PIC 16F877A

TIC TAC TOE is a commonly traditional game in Yemen, which consists of two players. One of the player chooses a cell of the game and puts an X mark in the chosen cell while the second player chooses another cell and puts an O mark in this second cell. The purpose of the paper is to transport this commonly traditional game to modern electronic game to get along with modern electronic world. The modern electronic game is important to countryside children's, so that they can play the game safely without incurring diseases. It also aims to offer children an opportunity to deal with cheap modern techniques. The game designed in this paper is based on the microcontroller (PIC16f877A).

The WDT is similar to the Master Clear External Reset as it will hold a PIC® MCU in reset when activated and place the Program Counter back to the beginning of the program software (org 0). The WDT is activated when its time-out period is exceeded. It is a free running timer independent of the main system clock. If the operation of the code in the device is affected by an external source that causes the software to deviate from its expected path, the WDT may be able to reset the device automatically depending how the reset is used in the design. The software designer can place instructions to clear the WDT counter and prevent a WDT reset from occurring. It's when those instructions are not executed, such as when an external interference affects the proper operation, that the WDT will engage and reset the device.

With advancing technology, the place and importance of robots in human life is increasing day by day. When we look at the present from the past, it can be seen that there are differences in the purpose of creation of robots. The ability to operate autonomously and the ability to operate on an operator control allow them to be indispensable. As days go by, these machines that are used in place of humans have faster, longer life and higher working capacities. One of the robots working in these work areas is the spider robots. Spider robots can be divided into robots with Hexapod (6 legged), Quadruped (4 legged) and similar types.
In this project, a hexapod (6-legged) spider robot is dealt with.

Özet
Görme engelli insanların yürümeleri esnasına tehlikeleri fark ettiren çeşitli önlemler mevcuttur. Bu önlemlerin belki de en yaygın ve en ucuz olanı bastondur. Beyaz baston olarak adlandırılan klasik görme engelli bastonu, yer seviyesine yakın tehlikeleri fark edebilirken boy seviyesine yakın tehlikeleri fark edememektedir. Yarasalar uçarken engellere çarpmadan kolaylıkla ilerleyebilmektedirler. Bu durumdan ilham alan bilim insanları ultrasonik sensörleri, mesafe tahmini ve engelden kaçma gibi birçok elektronik sistem tasarımında kullanılmaktadır. Ultrasonik sensörlerin beyaz bastonlara ve şapkalara entegrasyonu ile akıllı baston ve akıllı şapka sistemleri  geliştirilebilmektedir. Bu tip sensörlerin engel mesafesini mikrodenetleyiciye veri olarak göndermesiyle görme engelli insanlara sesli ve titreşimli uyarı verebilmektedir. Yaptığımız bu proje ile görme engelli insanların hayatlarını kolaylaştıracak ve engellere takılmadan ilerleyebilmeleri sağlanacaktır.
Abstract
There are various preventions of an accident during walking of visually handicapped people. The most common and cheap way of this kind of prevention may be a walking stick. Virtually handicapped people's walking stick, known as a white walking stick, can notice the dangers of near ground level but can't notice the dangers of near height level. Bats are able to move easily without hitting the obstacles while flying. Scientists, inspired by bats, are used ultrasonic sensors in many electronic system designs such as distance estimation and escape from obstacles. These types of sensors, sent distance data to the microcontroller, can provide an audible and vibrating alert to a visually handicapped person. This project will make visually handicapped people's life easier by providing a sense of obstacles and alert the user with sound and vibration.

The world is changing , now the extreme , various invented things attract the people . Fun and games are very important for everybody , and the producers know this detail so technology follows this stripe : innovation …
In this project we did a real innovation , we had found a new way for doing something . A distinction is typically made between invention, an idea made manifest, and innovation, ideas applied successfully . We tried to make a distinction at this world with this project .Like Fagerberg said ―An important distinction is normally made between invention and innovation. Invention is the first occurrence of an idea for a new product or process, while innovation is the first attempt to carry it out into practice ― we found a new idea and we processed it .
Although you know the different version of this project which is called ―AMBILIGHT‖ that Philips did for TV. We made the new version of it for PC , which is more useful and functional . Because today‘s world is PC world , you can do so many things with your PC which include watching TV . You can use JLight in your PC anytime you want . You can use it when you are watching film , watching tv , playing games , watching concern etc . We tried to attract the people that prefer the technology for fun and use computer heaps of time . You can enjoy your ride with JLight .
In this project we used all our knowledge which we get in our education .
In software part we used JAVA programming that all know from our college , although for pic programming we used CCSC codes which is same as C that the common lesson at our school .
In hardware part we used the knowledge that comes from our electronic courses especially from Electronics 1 and Electronics 2 , because we worked with N type of Mosfets . Besides we used our knowledge that comes from Logic Design , we used Pic Microcontroller which is enhanced of logic gates that we used at Logic Design Labs . For all that we used the resistors , capacitors , board etc.

This project is designed to develop as a robotic vehicle that can be controlled by a cell phones. DTMF commands from a phone send to another cell phone which is mounted on the robotic vehicle. These commands are fed to a PIC microcontroller of 8-bit architecture to operate the vehicle movement through motor interface.


Conventionally Wireless-controlled Robots Use Rf Circuits, Which Have Limited Working Range, Limited Frequency Range and Limited Control. Use of a Mobile Phone for Robotic Control Can Overcome These Limitations. It Provides the Advantage of Robust Control, Working Range as Large as the Area of the Service Provider, No Interference with Other Controllers. Although the Appearance and Capabilities of Robot Vary Vastly, All Robots Share Feature of a Mechanical, Movable Structure Under Some Form of Control. The Control of Robot Involves Three Distinct Phases: Perception, Processing and Action. Generally, the Preceptors Are Sensors Mounted on the Robot, Processing is Done by the On-board Microcontroller or Processor, and the Task is Performed Using Motors or with Some Other Actuators. In This Project the Robot is Connected to Gsm mobile (using DTMF technology) Which is Controlled by User Mobile Phone. With the Help of Commands We Can Move Our Robot in Desired Direction as Per Our Requirement.

COMPONENT USED:

* DTMF DECODER
* 8-BIT PIC MICROCONTROLLER
* CELL PHONES
* DIODES
* BATTERY(6-VOLT)
* DC MOTOR
* WHEELS ETC.

Project By Abhi Sharma.

With rapidly changing computer and information technology and much of the technology finding way into vehicles, vehicles are undergoing dramatic changes in their capabilities and how they interact with the operators (drivers). Although some vehicles have provisions for deciding to either generate warnings for the human driver or controlling the vehicle autonomously, they usually must make these decisions in real time with only incomplete information. So, it is important that human drivers still have some control over the vehicle. So we propose a design for such System specially for vehicle to avoid the accidents due to drunken driving, low/high air in tyre's or an accidental fire in vehicle due to high engine temperature, accident(s) while parking & also this system controls the headlight & wiper of vehicle as per the environment condition.

o—This proyect is bassed in the implmentation of electronical systems of telecommunications and programation of microcontrollers, with the purpose to employ the knowledges acquired in the design, optimitation of a tool which is feasible, applicable and efficient. In this case it was choosen like tool a mechanical jack, thanks to their easily, also their functionality. Jack was coupled to a electric motor and this to a control system bassed in a relays system to the turn change. This will can be controlled in turn for a smartphone with a application on android system.

The paper describes the design and development of a mobile robot, driven by two modified micro servo motor (works as DC motor), that act as a player in a particular soccer game competition. The robot is guided by IR sensors to follow lines and by choosing optimal path to reach the ball and take it to the opponent's goal. The 12 × 12 cm robot can perceive the presence and position of the ball; it also can sense the presence of obstacles and the opponent on its moving direction. It is capable to revolve itself as 90 or 180 degrees without moving the position of the center point of the joint line of the two wheels. It is important that in indoor environment a mobile robot must know its position, to navigate reliably. In this particular soccer game the robot updates its position every time whenever it passes the cross section of the ground lines. To understand the direction of its movement and the position of the opponent goal area, an algorithm is also designed and implemented into its controller chip.

This study is focused on creating a runway lights checker using a programmable micro controller and a LED to indicate if the light is good or not. Each light has its corresponding number. Two 7-segment displays are also used to display the number of the light being checked. Each light has its own comparator. After the comparator checked the current and voltage, the output is then displayed by the LED indicator. This system continuously checks runway lights from one to sixteen over and over again and displays its output in the LED indicator. Based on the trials that were performed, the system only checks up to a maximum of 16 lights. The results of the trials were accurate. The comparator and multiplexers operates well and gave an appropriate output. Therefore, this system “RUNWAY LIGHTS CHECKER” can be considered an alternative means of checking of runway lights.
Furthermore, the researcher recommends to have a data storage for this system.

This paper aims at controlling a robot that is a tank like vehicle using a universal infrared remote
control. The infrared signal sent from the universal infrared remote control is received by IR receiver and
decoded by the microcontroller PIC16F873A using an algorithm embedded in the microcontroller. The output
from the microcontroller is fed to the motor driver which drives the left and right motors. The robot‟s motor
control can be speed controlled by using PWM/PDM (Pulse Width Modulation/ Pulse Duration Modulation)
technique.

Over the years, access control systems have become more and more sophisticated and several security measures have been employed to combat the menace of insecurity of lives and property. This is done by preventing unauthorized entrance into buildings through entrance doors using conventional and electronic locks, discrete access code, and biometric methods such as the finger prints, thumb prints, the iris and facial recognition. We have designed a flexible and low cost modular system based on integration of keypad, magnetic lock and a controller. PIC 16F876A which is an 8-bit Microcontroller, is used here as a main controller. An advanced simulation based compiler Flowcode V4 is used to develop the software part
in this project.