Category:RPI Hardware

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Enable I2C

  • use raspi-config to enable I2C
  • Install python relevant tools
sudo apt-get install python-dev 
sudo apt-get install python-smbus i2c-tools

Test and scan I2C device by commands: sudo i2cdetect -y 1

Enable UART

  • for new system and new board, by adding enable_uart=1 to config.txt, but limited system speed 250mhz.

Use Serial UART USB-TTL Cable

  • Connect pins VCC - Pin1, GND - Pin3, RXD (white) - Pin4, TXD(green) - Pin5
  • Open COM port on baudrate 115200, login with user=pi and password=raspberry

ID_SD and ID_SC pins

  • You can't use GPIO 0/1 as an I2C bus on the Pi3. On the Pi3 I2C bus 0 is used internally.
  • You can use GPIO 0/1 as ordinary inputs and outputs on the Pi3.
  • There are no restrictions on earlier Pi models, you can use GPIO 0/1 as ordinary GPIO or as an I2C bus.

Pages in category "RPI Hardware"

The following 8 pages are in this category, out of 8 total.