#include <iostream>
 
void displayDigit( uint8_t digit, uint8_t pos )
{
	printf( "\tdisplayDigit( %d, %d )\n\t{\n", digit, pos );
 
	uint8_t positionPin = pos + 9;
 
	//digitalWrite( positionPin, HIGH );
	printf( "\t\tdigitalWrite( %d, HIGH )\n\n", positionPin );
 
	// States of each segment for each digit
	uint8_t segmentsData[] =
	{
		//8765432  // segments output pins
		0b0111111, // segments for digit '0'
		0b0000110, // segments for digit '1'
		0b1011011, // segments for digit '2'
		0b1001111, // segments for digit '3'
		0b1100110, // segments for digit '4'
		0b1101101, // segments for digit '5'
		0b1111101, // segments for digit '6'
		0b0000111, // segments for digit '7'
		0b1111111, // segments for digit '8'
		0b1100111, // segments for digit '9'
	};
 
	uint8_t digitData = segmentsData[ digit ]; // select the segments data for this digit
 
	for ( uint8_t i = 0; i < 7; i++ )
	{
		uint8_t segmentPin = i + 2; // segments pins from 2 to 8
		uint8_t segmentState = (digitData >> i) & 1; // equivalent to bitRead( digitData, i )
 
		//digitalWrite( segmentPin, segmentState ? LOW : HIGH );
		printf( "\t\tdigitalWrite( %d, %s )\n", segmentPin, segmentState ? "LOW" : "HIGH" );
	}
 
	//digitalWrite( positionPin, LOW );
	printf( "\n\t\tdigitalWrite( %d, LOW )\n", positionPin );
 
	printf( "\t}\n" );
}
 
void displayNumber( uint16_t number )
{
	if ( number >= 0 && number <= 9999 )
	{
		printf( "displayNumber( %d )\n{\n", number );
 
		uint8_t pos = 0;
		uint16_t n = number;
 
		while ( n != 0 )
		{
			displayDigit( n % 10, pos++ );
			n /= 10;
		}
 
		printf( "}\n" );
	}
}
 
 
int main()
{
	displayNumber( 1234 );
	displayNumber( 1337 );
 
	return 0;
}

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