Quick Arduino Hack Lets Tach-less Car Display Shift Points - Hackaday

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Quick Arduino Hack Lets Tach-less Car Display Shift Points Hackaday If your daily driver was born without a tach, fear not – a simple Arduino tachometer is well within your reach. The tach-less vehicle in question is [deepsyx]'s Opel Astra, which from the video below seems to have the pep and manual transmission that ...