Noozer wrote:
Anyone have a simple digital tachometer schematic handy?
I want to put a 4 digit LED tach into my van. Resolution of 50rpm is fine.
Fed by the TACH output of a six cylinder GMC on distributor coil.
If it isn't much more difficult, I'd like to be able to drive a bar graph of
12 to 16 LEDs as well.
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try epanorama. This would also be a good project to learn c programming
on a microcontroller. Use a text lcd as the bar graph. Or a graphics
lcd. Look at the Olimex MT128 at olimex.com