DIY Arduino Boards PCF8674 MCP23017 74HC595 CD4021
I2C
Parallel IO
Piezo buzzers
See the Files section for a wide range of sensors and sample code
Schematics
PCB Layout
Sample Code
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
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