Arduino Tutorial for Beginners 16 - RFID Tutorial RC522 with Arduino Uno

Welcome to this video on Arduino Tutorial for Beginners. This video about RFID module. So we will see How to use Arduino and RFID.
This video shows how to use RFID module, and check RFID card to turn LED on/off

RFID MODULE PINS ARDUINO PINS
* RST/Reset RST 9
* SPI SS SDA(SS) 10
* SPI MOSI MOSI 11
* SPI MISO MISO 12
* SPI SCK SCK 13

Code to turn led on/off:

Create a empty string
String _yourString = "";

put _yourString += buffer[i]; in the function as the video

if( _yourString == "This is Decimal RF card number ")
turn led on;
else turn led off;


put _yourString = ""; at the end of loop function as the video



Arduino programs, called “sketches”, are written in a programming language similar to C and C++. Many sensors and other hardware devices come with prewritten software – look on-line for sample code, libraries (of functions), and tutorials. Learn the Arduino platform and programming language to create robots, interactive art displays, electronic gadgets and much more.

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[szymonsobota]

what should I do when the test result is "Defect or unknown"

[nathancook]

Thankyou for this, my was not originally working then when I downloaded the library, it had a diagram of various boards which required different pins, and I also had to change the speed of the serial port, and it tested fine.

[amaldev]

Hi,
line number 137 (time "11:10") you closed IF statement using semicolon; then how it is turning LED on & off. I am new to programming and Arduino. I could not get that point. Please correct me if i am wrong.

[anujaS]

Sir when i upload rfid_default_keys code and take tag near to reader, it is not displaying anything on the serial monitor. Plz help!

[sulantro]

What to do if the firmware upadate says unkown or defected?

[shauryashrivastava]

I really like your videos. Keep up the good work. Can you also bring a tutorials series on raspberry pi 3 ?

[johnsharpe]

Is it possible to code URLs with this device? How do you do so?

[Unlocking_Quotes]

this code is giving an error in line 139.

[daniellepat]

after you add the zip how to open a project ?

[محمدبنماضي-ثغ]

When I apply the (firmware_check). It says Result: DEFECT or UNKNOWN when I apply the ( rfid_default_keys) .. I approached the card from the reader but it didn't read it

[goodfood]

No any programmer in India who can interface this card with 8051 or pic12f629. All are on Arduino that provides a pre written program simply download load in library and run.

[kevinsolera]

can i use arduino mega in this prooject bro?