Digital Calipers to Arduino Adapter

Digital Calipers are great. What's even better? Digital calipers that you can do whatever you'd like, electronically, on the output line.

Combined with some pins, a level shifter to go from 1.2v to 5v for the logic, and an Arduino (or other Atmel processor) of some sort you can interface it with just about anything.

I'll be working on a software toolkit for just that. In part because I'd like to haul out two digits of precision from my inexpensive carbon fiber set of calipers. And also because I'd like to add a raft of features to interface it with computers and other systems.

All that with a base cost of 3$ or so for the caliper.

And there's a build video on YouTube and a design page on PCBurn to compliment the design with a build.

Build Post @PCBurn: https://pcburn.com/digital-caliper-via-usb-(vernier)-for-dro---just-3$

YouTube Design Video: https://youtu.be/VBqEMSvjA3o

Github Repository: https://github.com/Inhibit/3D\_Designs/tree/master/Digital\_Caliper\_USB\_Connector

Print instructions

I used a 0.25mm tip to print this out. You can try it with any nozzle; that's probably the best common size to get the correct print on the narrow fingers.