You can watch a quick demonstration of this example in this short video. Then the LEDs are illuminated depending on the status of the tag at the reader. The function readTags() takes care of the actual reading of the tags/cards, by placing the currently-read tag number into an array which is them used in the comparison function checkmytags(). Notice that the allowed tag numbers are listed at the top of the sketch, you can always add your own and more – as long as you add them to the list in the function checkmytags() which determines if the card being read is allowed or to be denied. Next, upload the following sketch to your Arduino and open the serial monitor window in the IDE: // - #include SoftwareSerial RFID(2, 3) // RX and TX int i void setup() // - In the sketch we have a few functions that take care of reading and comparing RFID tags.

Some key or tag examples are shown in the image above. This uses power from a magnetic field associated with the lock. We will be using a passive key, which is an integrated circuit and a small aerial. The key is the tag, card or other small device we carry around or have in our vehicles. It is up to our Arduino sketch to determine what happens when the number is read by the lock. Instead of the key having a unique pattern, RFID keys hold a series of unique numbers which are read by the lock. To explain RFID for the layperson, we can use a key and lock analogy. For example, with electronic vehicle tolling, door access control, public transport fare systems and so on. Some of us have already used these things, and they have become part of everyday life.

Updated Introduction RFID – radio frequency identification. This is chapter fifteen of our huge Arduino tutorial series. If you have an Innovations ID-12 or ID-20 RFID reader, we have a different tutorial for you. In this instalment we use an RDM630 or RDM6300 RFID reader. Learn how to use RFID readers with your Arduino.

Rfid reader library for proteus