main.c

//
// Nokia 5110 LCD display test program
//
// Written by Larry Bank 4/6/2016
//
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <nokia5110.h>

int main(int argc, char* argv[])
{
int rc;
int i, x, y;

	// SPI Channel, D/C, RESET, LED
	rc = nokiaInit(0, 37, 35, 13);
	if (rc != 0)
	{
		printf("Problem initializing nokia5110 library\n");
		return 0;
	}
	nokiaWriteString(2, 1, "Another", FONT_NORMAL);
	nokiaWriteString(2, 2, "BitBank", FONT_NORMAL);
	nokiaWriteString(1, 3, "FOSS tool", FONT_NORMAL);
	nokiaWriteString(2, 4, "Narrow Font", FONT_SMALL);
	// draw a box around the whole display
	for (x=0; x<84; x++)
	{
		nokiaSetPixel(x, 0, 1);
		nokiaSetPixel(x, 47, 1);
	}
	for (y=0; y<48; y++)
	{
		nokiaSetPixel(0, y, 1);
		nokiaSetPixel(83, y, 1);
	}
	usleep(3000000);
	for (i=0; i<10000; i++)
	{
		x = rand() & 0x7f;
		y = rand() & 0x3f;
		// cover entire display with black
		while (nokiaGetPixel(x,y))
		{
			x++;
			if (x >= 84)
			{
				y++;
				x = 0;
				if (y >= 48)
					break;
			}
		}
		nokiaSetPixel(x, y, 1);	
	}
	usleep(4000000);
	nokiaShutdown();

   return 0;
} /* main() */