Keyestudio KS0077, Manual, Page: 63 / 142

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Connection for 2560 R3:
The circuit may seem complicated, but once you wire it in order, you will find it more easier!
Sample Code
//////////////////////////////////////////////////////////
int data = 2;// set pin 14 of 74HC595as data input pin SI
int clock = 5;// set pin 11 of 74hc595 as clock pin SCK
int latch = 4;// set pin 12 of 74hc595 as output latch RCK
int ledState = 0;
const int ON = HIGH;
const int OFF = LOW;
void setup()
{
pinMode(data, OUTPUT);
pinMode(clock, OUTPUT);
pinMode(latch, OUTPUT);
}
void loop()