/* Wave64 - Mama's BIG-IO-input 64 bit capacitive hand-waving sensor

Requires the BigIOinput, Trixel and LiquidCrystal libraries,
a 64-bit parallel to serial input card
and a 12x2 or better LCD display
with 5 or more characters of font RAM.

http://csail.mit.edu/~devon/Arduino/BigIOinput
http://csail.mit.edu/~devon/Arduino/Trixel

*/

#include <BigIOinput.h>
// LiquidCrystal.h must precede Trixel.h
#include <LiquidCrystal.h>
#include <Trixel.h>

/* initialize LiquidCrystal library with the interface pin numbers

Arduino <===> MotherboardShield <===> Mama's LCD Card
			        <===> Mama's BIG-IO-input Card
        <===> USB Serial <===> Programmer
Arduino
Pin#	System	Signal
----	------	------
 0	Serial	RX
 1	Serial	TX
 2
 3
 4	LCD	D4
 5	LCD	D5
 6	LCD	D6
 7	LCD	D7
 8	BI	Shift
 9	BI	Enable
10	BI	Clock
11	LCD	RS
12	LCD	ENABLE
13

Serial uses pins 0,1
BigIOinput uses pins 8, 9, 10 ???
LCD uses pins 4,5,6,7,11,12
*/
#if 0
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
#else
#define RS	11	// LCD 4
#define RW	RW_GROUNDED
#define Enable	12	// LCD 6
#define D4	4	// LCD 11
#define D5	5	// LCD 12
#define D6	6	// LCD 13
#define D7	7	// LCD 14
LiquidCrystal lcd(RS, Enable, D4, D5, D6, D7);
#endif

// initialize Trixel library with the LCD
Trixel trix(&lcd);
// BIG-IO-input 64 uses pins 8, 9, 11, 12
#define BI_Enable	9
#define BI_Shift	8
#define BI_Clock	12
#define BI_P1_Out	
BigIOinput input(64, 8, 9, 10);

void setup()
{
  lcd.begin(12, 2);		// first set up LCD columns and rows
  trix.begin(12, 2);		// then set up trixel buffer and LCD font RAM

  lcd.home();			// unconfuse LCD after trixel init ???
  lcd.print("wave hands");	// show instructions on LCD ...
  lcd.setCursor(0, 1);
  lcd.print(" over inputs");

  delay(1000);			// for a second
}

void loop ()
{
  // continuously monitor all 64 input bits on LCD
  for (int position = 0; position < 64; position++) {
    int x = position / 6;
    int y = position % 6;
    boolean bit = input.read(position);
    trixel_color color = (trixel_color)!bit;
    trix.setDot (x, y, color);
  }
  trix.show();
}