Projects On Embedded Systems

The concept of this project is designed with the front end in c language,while the backend is designed over the RF and Microcontroller based controlling system the robot can be automatically turned and controlled using pc the control signals from pc are obtained from pc keyboard and is analyzed by c language then it is passed over to printer port an encoder interfaced with the RF Transmitter transmits the signal from printer port the receiver is placed in the robot which receives the signal and codes it the microcontroller the microcontroller in turn controls the motor to turn left or right with the available commands from the system.

This project utilizes the atmel 89c52 micro controller. The project tracks a solar cell panel so that it gets maximum power and illumination from the sun at any time. The coding is done with embedded c. The sensor used here is an LDR, the microcontroller is so programmed such that it tracks the stepper motor to which the solar panel being attached to receive maximum illumination. Thus increasing the quantity of energy produced.

This project utilizes an atmel 89c52 microcontroller to monitor the approximate speed of the wind and its direction of blow the project uses an pressure sensor whose resistance changes as per the wind pressure the output of the pressure sensor is fed to the mcrocontroller for further calculation of speed thereby displaying it on the 7 segment display the angle is detected by means of IR transceivers the output of the IR Trans-receiver is used to display the direction of wind in an seven segment display.

The gadget monitors for the presence or monitors some events such as intruder movements over a narrow way by means of a IR Trans-receiver or an ultrasonic Trans-receiver the data is further fed to the microcontroller and is displayed over an lcd/7 segment/pc when ever the activity of persons /objects crosses certain limit the device automatically alarms or dials automatically to respective numbers or even to police.

This robot uses IR rays / light rays as its food i.e. it searches for the availability if light source while the source is available it automatically moves towards the source the programming and hardware design is done over the atmel microcontroller the programming is done in embedded c language the controller used here is atmel 89c51 microcontroller the sensor may be a photodiode or any TV Remote Sensor can be used for this purpose.

Earthquake monitor uses an proximity sensor and an sound sensor the earth quake is basically of low frequency vibrations so the sensor used should detect the low frequency vibrations. so in this project we are using an electronic condenser micro controller which senses the noise and low frequency vibration while the proximity sensor monitors the shakings or strong zigzags over the environment thus the device warns about the presence of earth quake or noise the display can be done over an led array or in a graph in pc using audio port of pc. This project can also alarm and dial for the emergency service such as fire and police.

This project utilizes an atmel 89c52 microcontroller to monitor the pollution content of the air. The project uses an smoke sensor whose resistance changes as per the smoke content in the air the output of the smoke sensor is fed to the microcontroller for warning about the pollution in the air and the microcontroller also warns about the presence of the smoke by means of alarm a dialer system may also be added so that it dials to certain number and informs about the presence of smoke.

This project monitors and informs about the status of the electronic device whether its on or off using telephone lines and interactive voice response system the user should dial the device number to be monitored and the gadget inform us about the status of the device whether it is on or off. With a small modification the project can also be made to control devices over the phone the technology used here is known as DTMF Technology the coding is done over embedded c the controller used her is atmel 89c52 controller the apr9301 chip is used for recording and playback of voices.

The device is capable of reading secret codes being send from remote telephones for example if myself and my friend want to say some secret numbers over phones he can do it by this gadget what he has to do is nothing but dialing of those numbers via the phone keypads the device attached in my phone reads the number dialed by him in an intelligent lcd display.

This project can control up to 16 external devices the pc is the front end of the project the programming of pc is done over c language while the backend of our project is wired around atmel 89c51 microcontroller. The control output is obtained from pc printer port it is then encoded as a tone data and is send over using RF transmitter the receiver picks the signal and reconstructs the tone a decoder unit decodes the tone data as a binary data the binary is in turn demuxed and is converted as decimal controller signal using the microcontroller 89c51.