How to Use an RFID RC522 on Raspberry Pi

Setup SPI:

Run raspi-config

sudo raspi-config

Go through: 8 Advanced Options -> A6 SPI->Yes
Then press Enter three times to enable SPI as default settings Select finish and reboot

Install python-dev and git:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install python-dev git

Wiring:

Name	Pin#	Pin Name
VCC	1	3V3
RST	22	GPIO25
GND	Any	Any Ground
MISO	21	GPIO9
MOSI	19	GPIO10
SCK	23	GPIO11
NSS	24	GPIO8
IRQ	None	None

Install SPI-Py

cd ~
git clone https://github.com/lthiery/SPI-Py.git
cd SPI-Py/
sudo python setup.py install

Get MFRC522-python library

cd ~
git clone https://github.com/mxgxw/MFRC522-python.git
cd MFRC522-python/

Now Run:

# To read card
sudo python Read.py
# To write card
sudo python Read.py