LED illumination with Raspberry Pi 3 – Using GPIO pins

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LED illumination with Raspberry Pi 3 – Using GPIO pins

The GPIO connector on the Raspberry Pi has pins with different functions:

  • GPIO pins, which we can use for general input / output
  • I2C communication port (GPIO02 and GPIO03 pins)
  • SPI communication port (GPIO10, GIPO09 and GPIO11 pins)
  • UART serial communication port (GPIO14 and GPIO15 pins)

To see the positions of these pins, there is a diagram as follows:

To use all communication possibilities of our Raspberry Pi, the functions I2C, SPI and Device Tree must be activated with the program raspi-config. You can see our lesson number 1 to open these functions.