Have you ever wanted a system that keeps track of the time at which your employees arrive to work, have you ever wanted to check the time at which a person enters your room (I have), this device aims to make all of that as simple as possible. RFIDDropboxLogger will keep track of everyone scanning an RFID card using an RFID module and will write to Dropbox whenever it happens to keep you updated with all the information. Thanks to IFTTT, this is all possible and easy to do.
The rest of the story together with instructions to construct the project can be found here - https://www.hackster.io/andreiflorian/rfid-dropbox-logger-3da342