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???
02/24/08 02:50
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#151361 - thank you
Responding to: ???'s previous message
Thank you for your understanding! I do put my foot in my mouth every once in a while and I never get used to the taste :-)

Re. your explanation on resistor sizing. What you're saying makes perfect sense. When you're new to the game like I am, figuring out the acceptable range isn't trivial. Pullups, pulldowns, internal pullup resistors, high impedance inputs, it's all Greek to me!

Is there any rule of thumb for the 8051/8052 as far as resistor sizing is concerned that is a safe place to start? I personally have spent many an hour on the net searching for microcontroller interfacing diagrams and information but because there are so many uC choices out there, finding info that I could trust was difficult.

This website is a great reference. If it were practical, I would love to see an 8052 "Interfacing Examples" section with how-to's on connecting common I/O to the 8052 such as switches, LED's, relays, etc. for the 8051/8052 noobs like me who just don't know the proper way to do things. Just a thought...

Thank you all again,
Brian

List of 12 messages in thread
TopicAuthorDate
check my interfacing scheme please?            01/01/70 00:00      
   Schematic is not clear to me atleast            01/01/70 00:00      
   too big input resistors            01/01/70 00:00      
      of course, you will            01/01/70 00:00      
   Judging from the picture on the home page ...            01/01/70 00:00      
      the FAQ has it all            01/01/70 00:00      
   my apologies            01/01/70 00:00      
      No need to apologize, Brian...            01/01/70 00:00      
         thank you            01/01/70 00:00      
            nit really ... but            01/01/70 00:00      
               thank you            01/01/70 00:00      
       dont know other way            01/01/70 00:00      

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