This project can be greatly exploited by companies as this device records the entry and exit times of workers by fingerprint only. When the worker enters the institution, he puts his fingerprint in the device and this only takes just seconds.
The device puts the date and time it was entered into an external SD memory card and when it exits the same thing puts its fingerprint and goes out, the device adds the time of its exit.
Later, at the end of the month, for example, the memory card is removed from the device and placed in the computer, in which he will find several files, each file for the timings of one of the workers, and the file contains the date of the day, the time of entry and exit of the worker, and the duration of work that day in minutes.
Currently, the device can add 5 workers in it, which I seek to develop in the future to accommodate more than 50.
Among the features of the device:
Easy to program, simple steps can change fingerprints
small size
Internal backup battery
The device works by means of a phone charger
Other methods can be used to record workers’s time, such as a RFID card, for example, but the fingerprint remains the best because only the worker himself can record the time and he does not need to carry anything with him.