Stylin305 Posted July 6, 2009 Report Share Posted July 6, 2009 Im looking at the circuit for the digital radar speedometer and while analyzing the circuit its doesnt specify exactly what kind of LED diode is needed for it to function. Can anyone help me with this???? Quote Link to comment Share on other sites More sharing options...
blueroomelectronics Posted July 6, 2009 Report Share Posted July 6, 2009 What circuit are you referring to?If you're stuck on what type of LED to use you might want to try something simpler. Quote Link to comment Share on other sites More sharing options...
Stylin305 Posted July 6, 2009 Author Report Share Posted July 6, 2009 Its the circuit called Digital Radar Speedometer on this site http://www.electronics-lab.com/projects/test/021/index.html Quote Link to comment Share on other sites More sharing options...
blueroomelectronics Posted July 6, 2009 Report Share Posted July 6, 2009 Oh that circuit. Although I haven't built it I have little faith in the design. You can buy a Hot-Wheels speedgun from Wal-Mart for a few dollars. Quote Link to comment Share on other sites More sharing options...
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