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HowToDo Question : How to turn the LEDs at a certain frequency ?

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PostPosted: 05 Dec 2010 3:42 
Hello,

I try to make a motorcycle tachometer LED: LED light above a given regime.

The information comes from my high voltage coil form of electrical pulses and I turn on the LEDs one to one after a certain frequency.

Is it possible to make this arrangement quite simply (style filter frequency) and with which components?

thank you in advance
Guest





PostPosted: 05 Dec 2010 4:21 
hello
Simply turn the voltage pulses, there are specific channels for that.
See also home Velleman kit
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PostPosted: 05 Dec 2010 6:32 
Good evening: old bike I presume!. RIONEL right: transform voltage pulses;: from head: a LM3911.ENSUITE: a bar graph below: LM3914.realise it in CMS: 1 square inch or so.. acheter.mais then where is the fun!. I speaks knowingly: I realized this systheme on an R8. At the time the engine access allows manipulation !
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PostPosted: 05 Dec 2010 8:49 
Ok thank you I will look into the thing. You would not have plans for what you had installed on your R8?
Yes it's old bike: 1000 FZR
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PostPosted: 05 Dec 2010 10:08 
"I turn LEDs one to one after a certain frequency. "

Way F1 -)

Cool!
Guest





PostPosted: 05 Dec 2010 12:09 
Yes and it takes less than a big round tachometer round
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PostPosted: 05 Dec 2010 12:22 
goodnight: assembly has the era struts realized with discrete components.. therefore large surface!. but using 2 here preconnises: no pb! just read the docs!. to see only the required speed: set ref on the LM3914... But this is the doc says ds +
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