SISTEM MONITORING KUALITAS UDARA MENGGUNAKAN NODEMCU DENGAN METODE DECISION TREE C4.5 BERBASIS WEBSITE

Air has several different gases depending on the place, season, and day or night. In addition to oxygen and, nitrogen there are gases and other substances such as carbon dioxide, carbon monoxide, bacteria, viruses and so on which are commonly referred to as air pollutants. If the air pollutant has exceeded normal limits, it can interfere with health. In plain view, air pollutants cannot be detected immediately. To overcome this problem, the existence of a device that can carry out the process of monitoring air quality can help the public to see the air quality in real-time. The sensors used to read air quality results are MQ-7, MQ-135, MQ-2, and SHARP GP2Y1010AU0F. The test results on the website have been made to run normally and are following the Air Pollution Standard Index (ISPU). On the serial monitor and the web monitoring the reception of data from the sensor runs normally depending on the server signal used