use 74HC595 to control 16 led? #6

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1. jthomaschewski commented on Dec 4, 2015

   

   jthomaschewski

   on Dec 4, 2015

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   Use provided shiftRegisters(num) in initialization:

   shiftRegisters(2)
   digitalWrite(9, HIGH)

   this does work for me
2. chapunazar commented on Aug 1, 2016

   

   chapunazar

   on Aug 1, 2016

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   So far I successfully linked 4 registers... planning to link 8 :P
3. superino92 commented on Aug 6, 2016

   

   superino92

   on Aug 6, 2016

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   how do you connect the second shift register?? please somebody help me i need 20 output
4. chapunazar commented on Aug 8, 2016

   

   chapunazar

   on Aug 8, 2016

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   Hi, here you can see how you can connect 2 registers. Though its for arduino it works perfectly for Rpi pin voltage levels. Adding more registers as simple as chaining them
5. superino92 commented on Aug 8, 2016

   

   superino92

   on Aug 8, 2016

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   HELP!!! look what my program in python say it!
   Traceback (most recent call last):
   File "tres.py", line 9, in
   shiftRegisters(2)
   NameError: name 'shiftRegisters' is not defined
6. chapunazar commented on Aug 8, 2016

   

   chapunazar

   on Aug 8, 2016

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   make sure you are importing correctly shiftpi and also try with
   shiftpi.shiftRegisters(2)