MFRC-522 RC522 RFID radio frequency Green mini version with S50 ID Card and Tag Token

Description

Interface pin definition and module parameters

Module size 3.5mm * 2.5mm, super small size, easy to embed into your system

The working frequency is 13.56MHz
The working voltage is 2.5 ~ 3.6V
Working current using program routine, card searching current 20mA (3.3V power supply)
Support type mifire1 S50 S70 ultralight Pro
Working temperature – 25 ~ + 85 ℃

grade           IO type                Function description
3.3V         Power Supply        Power supply positive
GND        Power Supply             Power ground
RST                input                           reset
MISO            output             SPI port slave output
MOSI             input                SPI port slave input
SCK               input                  SPI interface clock
NSS               input                   SPI port selection