RFID tag present or removed ? Arduino MFRC522 tutorial

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In this tutorial, I have explained how you can detect the presence or absence of RFID tags using the MFRC522 RFID card Reading module, Arduino and LEDs. This video also explains the specification of the MFRC522 RFID card reader and a discussion on how to increase the range of the reader.

The topics covered in this video are,
1: 00:00:00 Why we need to detect the presence or removal of RFID cards?
2: 00:02:00 What is RFID?
3: 00:02:10 MFRC522 RFID card Reader specifications?
4: 00:02:28 How to increase RFID range?
5: 00:02:28 Active RFID Tags vs Passive RFID tags.
6: 00:02:45 MFRC522 interfacing with Arduino.
7: 00:05:09 install library.
8: 00:05:20 code.
9: 00:08:35 Results

RFID based attendance system tutorial:
https://youtu.be/Kar10-RkuJ8

code and blog for this video:
http://bit.ly/2W6cfQq

Sponsored by win-source electronics:
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DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I will receive a small commission. This helps support the channel and allows me to continue to make videos like this. Thank you for your support!
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