Monday, August 29, 2016

My homemade Raspberry Pi expansions


I am proud to present my own Raspberry PI extensions.
This is second hardware project in my life.
  1. 8 channel DAC expander with eight MCP4725 devices.

  2. 8 channel ADC HAT based on single MCP3008 chip.
  3. 16 channel PWM expander based on PCA9685 chip.

  4. 8 channel GPIO expander based on PCF8574 chip.

  5. 16 channel GPIO expander based on MCP23017 chip.

  6. I2C1 port replicator with OLED display.

  7. Raspberry Pi 3 with mounted all expansion boards presented above..


  8. ..and one software to rule them all..