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//>>> The latest version of this code can be found at https://github.com/jcw/ !!

// Test sketch for the JeeSMD plug - continuously toggle all the I/O lines.

// 2010-03-18 <jcw@equi4.com> http://opensource.org/licenses/mit-license.php

// $Id: SMDdemo.pde 7763 2011-12-11 01:28:16Z jcw $

byte value;

void setup () {

    UCSR0B = 0; // disable the UART

    for (byte i = 0; i < 20; ++i)

        pinMode(i, OUTPUT);

}

void loop () {

    value = !value;    

    for (byte i = 0; i < 20; ++i)

        digitalWrite(i, value);

    delay(500);

}