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???
04/17/05 10:22
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#91750 - HMI for adjusting timer
Hello everyone , I was a little busy these days so couldn't post replies.

anyway after a long time I was trying to do a small project , which requires me to provide a human inteface like a pot to adjust the timing of a relay switching.
One of my ideas is to use a cd4060 which Charles had suggested using for my project.

The way it could work is use a RC oscillator circuit, in which the R is a POT so as it varies the timing will vary .

I feel I will have a calibration problem , Since I am unable to find how to calculate the RC for the oscillator?

Any suggestion or any pitfalls in this method.

Please let me know.
Thank you guys.

Deepak

ps:
Does any one have any openings for vxworks / some one needs help ,I will try to help.

List of 18 messages in thread
TopicAuthorDate
HMI for adjusting timer            01/01/70 00:00      
   How much delay ?            01/01/70 00:00      
   what's do you need? Steve            01/01/70 00:00      
      4 channel 8 bit AD ?            01/01/70 00:00      
         hmm. complexity & cost issue            01/01/70 00:00      
            Well now            01/01/70 00:00      
            LPC Avilability.            01/01/70 00:00      
   Microcontroller...            01/01/70 00:00      
      link not available            01/01/70 00:00      
         spelling            01/01/70 00:00      
            Can you fix it?            01/01/70 00:00      
               Nope...            01/01/70 00:00      
                  Could Craig do it?            01/01/70 00:00      
                     What?            01/01/70 00:00      
                        Problem,            01/01/70 00:00      
   Rotrary encoder.            01/01/70 00:00      
      Qwheel:            01/01/70 00:00      
   Two methods I find interesting            01/01/70 00:00      

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