How to connect NV7 bill acceptor to Arduino?

Question

Arduino

I connect the NV7 bill acceptor to the Arduino UNO according to this article silatoka.net/arduino-nv-9 I
connected it, but incorrect values ​​\u200b\u200bare sent to the terminal, even when the bill was not accepted, some data appears there.
on the receiver switches 1,2,3 are off. 4 is on, I tried turning 4 off but the data is also not correct,
as I understand it, it is necessary to read the pulses correctly, but I don’t understand how to do this

Answer 1

1,2,3 off. 4 is on, tried to turn 4 off but the data is also not correct

I'm embarrassed to ask - have you tried reading the instructions for the bill acceptor? 1-2-3 off 4 on is pulse interface, 1-2-3-4 off is parallel. The sketch you gave as an example uses pulse.
instruction .