Manuel Nazar

1) Thats the whole goal and precisely how a shift register, as 74hc595, works. Look it this way, you load the n-pins in series but when latched the values are...

So far I successfully linked 4 registers... planning to link 8 :P

Hi, [here](https://www.arduino.cc/en/Tutorial/ShiftOut) 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...

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