It’s the latest in instrumentation for the well-appointed shop — an acoustically coupled fast Fourier transform tachometer. Sounds expensive, but it’s really just using a smartphone spectrum ...

Q: I've wondered for a long time why most automobile manufactures include a tachometer in their instrument display. Is it a symmetry issue; they'd like their display to have a balanced appearance?

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute (RPM). You don’t need much in ...

Kiger RXZ (top end model) has the funniest concept of tachometer of any car ... IN THE WORLD. * The Normal mode (what comes on when the car is switched on) DOESN'T have a tachometer (they think ...