Timers are common features of most microcontroller. In simplified terms a timer is just a register whose value keeps increasing (or decreasing) by a constant rate without the help of the CPU. The CPU can read or write this register any time. It reads it find out how much [...]

Hello Friends! In this tutorial I will discuss how to practically do a simple communication over RS232 interface. For those who are completely new to this I clarify that the motive is to send and receive data between two device using a standard called RS232. RS232 is serial interface [...]

#include <htc.h> #define _XTAL_FREQ 20000000UL typedef unsigned char UINT8; typedef signed char INT8; typedef unsigned int UINT16; typedef signed int INT16; //Connection of Seven segment display #define SEVEN_SEGMENT_LAT PORTD #define SEVEN_SEGMENT_TRIS TRISD //MUX Control #define MUX_PORT PORTB #define MUX_START_POS 1 //From which bit on port the select lines start //MUX settings #define MUX_DISP_COUNT 4 //Number of displays //Global Varriable UINT8 DisplayArray[MUX_DISP_COUNT];//Holds 'data' for each disp void SevenSegmentWrite(UINT16 n) { /* [...]

A large number of embedded project require some type of user interface. This includes displaying numerical, textual and graphical data to user. For very simple numerical display we can use 7 segment displays. If the requirement is little more than that, like displaying some alphanumeric text, we [...]

Hello friends, welcome to this exciting tutorial were we will begin our journey with latest PIC18F micros from Microchip Technologies. This tutorial will give you information on what software/hardware you will require and basic steps on how to get, install, configure and use them. After going through [...]