74hc595 guidance

Projects General Guidance
1

can anyone understand how to retrieve data from this machine , i am use 74hc595 with arduino mega

2

74HC595 is an output device. You send data to it, not read it.

3

74HC595

4

groundFungus:
74HC595 is an output device. You send data to it, not read it.

groundFungus:
74HC595 is an output device. You send data to it, not read it.

what about 74hc165 ? is that input device ? or also output device?

5

Google is your friend.

74HC165

6

What is "this machine" ?