Multiple Serial Communication on Avr Mcu??????????
This question comes up from time to time, and I want to give a simple solution in this problem.
My friend needs MCU with 4 UART (@ 38.4 KBaud each respectively) to their robot projects in Battle Division KRCI (Kontes Robot Cerdas Indonesia) 2010. 4 UART is a problem, because the simplest MCUs (AVR, PIC) do not have
chips with this number.
This monograph is a revised version of the D.Phil. thesis of the first author, submitted in October 1990 to the University of Oxford. This work investigates the problem of mobile robot navigation using sonar. We view model-based navigation as a process of tracking naturally occurring environment features, which we refer to as “targets”.
This book is an introduction to programming interactive 3D computer graphics using DirectX 9.0, with an emphasis on game development. It teaches you the fundamentals of Direct3D, after which you will be able to go on to learn and apply more advanced techniques. Assumingly, since you have this book in your hands, you have a rough idea of what DirectX is about.
How difficult is it to design and fabricate printed circuit boards?
When you look at a finished printed circuit board—with an often-complex circuit pattern and a mixture of through-hole and surface mount components you may think creating your own boards would be a difficult, time-consuming task that would require specialized tools and expertise.
/***************************************************************************
File : keypad-4x4-int-timer.c
Description : Main module
Project : Keypad Matrix 4x4 Auto Scan (Interrupt Timer)
Version : 1.1.5
Author : nashrul@nashrul.co.cc
Date : 2006 - 2008
***************************************************************************/
#include <mega16.h>
#include <lcd.h>
#include <delay.h>
#include <stdio.h>
#define kolom1 PORTA.0 // out 1
#define kolom2 PORTA.1
#define kolom3 PORTA.2
#define baris1 PINA.4 // in Pull
#define baris2 PINA.5
#define baris3 PINA.6
#define baris4 PINA.7
#asm
.equ __lcd_port=0×18 ;PORTB
#endasm
char buf[17];
unsigned char sss, ss, mm, tt, key, old_key, temp_tt, temp_mm, temp_ss;
int menu_state = 0;
int time_state = 1;
int top_lcd = 0;
int trip = 4530;
int blink;
int bottom_lcd = 0;
int pulses = 0;
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{}
interrupt [TIM1_COMPA] void timer1_compa_isr(void)
{sss++;
if (sss>5){blink=0;}
if (sss=10){ss++;sss=0;blink = 1;}
if (ss==60){mm++;ss=0;}
if(mm==60) {tt++;mm=0;}
if (tt==24){tt=0;}
}
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