An IoT-Based Low-Cost Weather Monitoring and Alert System Using Node MCU

In environment, due to many factors, day by day pollution levels are increasing. So many natures’ gifts like air, water, etc. Air is polluted because of many factors like landfill sites, toxic gas release from factories, etc. Planting trees to reduce air pollution but for many reasons like roads expansion, building homes, and forming, humans are cutting trees. So air pollution is increasing. It will cause harmful effects to the living things in the society. The motto behind this is to intimate people in the society about environmental conditions like temperature, humidity, and air quality in the surrounding area. An IoT is a new era in the present world. With the help of IoT, this system has developed. It is a low-cost and high-efficient system. It can monitor environmental conditions for every 60 s and upload to the web server. If any harmful gases like Hydrocarbons (HC), Carbon monoxide (CO), Sulfur dioxide (SO2) and Nitrogen oxides (NOx) etc., are released into the environment from various factors, this system will give an alert message to the higher authorities and people living in nearest areas, and it will give the alarm in the surrounding areas.