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Build A Digital Tachometer/RPM Counter
Posted January 27, 2011 by Chris
The tachometer is not a new invention, but being able to build a digital tachometer in less than an hour by yourself shows you how far technology has come. This tutorial guides you through the process of building your own PIC based rpm counter!
11 Responses to “Build A Digital Tachometer/RPM Counter”
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May 29th, 2011 at 3:57 pm
hi i am very interested in this draft fan RPM for my tank because I have thermometer but when you turn the air conditioning and the fan is fixed speed cooling me a lot of water and I would like to reduce the returns of fan
April 16th, 2014 at 9:34 pm
Hi dear I want the tachometer to switch ON a relay at a certain speed limits. example: 17,000-17,500 RPM and OFF the relay upon reaching 17,500.