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interfaces:rc522 [2015/02/10 17:35] darron [Pinout] |
interfaces:rc522 [2015/03/22 21:55] (current) |
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==== RFID RC522 ==== | ==== RFID RC522 ==== | ||
+ | <wrap right> | ||
+ | {{: | ||
+ | </ | ||
- | This is a very inexpensive RFID module with an integrated circuit | + | This is a very inexpensive RFID module with an MFRC522 |
- | and PCB antenna. | + | and a PCB antenna. |
+ | |||
+ | Although the MFRC522 has I2C, serial and SPI interfaces, only SPI is | ||
+ | available on this module. | ||
=== Pinout === | === Pinout === | ||
< | < | ||
- | +-----------------------------------+ | + | +-------------------------------------+ |
- | | | + | | ANTENNA |
- | | | + | | | |
- | +-SDA SCK MOSI MISO IRQ GND RST 3V3-+ | + | | XTAL |
+ | | | ||
+ | + *SDA SCK MOSI MISO IRQ GND RST 3V3 + | ||
+ | |||
+ | *SDA is the SPI NSS (slave select) input. | ||
</ | </ | ||
+ | |||
+ | === RPi === | ||
+ | |||
+ | ^Pin | ||
+ | |GPIO8 |CE0 | SDA | | ||
+ | |GPIO11|SCLK | SCK | | ||
+ | |GPIO10|MOSI | MOSI | | ||
+ | |GPIO9 |MISO | MISO | | ||
+ | | | | IRQ | | ||
+ | |GND | ||
+ | |GPIO25| | ||
+ | |3V3 | ||
+ | |||
+ | === Resources === | ||
+ | [[http:// |