In this tutorial, we will use an RFID tag reader writer with Raspberry.
The abbreviation RFID stands for Radio Frequency IDentification, as the name suggests is a system for the identification of objects, people or animals by means of radio frequency.
The basic system requires a reader and a tag or transponder, previously programmed to contain the information.
The tags can be supplied (Tag Active) or not (Passive Tag), in this guide we will use passive tags.
When the reader and the tag are near, the tag is activated and returns his information.