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Digital Portable Weather Station Monitoring System Using Arduino Uno

Semiconductor Science and Information Devices 2021年第1期3卷 33-40页

作者： Bibek Dhungana Mahesh sharma Rajesh Shrestha Tri-chandra Multiple College TUGhantagharNepal

The temperature,humidity,atmospheric pressure and altitude are the most important parameters of the *** those parameters are known,it will help to select the best crops for specific location which increases the productivity in agricultural *** is very useful for countries like Nepal where the most of people in this country depends on *** this research,an Arduino based device is constructed which measures those parameters and record the data in real *** DHT22 and BMP180 sensors are used for measuring those parameters whereas RTC and SD Card module is used to record the data in real *** can be displayed on LCD and serial monitor of computer or *** data were collected at Tri-chandra Multiple College,Ghantaghar and at Gaurighat,Chabahil with the help of Arduino based *** this project,the digital portable weather station monitoring system has been designed and data from this device compared with the data obtained from HTC-2 standard device and error analysis has been done.

关键词： Temperature Humidity Pressure Altitude Arduino UNO LCD

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Air Pollution Monitoring System Using Micro Controller Atmega 32A and MQ135 Gas Sensor at chandragiri Municipality of Kathmandu City

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Semiconductor Science and Information Devices 2022年第2期4卷 35-44页

作者： Rajesh Shrestha Manik Maharjan Mahesh sharma Tri-chandra Multiple Campus KathmanduNepal

Air is one of the essential elements of human’s *** earth’s atmosphere is full of air which contains gases such as Nitrogen,Oxygen,Carbon Monoxide and traces of some rare *** quality of the air has been degrading for some decades due to various activities conducted by the human beings that directly or indirectly affect the atmosphere leading to the air *** are different techniques to measure air ***,with the evolution of time the expensive and less efficient analog devices have been replaced by more efficient and less expensive electronics *** this research,MQ135 sensor is used to measure air quality of a particular location.I2C display is used to monitor the ***,with the increasing in number of vehicles,unplanned urbanization and rapid population growth,air pollution has considerably increased in the last decades in various areas of ***,this project‘Air Pollution Monitoring System’was focused on collection of the data specific location of chandragiri municipality of Kathmandu *** conclusion,analysis of the data is done with the help of origin software which shows that the Arduino device in this device works perfectly for measuring the air *** quality of the selected area is found to be less than 500 PPM which concludes that the air quality of this area is normal.

关键词： Arduino Uno MQ135 sensor Air pollution I2C display Atmosphere

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Designing of the Wireless Digital Portable Temperature and Humidity Monitoring Device and Analyzing Data at Different Part of Kathmandu Valley

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Semiconductor Science and Information Devices 2021年第1期3卷 41-48页

作者： Sabina Bogati Mahesh sharma Rajesh Shrestha Tri-chandra Multiple College TUGhantagharNepal

The atmosphere of planet plays a great role in numerous weather phenomena which affects our life *** understand these phenomena,it requires knowledge about the relation between temperature and *** effects of temperature on humidity influence the potential for precipi*** also directly influences the human health and *** humidity and dew point are the two parameters that are used by the meteorologists for understanding the interaction between temperature and humid*** there is a necessary of a smart monitoring system which is fully automated,accurate and capable enough to monitor all the parameters with ***,it should be portable and less *** this purpose,the digital portable wireless temperature and humidity monitoring device is *** project consists of HC-05 Bluetooth module,DHT-11,Arduino UNO,16 X 2 LCD,and *** data are recorded at different part of Kathmandu Valley with this device wirelessly by using smartphone and analyze it with the help of Origin software.

关键词： Arduino UNO HC-05 Bluetooth module 16 x 2 LCD DHT-11 sensor and wireless

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Design of Digital Solar Water Pump Using Microcontroller ATmega 32

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Electrical Science & Engineering 2022年第2期4卷 11-24页

作者： Rajesh Shrestha Arun Raj Dhakal Saroj Thakur Dipak Subedi Mahesh sharma Tri-chandra Multiple College GhantagharNepal Patan Multiple College PatanNepal

This paper focuses on the application of solar energy along with microcontrollers to design and run a motor to pump water from various *** solar water pump is one of the applications or appliance that perform task with the use of solar *** solar water pump consists of solar PV array,solar pump,inverter,AC water pumping device *** energy radiation is converted in electrical current or power source which is then used to run a pump and draw water directly from ground,wells,rivers,lakes *** this paper,the relationship between flow rate of the water and luminous intensity of the solar irradiance is studied and the data are linearly fitted to find out the correlation between these *** the study about efficiency of the solar powered water pump shows that the operation of this type of pumping system is quite efficient than other types of fossil fuel engines like diesel,petrol,kerosene *** long *** use of Arduino Uno,flow sensor,LDR sensors in the solar powered water pump helps to analyze the relation between these parameters and know the conditions favorable for excess supply of water in short time *** solar powered devices are the future of clean and green future of this *** it is not only necessary but also compulsory to enhance the usage of solar energy throughout the globe.

关键词： Solar PV array LDR sensor Water flow sensors Arduino Uno and Liquid Crystal display

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