Data Sheet

19
control the brightness of the LEDs. This pin is active low, so in this lesson we tie it to GND.
Connection Schematic
Wiring Diagram
Result
LEDs flash in turn.
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
GND
VCC
DS
OE
ST_CP
SH_CP
MR
Q7'
220R
220R
220R
220R
220R
220R
220R
220R
UNO R3/
Mega 2560
74HC595
AREF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
GND
SDA
SCL/RESET
3V3
5V
A0
A1
A2
A3
A4
A5
GND1
GND2
VIN
Analog Input
Digi tal Input/Output
ARDUINO-NOHOLE