Open AccessPaper counting display device based on STM32F103 single chip computer
Author(s) -
Li-Zhen Gao,
Fanmao Jiang,
Shihao Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/914/1/012043
Subject(s) - microcomputer , computer hardware , buzzer , computer science , software , reliability (semiconductor) , simple (philosophy) , chip , embedded system , alarm , engineering , electrical engineering , telecommunications , programming language , power (physics) , physics , quantum mechanics , philosophy , epistemology
This system uses the STM32F103 single-chip microcomputer as the control center, and the capacitance-to-digital converter FDC2214 collects the current paper value, performs data collection and transmits it to the main control single-chip microcomputer. Methods: Calculate accurate data through Kalman filtering, and accurately calculate and display the number of measured paper sheets on this basis. The device also sets a buzzer to accurately short circuit alarm. The circuit structure of the entire system is simple, and the reliability is high. Results: The system has high precision and fast speed, and can complete the basic requirements and expansion requirements of the problem. Although it is limited by time and venue, it can also have a high reference value for the design of practical applications such as detecting the number of banknotes. Conclusions: Experimental test results show that this design can complete the basic indicators required by the topic and play part of the content. This paper focuses on the hardware design, software design and test result analysis of the system.