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16 port Expander for Sprinkler Controller 2.3
 

 
  • 16 port expander for our OS 2.3 sprinkler controller. It uses 2 74hc595 shift registers for output control. As it uses standard shift registers the board can be purposed for other uses.
    Output drive transistor or triac will dictate which valves it controls. Common power rail is not connected to ground plane and can be connected to current sense resistor on control board for sensing power usage

    NOT compatible with OS 3.2 as it uses I2C controller chip


     

    Features

       AC or DC option
       Standard 10 pin expansion port
       74ls595 shift registers
       Can be chain to other modules for extra ports

        
     

      Documents

         Schematic
        
      PCB layout files   (easyEDA)
        
      Gerber Files 
         74hc595
         BT1308
         Z0103MN0
         MAC97A6
         2N7000

         2N3904


        
        




 




 

 
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