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DIY Arduino Boards IO I2C

Posted on by Robin Ding Leave a comment Education, Hardware, Scientific/Engineering

DIY Arduino Boards PCF8674 MCP23017 74HC595 CD4021
I2C
Parallel IO
Piezo buzzers

Schematics
PCB Layout
Sample Code

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Website https://diyarduinoboards.sourceforge.io
Tags
Features
  • Ideal for testing projects and IO devices
  • Stripboard layout, easy to build and test
  • Full code and schematics provided
  • Helpful in learning how to connect and program shift registers and IO devices
  • The schematic and code you can use in your own projects to add desired functionality
  • Useful for educators and classroom instruction