Keyestudio ARDUINO maker learning kit Manual page 101

keyestudio
The circuit may seem completed, but once you give it a good look, you will find it easy!
Sample program
//////////////////////////////////////////////////////////
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()
{
for(int i = 0; i < 256; i++)
{
updateLEDs(i);
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