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Study the working decoder for conversion of BCD into 7segment display code

Posted by: seminar class
Created at: Friday 13th of May 2011 06:11:02 AM
Last Edited Or Replied at :Friday 13th of May 2011 06:11:02 AM
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448 and the 7–segment common anode LED display. Identify them with their proper pin configurations.
2) Switch on the power supply of the circuit.
3) Connect different BCD inputs from 0000 to 1001 and note down the corresponding output on the display.
4) Tabulate the readings
Brief theory – to display the data, we have to convert it from BCD to 7-segment code. The IC makes this process. It has four inputs called BCD inputs and seven outputs to drive the display.
For common anode LED display, the decoders used are IC 7446, IC 74246, IC 7447, IC 74247 etc. They have active low, ..................[:=> Show Contents <=:]

Automatic car parking system

Posted by: seminar project explorer
Created at: Monday 14th of March 2011 06:35:25 AM
Last Edited Or Replied at :Friday 12th of October 2012 02:54:42 AM
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A gate has been provided at the entry of the parking space, which opens on the arrival or departure of a car. A display section has been provided, which consists of status signals and a display showing the number of cars present in the parking space at any point of time. After the maximum number or cars have entered the parking space, the gate is automatically disabled for vehicles seeking entry into the parking lot. A logic circuit distinguishes between the cars and persons or two wheelers, so that persons and two wheelers are not included in the count for cars.

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Posted by: seminar class
Created at: Monday 28th of February 2011 02:22:18 AM
Last Edited Or Replied at :Thursday 04th of April 2013 11:34:57 AM
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entered the counter get decremented .when all the seats are occupied by viewers the counting system stop. and it indicate ‘HOUSEFULL’ by using a LED and the door is closed permanently. So no one can enter the theater until the show is finished.
The main advantage of this project is to reduce the rush of people in theater no malpractice held. It also can use in high secured function and other meetings.

The power supply is used for providing the required power for driving the overall circuit. Here we used a DC power supply
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digital electronics project

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:53:16 AM
Last Edited Or Replied at :Friday 23rd of November 2012 02:14:52 AM
single chip timer with digital clock and calender, multi melody generator with instrumental effect , a single chip timer with digital clock and calender, nending machine project in vhdl , staircase climbing robot rf controlled kit price, vending machine using vhdl project , a single chip timer with digital clock and calendar project, www indvidval com , 4 digit 7 segment multiplex display, vhdl fpr cw receiver , electronic voting m c vhdl code, plc based object counter using conveyor belt , electronic dice using at89c2051, wireless biomedical monitoring system , digital electronics, digital electronics project , digital electronics project ideas,
troller Based
88. Micromotor Controller
89. Lan Based / Telnet Based Control & Monitoring
90. Speller Effect Sign Display
91. Development of Huffman encoder for MPEG- video encoding applications
92. Anti-Theft Security For Car Audios
93. Mechanical tolle bridge system.
95. FM Booster
96. wireless access systems
97. Design of real time clock on FPGA for portable hand held applications
98. Web-based programmable logic controller learning system IEEE
99. Digital Dice
100. 4 Digit 7-Segment Multiplex DISPLAY
101. Under-/Over-Vol..................[:=> Show Contents <=:]

electronics project design

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:52:46 AM
Last Edited Or Replied at :Wednesday 29th of December 2010 06:52:46 AM
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-Colour Display Using Bicolour LEDs
152. Temperature Dependent DC Fan Speed Control Using Thermistor
153. Robotic Stick for Blind
154. Metal Detection Robot.
155. Computer Oscilloscope
156. DESIGN OF pneumatic Pick and place Robot
157. Fire & Smoke Alarm System
158. Simple Short-Wave Transmitter
159. Implementation of heart beat monitoring using DWT
160. Booth Wallace tree multiplier (VHDL).
161. Automation of Poultry Farm Using Micro Controller
162. Electronic Metronome
163. MICROCONTROLLER BASED Paint Spraying Robot
164. Comparison of KL & FM circuit partitioning algorithms for..................[:=> Show Contents <=:]

electronics project for final year

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:24:05 AM
Last Edited Or Replied at :Wednesday 29th of December 2010 06:24:05 AM
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microcontroller synthesizable model and implementation
152. Generation Of -Sec Pulses Spaced -Sec Apart
153. Fluid Level Detection
154. Ramp Controlled Light
155. Wireless Weather Station (Temp,Humidity & Light Intensity & wind Speed with PC Logging)
157. LFSR (Linear Feedback Shift Register)
158. Telephone-Operated Calling System
159. Touch & Light Sensing Robot
160. Stepper Motor Conrol Using PC
161. RFID based Automatic Room Light with Access control
162. Home Automation (Ac/Dc) Using Pc Interface
163. Watchman Watcher
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Simple digital stopwatch using at89s51 Microcontroller

Posted by: project report helper
Created at: Thursday 14th of October 2010 05:57:00 AM
Last Edited Or Replied at :Tuesday 19th of March 2013 02:19:53 AM
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• The display will show 00 at the startup
• Press the switch SP1 to get the watch to run
• Press the switch again to stop the watch
• To start the watch press the same switch again
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Posted by: project report tiger
Created at: Thursday 04th of March 2010 03:43:51 AM
Last Edited Or Replied at :Thursday 04th of March 2010 03:43:51 AM
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normally low and draws the RT/GT pin to keep low through discharge of external RC. When a valid tone input is detected, EST goes high to charge RT/GT through RC.
When the voltage of RT/GT changes from 0 to VXRT (2.35V for 5V supply), the input signal is effective, and the correct code will be created by the code detector. After D0-D3 are completely latched, DV output becomes high. When the voltage of RT/GT falls down from VDD to VTRT (i.e.., when there is no input tone), DV output becomes low, and D0-D3 keeps data until a next valid tone input is produced.
By selecting adequate external RC ..................[:=> Show Contents <=:]

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