RC522 RFID modules are a simple add-on you can connect to a Raspberry Pi to…
This is an archive of all articles that relate to the Raspberry Pi SPI (Serial Peripheral Interface) bus. This interface is great for connecting sensors, screens, displays, addons and various control boards.
The interface can be enabled by following the Enable Raspberry Pi SPI Interface tutorial.
The interface is available on the Pi’s GPIO header :
MOSI P1-19 MISO P1-21 SCLK P1-23 CE0 P1-24 CE1 P1-26 GND P1-25
These labels will usually match the labels on the devices PCB and should be clear from any tutorial you are following.