I have one of these Mitutoyo Digimatic indicators and thought it would be fun to get a larger display and to be able to record data.
For those who aren’t familiar, Mitutoyo is an instrumentation company that builds amazing measuring instruments. The image above is a digital dial indicator that measures to a precision of 0.0001″ and can be switched between inch or millimeter units. It uses a vacuum fluorescent display, so it’s readily visible, but kind of a power hog.
Digimatic is a product line dating back to at least the 80’s that provides measurement data digitally from the device. It’s a pretty simple protocol and easily decodable with Arduino.
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