Circuit Board (Example) - Hexagon TT80 Mode D'emploi

8.4.3 Circuit board (example)

Shift register, type 74HC595 – Number of selected classes = 10.
The bit matching the class changes from 0 to 1.
40
Transmission format
00
90000000
Strobe
bit 1
Clock
DATA
Vcc
22
RJ1234567890000000000000000000000000000000000000
Bit 48
sent
SCK RCK
SER
74HC595
G
Q
A
LSB
R J 1 2 3
ULN 2803
SCK
SCLR
Q'
SER
H
G
Q
Q
H A
MSB
7
4 5 6
RCK SCLR
Q'
74HC595
Q
8 9 10
ULN 2803
Bit 1
sent
RESET
H
H