This is cool, but it means that the design, construction, test and calibration procedures and results for your self-built equipment will all have to be part of your experiment documentation for reproducibiliity.

I'm all in favour of DIY, but doing it right is vital in science. The book Arduino for Projects in Scientific Measurement[1] is a useful starting point.[2] Of course the principles and methods described apply more widely than just to the Arduino.

1. https://www.amazon.com/Arduino-Projects-Scientific-Measureme...

2. But it's just a starting point. There is a long journey ahead.