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NikZetaJones
Joined: 31 Mar 2002
Posts: 46
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 07 Dec 2003 18:12 2001 vw gol |
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Hello,
I'm making a tachometer which communicates with my VW Gol Computer. The only problem I have is that the Enginse "nosie" is getting into my AVR power supply (made with a LM7805) and possible the AVR I/O pins. How can I filter this noise from the Supply and the I/O Pins.
Thanks very much
Ezequiel
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mystery
Joined: 09 May 2001
Posts: 164
Helped: 2
Location: Turkey
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| 08 Dec 2003 7:51 |
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7805 gives a very bad performance for noise figures , instead i recommend you to use Switched mode regulator like LM2575, you may also use LDO regulators like LM2931
How do you communicate with the vW Golf Computer , is it over CAN bus , do you have any protocol?
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NikZetaJones
Joined: 31 Mar 2002
Posts: 46
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08 Dec 2003 11:44 Re: Noise comming fron VW Gol Engine |
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Thanks
The communication is using RS232 and a special protocol.
Bye
Ezequiel
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