Appendix B. Raspberry Pi GPIO Pinout

Figure B-1. The Raspberry Pi pinout

Notes

  • I2C on pins 2 and 3
  • SPI on pins 9, 10, and 11
  • TTL Serial on pins 14 and 15
  • Pins ID_SD and ID_SC are reserved for use with serial EEPROM for identifying add-on boards (HATs)

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