The terms microprocessor and microcontroller have always been confused with each other. Both of them have been intended for real-time use. They share several mutual features and also they have important differences. Both the IC’s such as the Microprocessor & microcontroller cannot be well-known by looking at them. They are obtainable in different version starting from 6-pin to as high as 80-100-pins depending on the features.
The term ‘GPS’ stands for Global Positioning System module is a device that has become a most important tool in the surveillance field, scientific use, and tracking. This GPS modem is based on satellite navigation technology that provides the information of time and location in all weather situations anyplace on the earth. The main use of the GPS system is to track the vehicle or person’s location. A GPS receiver finds the exact location of an object in terms of longitude, latitude and also offers timing services, reliable navigation and positioning to the users at any place and anytime on the earth.This article discusses how GPS modem interfaces with an 8051 microcontroller working, and its applications.
The various electrical and electronics components and many other types of electronic devices use a semiconductor, rather than a conductor. A semiconductor is one type of material like Si (silicon), that has some of the properties, that has some properties of both the conductors and also insulators. In fact, they have termed a whole valley in California after it. In its clean state, Si behaviors an electric current poorly.But, if we add soils like phosphorus or boron to the Si, it conducts. When you add phosphorus, it becomes an “n”-type semiconductor similarly, we add boron, it becomes a “p”-type semiconductor. A P-type semiconductor has fewer electrons than a pure semiconductor and an N-type semiconductor has more electrons than pure semiconductors.When the regions comprising phosphorus and boron are next to each other in Si, you have a PN-junction. The flow of current is only in one direction across a PN-junction.
There are a number of standard microcontroller families which are used in various applications as per their competence and possibility to perform the preferred task, most common microcontrollers are 8051, AVR and PIC microcontroller. In the year 1996, AVR was developed by Atmel Corporation. The architecture of this microcontroller was developed by “Alf-Egil Bogen” and “Vegard Wollan”. The term AVR derives from its developers and stands for Alf-Egil Bogen Vegard Wollan RISC microcontroller, also known as “Advanced Virtual RISC”. The first microcontroller AT90S8515 was based on the AVR architecture, but the first microcontroller to hit the salable market was AT90S1200 in the year 1997. In this article, we will present you to this basic of microcontroller, and its applications.
Nowadays, in several complex systems, there is a simple problem for car parking systems. There are various lanes of vehicle parking, So to park a car one has to search for the lanes. Moreover, there are a lot of labor men involved in this procedure for which there is lots of investment. To overcome this problem, here is a system which specifies the parking slot is vacant in any lane. This project includes IR transmitter, IR receiver in every lane and also a LED and LCD displays at the outside of the car parking gate. So the person entering into parking area can see the display board and can select which lane to enter so as to car parking.