Haase Industries S3P boards: Arduino IDE code and KiCad schematic.

I'll comment the Arduino sketches properly in a few weeks, but, meanwhile, ask me anything about the code or the schematic on my YouTube video, and I'll be sure to respond to it.

Here's the video about this project: https://youtu.be/9oY4NeJDy-g

Thanks to PCBWay for sponsoring this project! Get $5 of New User Free Credit by following this link - https://pcbway.com/g/x5f10h

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