In this video I will show you how to connect your digital caliper to an Arduino and be able to receive the numbers on the computer. The Arduino code is not presented in the video, because you only have to copy and paste it. With this simple circuit, you can transform these cheap digital calipers into a powerful displacement sensor for your milling machine or anything where you want to detect small displacements.

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https://curiousscientist.tech/tools

Source code:
https://curiousscientist.tech/blog/ca...

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If you want to understand the signals of the caliper better, I recommend you this website where I took the code from:
http://wei48221.blogspot.com/2016/01/...