VII. CONCLUSIONS
The system is based on the principle of Internet of things. The use of STM32 microcontroller, RFID-RC522 card reader, raspberry pi 3 is to achieve the intelligent management of the laboratory. In the practical application, the results are very good, the system greatly reduced the workload of staff. In the future development, the system could be developed with more features, such as student course information analysis, intelligent switch computer and other functions. The overall practicality, reliability of this system is great and it also has a great development prospects. Smart sign-in system will become the new style of teaching in the future
