/* Run1write.pde - Mama's BIG-IO-output write running light
Run1write *PRELIMINARY* Arduino library BigIOoutput example
Copyright (c) 2011 Devon Sean McCullough
Licensed under the GPL (GNU Public License)

HARDWARE
Arduino <===> MotherboardShield <===> Mama's BIG-IO-output ====> 64 lamps
        <===> USB Serial <===> Programmer
digital outputs to SRCLK, RCLK, SER
optional outputs normally wired low to ~OE, high to ~SRCLR

Arduino	Hard-	silk-
Pin	ware	screen
----	------	------
D0	Serial	RX
D1	Serial	TX
D2
D3
D4
D5
D6
D7	BigO	SER
D8
D9
D10	BigO	RCLK
D11
D12	BigO	SRCLK
D13
GND	BigO	~OE
+5V	BigO	~SRCLR

Serial digital pins 0, 1.
BigO digital pins 7, 10, 12.
*/
#include <BigIOoutput.h>
#ifdef DEBUG
#define debug Serial.print
#else
#define debug(m)
#endif

//                 size mirror SER SRCLK RCLK
BigIOoutput output(  64,  NULL,  7,   12,  10);

///int test1 = (Serial.begin (115200), 0);
///int test2 = (Serial.print ("Bah"), 0);
///int test3 = (Serial.print ("Humbug"), 0);

void setup() {
  ///  int test4 = (Serial.print ("mystery\n"), 0);
  debug ("setup\n");
  output.write((BigIO_t)0, 64, 0);
}

byte light = 0;

void loop ()
{
  ///  int test5 = (Serial.print ("confusion\n"), 0);
  debug (light ? "loop\n" : "loop 0\n");
  byte olight = light;
  light = (light - 1 + 64) % 64;
  output.set(false, olight);	// snuff the old lamp
  output.write(true, light);	// light the new one
  delay(20);
}

///int test6 = (setup(), 0);
// end Run1write.pde