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- Newsgroups: sci.electronics
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!uwm.edu!csd4.csd.uwm.edu!pegasus
- From: pegasus@csd4.csd.uwm.edu (David R Hucke)
- Subject: LED buffer (how?) (was 8051 help needed)
- Message-ID: <1992Jul30.181542.19932@uwm.edu>
- Originator: pegasus@csd4.csd.uwm.edu
- Sender: news@uwm.edu (USENET News System)
- Organization: Computing Services Division, University of Wisconsin - Milwaukee
- Date: Thu, 30 Jul 1992 18:15:42 GMT
- Lines: 19
-
- Thank you all for helping me out with my 8051 question..
-
- Several said that I would pulling too much current through the port
- pin and I should use a transistor as a buffer...
-
- WOuld somebody tell me how to do that? Do I use an NPN or PNP?
- What does the schematic look like?
-
- Could somebody explain to me in clear english the theory behind the
- operation of the transistor being used as a buffer?
-
- Thank you very much again...
-
-
-
- --
- pegasus@csd4.csd.uwm.edu David R. Hucke
- UW-Milwaukee Film Major
- --
-