Products > Robotics and Automation

any open source digital-measuring tape?


I need to build one with the resolution of 1mm, the tape I need should measure things within 2m.

Let me know  :D


There's also this idea:

Such a mouse has a tiny camera in it.
If you use a regular tape measure and a webcam fixed to it, you can use image recognition software to analyse the position of the measure tape.
If you also look at the numbers on the tape measure, you can even make it an absolute encoder.

Camera modules can be quite small and cheap these days. The bigger problem would be a brainbox with enough brain power to run the image recognition algorithms, and small battery drain power for a decent lifetime (If it's battery powered).


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