Raspberry Pi Pinout

Legend

  • GPIO (General Purpose IO)
  • SPI (Serial Peripheral Interface)
  • I2C (Inter-integrated Circuit)
  • UART (Universal Asyncronous Receiver/Transmitter)
  • Ground
  • 5v (Power)
  • 3v (Power)

BCM 20 (SPI Master-Out)

Alt0Alt1Alt2Alt3Alt4Alt5
PCM DINSMI SD12DPI D16I2CSL MISOSPI1 MOSIGPCLK0
  • Physical pin 38
  • BCM pin 20
  • Wiring Pi pin 28