Lab 5 - SD -> LCD

/*
  Graphics

 Runs a text-only demo on the Nokia 5110 LCD.

 The circuit:
 * Nokia 5110 Connected as follows:
LED   --> 50 Ohm   -->   3.3V
SCLK        -->          Pin 1 (SCLK)
DN(MOSI)    -->          Pin 2 (MOSI)
D/C         -->          Pin 4
RST         -->          Pin 8
SCE         -->          Pin 9
GND         -->          GND
Vcc         -->          Pin 10

 By Andrew Lindsay (Adapted by Megan Wachs and edited by Matthew Seal and Akil Srinivasan)
 */
 /*IF we are not using the Graphics or Bitmap capabilities
 of the LCD, save code space with these #defines*/

#include <SD.h>
const int chipSelect = 12;

#include <nokia_5110_lcd.h>

//LCD PINS
#define LCD_PWR   10
#define LCD_SCE   9
#define LCD_RESET 8
#define LCD_DC    4

Nokia_5110_lcd lcd(LCD_PWR, LCD_DC, LCD_SCE, LCD_RESET);

void initSD(){
  Serial.begin(9600);
  Serial.print("Initializing SD card...");
  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");
}

void setup()
{
  initSD();
  File dataFile = SD.open("datalog.txt");
  lcd.init(80); //parameter is contrast value, between 0 [low] and 127 [high]
  lcd.clear();

  if (dataFile) {
    while (dataFile.available()) {
      lcd.writeChar(dataFile.read(), MODE_NORMAL);
      delay(250);
    }
    dataFile.close();
  }
  // if the file isn't open, pop up an error:
  else {
    Serial.println("error opening datalog.txt");
  }
}

/* loop */
void loop() {

}