/*
 * lambda.c
 *
 * Program for an AVR micro controller based circuit to measure exhaust
 * gas temperatures and residual oxygen of a wood oven.
 *
 *  Created on: 22.02.2015
 *      Author: dode@luniks.net
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * GNU Lesser General Public License Version 2.1 (the "LGPL License"), in which
 * case the provisions of the LGPL License are applicable instead of those
 * above.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU (Lesser) General Public License for more details.
 *
 * DISCLAIMER: I'm experienced with Java, but new to C.
 *
 * ATTRIBUTION: This project includes the module USART and the Makefile from
 * the code accompanying the book Make: AVR Programming by Elliot Williams,
 * a great book and a pleasant read, that helped me tremendously to get
 * started with AVR programming.
 */
#include <stdio.h>
#include <util/delay.h>
#include "USART.h"
#include "adc.h"
#include "sensors.h"
#include "integers.h"

/**
 * Initializes the USART transmitter and receiver, sets up the ADC
 * and sleep mode and then infinitely measures with a 1 second delay
 * in between.
 * TODO DIDR?
 * TODO replace delay by an interrupt or something else more efficient?
 */
int main(void) {
	initUSART();
	setupADC();
	setupSleepMode();

	// disable digital input on ADC0
	// http://www.openmusiclabs.com/learning/digital/atmega-adc/
	// DIDR0 = 0b00000011;

	// main loop
	while (1) {
		measure();
		_delay_ms(1000);
	}

	// never reached
	return 0;
}