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Design and Development of Low Cost and Portable Microcontroller Based Hygrometer
| Content Provider | Semantic Scholar |
|---|---|
| Author | Martuza, Kazi Golam Kabir, Humayun Hafiz, Farhana Akter, Fahmida Hoq, M. Ajijul Hasan, Mahedee Chowdhury, Abdul Mannan |
| Copyright Year | 2015 |
| Abstract | The hygrometer is widely used in air conditioner, humidity data logger, humidifier & dehumidifier etc. The aim of this research work is to design and development of a low cost, portable microcontroller based hygrometer. The hygrometer has been designed using the sensor module HSM-20G. The sensor operates in capacitive principle, i.e. changes in relative humidity (RH) of the surrounding air cause a change in dielectric constant of the polymer film leading to a change of sensor capacitance. The module converts this capacitance change into analog voltage. The HSM-20G sensor provides analog voltage for both temperature and humidity. The sensor is connected with PIC16F876A microcontroller, which converts the analog voltage into digital and display the result into 16 X 2 alphanumeric LCD display. The program is written in C language using mikro C PRO. The measuring accuracy of the humidity reading of our designed meter is negligible. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://iosrjournals.org/iosr-jeee/Papers/Vol10-issue3/Version-4/G010345056.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
