/* 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 3 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
*/
#include // Standard Integer Types
#include // Standard IO facilities
#include // General utilities
#include // Boolean
#include // Strings
#include // AVR device-specific IO definitions
#include // Convenience functions for busy-wait delay loops
#include // Interrupts
#include // Watchdog timer handling
#include // Program Space Utilities
#include // Power Management and Sleep Modes
#include "uart.h" // basic UART functions
#include "main.h" // main definitions
/* switch off LED */
void led_off(void)
{
PORTB &= ~(1<