08-12 August 2018 at 09.00-14.00 West of Indonesia Time. The result indicated that the air quality in those three areas included in the medium category with ranges of air quality value in 51-100 ppm. This device can carry out its functions, such taking the air quality values per category, in differ location, with graphical form, and provide real-time information. It has a compact shape that need right material for outside and suitable power supply.
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