TIL311 educational, slapped together code

til311_test.ino

// EDUCATIONAL CODE. Do What the Fuck You Want to Public License.

// Just a quick code to explain how the TIL311 hexa display works.
// I do not have it anymore, this is just based on the datasheet so no means of testing.
// This is not object-oriented or uC-style for education purpose.

// You will have to connect pins 1 and 14 of TIL311 to Vcc (5V)
// pin 7 to ground.

// Datasheet: https://www.jameco.com/Jameco/Products/ProdDS/32951.pdf for reference.

#define LSTROBE 3 // TIL311 pin 5. If HIGH, the TIL311 will not be affected by inputs. Useful for multiplexing.
#define BLANK 4 // To pin 8. To blank the screen, can be used to modulate intensity
#define LDP 5 // To pin 4. Left decimal point, put LOW to light up
#define RDP 6 // To pin 10. Right decimal point, same

const byte dataPins[] = {7,8,9,10}; // TIL311 binary inputs
// Connect to 3, 2, 13, 12, in this order, see datasheet page 2

int disp=0; // Displayed number

void setup()
{
	for (int i=0; i<4; ++i){
		pinMode(dataPins[i], OUTPUT);
	}

	pinMode(LSTROBE, OUTPUT);
	pinMode(BLANK, OUTPUT);
	pinMode(LDP, OUTPUT);
	pinMode(RDP, OUTPUT);

	digitalWrite(LSTROBE, LOW);
	digitalWrite(BLANK, LOW);

	// Decimal points off
	digitalWrite(LDP, HIGH);
	digitalWrite(RDP, HIGH);
}

void loop()
{
	for (int i=0; i<4; ++i){
	    digitalWrite(dataPins[i], bitRead(disp, i));
	}

	disp++; // Same as disp = disp + 1;
	
	if (16 == disp) // This is a hexadecimal display
	    disp = 0;
  
	delay(1000); // Wait one second
}