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1:17
Model no : 11 The outline of the project is to shut down the power supply when it is overloaded. Conventional circuit breaker is based on thermal bimetal lever trip mechanism, which is very slow and the trip time is dependant upon the percentage of overload. So, Electronic circuit breaker is designed which is based on the voltage drop across a series element typically a low value resistor or a CT (current Transformer). The voltage sensed is compared against the preset voltage proportional to the current by a level comparator to generate an output for the Relay or contactor to trip the load. The unit is extremely fast and overcomes the drawback of the thermal type. It uses an 8-bit microcontroller from 8051 family into which program is burned for the operation of this project. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
3 Mar 2012
770
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1:09
Model no: 12A This project is designed to operate a garage door remotely by laser beam. The circuit comprises of a laser beam sensor built using op-amp IC LM358. Op-amp’s are configured here as a comparator. The Microcontroller used is 8-bit, 40 pin from 8051 family. It is used to control the whole system by monitoring the sensors and when the laser sensor receives the signals then the microcontroller will send command to relay driver IC the contacts of which are used to switch on the motor used for opening the garage door and it will switch off the motor after predetermined time. The status of the door whether it is open or closed is displayed on the 16X2 LCD interfaced with the microcontroller. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
3 Mar 2012
459
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1:03
Model no : 13 Star/Delta starters are probably the most common reduced voltage starters in the 50Hz industrial motor world (Known as Wye / Delta starters in the 60Hz USA world). They are used in an attempt to reduce the start current applied to the motor during start as a means of reducing the disturbances and interference on the electrical supply. The Star/Delta starter is generally manufactured from three contactors; an electromechanical timer and a thermal overload for operating a 3 phase motor at 440 volt at ac mains supply 50 Hz. The interlocking arrangement of all the contactor coils is traditionally wired in 440 volt ac. However in our project we have taken up the same to operate a 3 phase motor at 440 volt ac mains supply 50 Hz with a set of 12 volt DC relays, an electronically adjustable timer and a set of miniature circuit breakers. The interlocking arrangement of the relay coils and the electronic timer are all wired in low voltage dc of 12 volt fed from an inbuilt dc power supply for safe handling of the starter during the study, still retaining its is application for a 3 phase motor starting with single phasing prevention .as the project would be expensive in using a 3 phase induction motor the project shall be tested with a set of lamps for each phase . during star operation the lamps would glow dim indicating the supply voltage across the coils are 440/sqrt(3) and while in delta condition after the timer operates the lamps would glow with full intensity indicating full supply voltage of 440volts. The timer comprises of a 555 in mono-stable mode the output of which is fed to a relay for changing the mains supply from 3 phase star to delta. The project also has the provision of single phasing protection since 3 phase motors get burnt if any one phase goes missing during running. The output to the lamps shall be completely cutoff in the event of any phase failure. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
3 Mar 2012
1487
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1:23
The main motto of the project is to drive an Induction Motor for the required application in forward direction and reverse direction with Wireless technology. In this project thesis, we are pressing a button from a TV remote which acts a transmitter and send signal to and it is received by a component called IR receiver, the output is fed to a programmable microcontroller from 8051 family, is engaged to actuate the Induction Motor to rotate in forward and reverse direction with help of relays which is driven by an IC ULN2003 (relay driver). The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
3 Mar 2012
816
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3:48
The main objective of the project is designing a programmable sequential switching of any load using embedded system based microcontroller concept. It uses microcontroller from 8051 family which is of 8-bit. The development of this application requires the configuration of microcontroller architecture that is the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, where it is used in the following mode i.e., the set mode, auto mode and manual mode for controlling different machines. In set mode, through the digital clock the machinery will run based on/off and on time where as in auto mode they will run by default settings and finally in the manual mode the real-time systems used extensively in industrial control applications can run depending on the user’s need and flexibility. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
3 Mar 2012
469
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3:35
Model no: 15A The main objective of the project is designing an automatic washing machine for programmable sequential switching of motors using embedded system based microcontroller concept. The development of this application requires the configuration of microcontroller architecture that is the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, where it is used in the following mode i.e., the set mode, auto mode and manual mode for controlling different machines. In set mode, through the digital clock the machinery will run based on/off and on time where as in auto mode they will run by default settings and finally in the manual mode the real-time systems. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
5 Mar 2012
359
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3:35
model no: 15A The main objective of the project is designing an automatic washing machine for programmable sequential switching of motors using embedded system based microcontroller concept. The development of this application requires the configuration of microcontroller architecture that is the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, where it is used in the following mode i.e., the set mode, auto mode and manual mode for controlling different machines. In set mode, through the digital clock the machinery will run based on/off and on time where as in auto mode they will run by default settings and finally in the manual mode the real-time systems. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
5 Mar 2012
482
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1:58
Model no: 17 In this project, a generic real-time wireless communication system is designed and developed for short and long term remote patient monitoring applying appropriate protocol. The primary function of this system is to monitor the temperature of a patient’s body. The data collected by the digital temperature sensor is sent to the Microcontroller. The Microcontroller transmits the data over the air by RF (radio frequency). At the receiving end a receiver is used to receive the data and it decodes and feeds it to the Microcontroller, which is then displayed over the LCD display. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
5 Mar 2012
518
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1:22
Model no: 17A In this project, a generic real-time wireless communication system is designed and developed for temperature monitoring of a transformer to control room by applying appropriate protocol. The primary function of this system is to monitor the temperature of the transformer. The data collected by the digital temperature sensor is sent to the Microcontroller. The Microcontroller transmits the data over the air by RF (radio frequency). At the receiving end a receiver is used to receive the data and it decodes and feeds it to the Microcontroller, which is then displayed over the LCD display. For more info visit *******www.efxkits****; *******www.facebook****/edgefx The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components.
5 Mar 2012
427
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2:01
Model no : 18A The display unit, which is used to display the results of corresponding temperature of a nuclear plant and to generate a warning signal in the event of rising temperature beyond limits as set. Here the controller continuously polls the temperature with certain regular time intervals and displays over the 7_segment display unit for the Microcontroller to enable the whole operation by executing the program. The temperature readings observed by the microcontroller through temperature sensor are compared with the programmed temperature value to in turn operate the relay that switches on a warning device. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
5 Mar 2012
280
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1:45
Model no: 19 This application is used for office automation system to save energy. 555 timer driven 38 KHz signal from IR LED gets interrupted on to the IR receiver to sense the person entering as well as exiting which is fed to a 555 timer. The output of 555 timer is fed to the Microcontroller for analyzing and control purpose. The data obtained from microcontroller is given to the 7-segment display unit which displays the number of persons entering, and exiting. This project includes TSOP 1738 IR sensor for detecting purpose. A relay is used to control any load for alert through its ‘NO’ contacts. It is interfaced with microcontroller through a relay driver. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components. For more info visit *******www.efxkits****; *******www.facebook****/edgefx
5 Mar 2012
493
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2:44
Model no: 23 The outline of the project is that the text message typed using a computer keyboard attached to a microcontroller to be sent, is encrypted by using an appropriate program with LCD display and then the encrypted message is transmitted through wireless using Radio frequency transmitting Module. At the receiver end the signal is received by the RF receiver module and the analog signal is converted to digital form. It is fed to another Microcontroller where it is decrypted by the program and the message is then displayed over the receiver LCD display. The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components.
6 Mar 2012
341
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