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Raghunathan
09/08/15 08:23
Read: 1177 times
Chennai
India


 
#190564 - One 89V51RD2 and 12 nos 4 digit LED modules
For a project I have a requirement to interface 12 nos of 4 digit seven segment display modules to one P89V51RD2. Even though the count of display modules are high the MCU most of time will be waiting for a proximity signal and once received update some data into the displays and then wait.

I am basically looking for something like the SAA1064 where you can have four modules on to one I2C bus. Is there anyway to do what I want without resorting to multiprocessor communication ? ( One central master MCU and 12 slave display modules with its own MCU )

List of 7 messages in thread
TopicAuthorDate
One 89V51RD2 and 12 nos 4 digit LED modules      Raghunathan      09/08/15 08:23      
   shift registers      Jan Waclawek      09/08/15 12:44      
   LED drivers      Jim Granville      09/08/15 15:51      
      Why not many MAX7219 drivers?      Raghunathan      09/09/15 04:44      
         Sure, if you already have 12 x MAX7219       Jim Granville      09/10/15 20:24      
            Thanks to all those who responded      Raghunathan      09/12/15 20:47      
   might have been ridicolous, but      Erik Malund      09/09/15 06:44      

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