Keyestudio ARDUINO maker learning kit Manual page 112

Sample Program
//////////////////////////////////////////////////////////
// display 1234
// select pin for cathode
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int dp = 8;
// select pin for anode
int d4 = 9;
int d3 = 10;
int d2 = 11;
int d1 = 12;
// set variable
long n = 1230;
int x = 100;
int del = 55; // fine adjustment for clock
void setup()
{
pinMode(d1, OUTPUT);
pinMode(d2, OUTPUT);
pinMode(d3, OUTPUT);
pinMode(d4, OUTPUT);
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
pinMode(dp, OUTPUT);
}
/////////////////////////////////////////////////////////////
void loop()
{
Display(1, 1);
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