ady8077
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| posted on 11/8/04 at 06:01 PM |
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Cheap shift light
Are there any cheap shift lights?
I had thought of using the Velleman kit from Maplins
http://www.maplin.co.uk/products/module.asp?CartID=040809171752709&moduleno=3169&Products=1
But i'm not sure if you could change the display to individual L E D's ?
Any suggestions ?
Adrian
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David Jenkins
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| posted on 14/8/04 at 01:59 PM |
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Adrian,
How are you on making up electronic circuits? I'm talking about 1 or 2 integrated circuits, a few resistors and a few LEDs. Easy to make using
stripboard, if you've ever seen that stuff.
If you can cope (and if you're talking about building Velleman kits, I presume that you're OK), I can give you a simple circuit that will
work very well, and only cost you a few quid from Maplins.
rgds,
David
[Edited on 14/8/04 by David Jenkins]
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ady8077
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| posted on 14/8/04 at 02:03 PM |
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Hi David
I'm ok at simple electronics, can you post it here?
Adrian
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David Jenkins
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| posted on 14/8/04 at 02:47 PM |
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Will do - I'll be a little while finding it (I've just come back off holiday!).
Should be able to post it tonight or tomorrow.
David
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David Jenkins
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| posted on 18/8/04 at 08:31 AM |
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Humble apologies...
I went through all my wiring diagrams and found out that I'd done it a totally different way than I'd remembered... so I really
don't have much to offer. Sorry.
All I have is this link, which is a pdf of a scooter tacho circuit. What I was thinking of was
using a circuit like this with just one LM3914, and fiddling until the required LEDs light up at the correct rev numbers. You may still be able to
sort something out from this (it's quite detailed). These circuits do work very well, BTW.
What I'd done in the past is to write a program for a microcontroller (PIC) - this used hardly any components, but did require a fair bit of
ancilliary kit to set it up (chip programmer, laptop PC, compiler, etc.) and a lot of experimentation, hacking, re-compiling and so on - not something
I could easily explain here!
Sorry for the bad news...
David
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ady8077
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| posted on 18/8/04 at 05:02 PM |
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Hi David
I've been given a half finished kit by jaycar electronics, uses an LM2917 freq to volts chip
Thanks for looking
Adrian
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