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???
01/27/06 05:16
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 		 #108461 - Simple the better
Responding to: ???'s previous message
Hi,

Try to use opto instead of hall effect.

Use a disc with holes with an IR or LED beam thru and on a photosensor coupled with a Schmitt Trigger to the interrupt input of the micro.

that works better.

List of 28 messages in thread
TopicAuthorDate
Tachometer code with problems            01/01/70 00:00      
   have you tried to separate the elements?            01/01/70 00:00      
   LCD problems            01/01/70 00:00      
      from the left and from the right            01/01/70 00:00      
         Good point            01/01/70 00:00      
            I like the ideas so far...            01/01/70 00:00      
               Flashing cursor            01/01/70 00:00      
   underscore?            01/01/70 00:00      
   Set TR0 bit in TCON (TCON..4)            01/01/70 00:00      
      right there in "the bible" ch3 pg7): "TC            01/01/70 00:00      
         It works - well the software anyway...            01/01/70 00:00      
            ir does            01/01/70 00:00      
               I'm getting there...slowly            01/01/70 00:00      
                  the only problem with the sensor is that            01/01/70 00:00      
                     Personally            01/01/70 00:00      
                     How embarrassing...            01/01/70 00:00      
                     Noise pickup            01/01/70 00:00      
                        It's my own engine            01/01/70 00:00      
                           Averaging            01/01/70 00:00      
                              car rpm - mahmood            01/01/70 00:00      
                                 some links            01/01/70 00:00      
                                    much thanks            01/01/70 00:00      
   I've had some success...            01/01/70 00:00      
      not the points            01/01/70 00:00      
         Maybe not the points, but...            01/01/70 00:00      
            Screen the hall sensor.            01/01/70 00:00      
               Simple the better            01/01/70 00:00      
                  Hall vs Opto            01/01/70 00:00      

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