#include <JEMLCD1.h>
#include <SPI.h>

#define TESTPIN 10

JEMLCD1 lcd(8);
byte cnt =0;

byte val= 0;
unsigned int analog_val;

// this a really rough sample sketch.  We'll write something fancier later. Have fun but use at your own risk. 

void setup()
{
  lcd.init();
  lcd.setBitRate(57600);
  lcd.pinMode(TESTPIN, OUTPUT);
  lcd.pinMode(0, INPUT);
  lcd.digitalWrite(0, 1);  // turn on pullup
}


void loop() 
{
//  delay(50);

  // Segment API:
  // setSegment(digit, segments)
  //
  // digit: which digit to set the segmetns on. (0..5)
  // segments: Bit-field of segemnts to set. 1= on, 0=off; bits are: EDC-FGBA
  //
  //lcd.setSegment(1, 0xEF);    // set all segments on digit #1
  //lcd.setSegments(5, cnt);

  // Digit API:
  // setDigit(digit, value)
  //
  // digit: which digit to set the value of. (0..5)
  // value: value the digit should display:  0..9, ' ', '-', '0'..'9', 
  //    'A', 'B', 'C', 'D', 'E', 'F', 'H', 'L', 'N', 'O', 'P', 'U', 'u'
 // lcd.setDigit(5, '5'); 
 // lcd.setDigit(4, '4'); 
 // lcd.setDigit(2, '2'); 
 // lcd.setDigit(1, '1');
 // lcd.setDigit(0, '0');

  // Icon API:
  // setIcons(set, clear)
  //
  // set: Bit-field fo icons to set
  // clear: Bit-field of icons to clear
  // Use the pre-defined icon names to build the bit-fields: 
  //  START_ICON, STOP_ICON, CLEAR_ICON, LOBAT_ICON, COLON_ICON, DP_ICON, CFM_ICON, PSI_ICON, BAR_ICON, FBA_ICON
  // 
  //lcd.setIcons(START_ICON | COLON_ICON, 0);  // Turn on START and COLON icons, turn off no icons
  //lcd.setIcons(0, START_ICON);  // Turn on no icons, turn off the START icon, leaving the COLON on.

  // Display values API:
  // display(value, field= 0, format= 0);
  //
  // value: the value to display
  // field: where on the display to display the value
  // format: how to display the value.
  //
  //  field | format | value range | 
  //  0     | 0      |  -99.. 1999 | displays on the right set of digits
  //  0     | 1      |  0..1999    | displays on the right set of digits; 5 => 005, 42 => 042
  //  1     | 0      | -9..99      | displays on the left set of digits
  //  1     | 1      | 0.99        | displays on the left set of digits; 5 => 05

  //lcd.display(cnt%100, 1);  
 // cnt++;

  // RGB LED API:
  // setREGB(red, green, blue)
  //
  // red the brightness of the red LED, 0 off 255 full on
  // green the brightness of the green LED, 0 off 255 full on
  // blue the brightness of the blue LED, 0 off 255 full on
  //
  //lcd.setRGB(random(64), random(64), random(64));
  
  // Speaker API:
  // beep(freq, duration)
  // 
  // Higher frequency number are lower pitch. Duration is in incrementis of 8mS.
  //lcd.beep(random(0,255), 5);

  // Buttrons API
  // byte buttons() 
  // 
  // return value bitmask is a '1' when a button press event is detected.  A reference may 
  // also be passed into buttons to read the current state: buttons(&btnState).
  
 // lcd.JEMdigitalWrite (TESTPIN,1);
 // delay(500);
 // lcd.JEMdigitalWrite (TESTPIN,0);  
 // delay(250); 

//  analog_val = lcd.JEManalogRead(6);
 // lcd.display(analog_val);

/* echo data back on the RS-232 bus
if (lcd.available()){ 
  val = lcd.read();
  lcd.write(val);
} // */
  
  val= lcd.buttons();
//  Serial.print(val, DEC);
  switch(val) {
    case 0x01: 
      lcd.setRGB(random(64), random(64), random(64));
      lcd.setIcons(0xffff, 0);
      lcd.setContrast(0x00);
      break;
    case 0x80:
    lcd.display(cnt%100, 1);  
    lcd.beep (3, 25);
    if (cnt++ == 15) cnt = 0;
    lcd.display (cnt,1,1);
    lcd.setContrast(0x3F);
    break;
  }
}