Differences
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interfaces:rc522 [2015/02/11 14:37] darron [RFID RC522] |
interfaces:rc522 [2015/03/22 21:55] |
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- | ==== RFID RC522 ==== | ||
- | <wrap right> | ||
- | {{: | ||
- | </ | ||
- | This is a very inexpensive RFID module with an MFRC522 integrated circuit | ||
- | and a PCB antenna. | ||
- | |||
- | Although the MFRC522 has I2C, serial and SPI interfaces, only SPI is | ||
- | available on this module. | ||
- | |||
- | === Pinout === | ||
- | |||
- | < | ||
- | +-------------------------------------+ | ||
- | | ANTENNA | ||
- | | | | ||
- | | 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:// |