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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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74247 is required.
4) In common anode FND 507 type display, the anodes of all LEDs are connected to a common line and connected to +5V regulated power supply. The cathode of each LED segment is used as input from ‘a’ to ‘g’.
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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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on comprises of two light emitting diodes which transmit high power light beams. These light beams are incident on the receivers, which produce an output of zero volt if the beam received is uninterrupted and +5V if the beam is interrupted by a car. These receivers are the Light Detecting Resistors which are arranged in such a manner so as to detect the light even after the obstacle between the sensor and receiver passes through. The working of the sensors is based on the voltages across collector, emitter, and base respectively.
Whenever a car enters..................[:=> Show Contents <=:]


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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he other is used to close the door. Working of LDR2 is same as that of LDR1 it contains the same component that of former circuit. And the output of the relay is fed to the set pin of SR f-f.
The reset pin is enabled when the person pass the LDR1 and the set pin is enabled when the person pass the second LDR. SR f-f has two output one output is fed to the AND gate as input and the other input to the AND gate is from the counter section. The output of and gate is fed to a TIP then TIP to a relay and from relay it is connected to a door. The relay here we used are of 12V when the reset pin of ..................[:=> Show Contents <=:]

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,
frared Control For Pc
79. Data Logger
80. Linear feedback shift register (VHDL).
81. Precision Digital AC Power Controller
82. Access Control With 5 Different I.D + 5 Different Password Controls
83. Contact-less Transmission of Signal Between Sensors and Conditioning Circuit
84. 3-q Dual Converter
85. uC Based Digital Panel for Vehicles
86. Automated Car Parking System
87. Microcontroller Based RFID Tag Reader Microcontroller Based
88. Micromotor Controller
89. Lan Based / Telnet Based Control & Monitoring
90. Speller Effect Sign Display
91. Development of Huffman encoder for ..................[:=> 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
programs for voters identification system using labview , dynamic temperature indicator and controller project, who s first game indicator , ppt finger impression based ration card system, metronome program vhdl , electronic voting m c vhdl code, temperature controlled water bath , atmega16 asm program for mobile controled robot, design of automatic off timer for cd players , thermistor thermometer 7 segment vhdl project, cardiac arrest auto car control using gsm , fuse cum power failure indicator, bank token apparatus ,
168. Centralized wireless monitoring in textile industries
169. Prepaid Fare Card for Railways
170. Frequency Measurements Using PC
171. GSM robot with auto path finder + anti falling concept
172. Infrared Firecracker Igniter
173. 8051 Microcontroller Programmer
174. Digital Stop Watch
175. Automatic Telephone Answering Machine
176. Industrial Furnace Temperature Monitoring and Control
177. Musical Touch Bell
178. Smart Laptop Docking Station
179. full-duplex operation
180. Long Duration Timer
181. Reorganization of thumb impression (C).
182. Speed Control..................[:=> 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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r Anti-Theft Wireless Alarm
254. Sensors And Light Dependent Resistor
255. Pattern Recognition System
256. Time Operated Home Appliances
258. Six Channel Petrochemical Fire Monitoring & Control Station
259. Speed Control of DC Motor using PWM
260. PIC microcontroller based pick and place robot controller
261. Security System Based on PC
262. Low-Cost PCO Billing Meter
263. Micro Controller Based Water Level Controller Cum Motor Protector
264. Robotics arm for test tube filling application with PC interface
265. DISPLAY The D..................[:=> Show Contents <=:]

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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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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HT9170 DTMF Receiver
Operating voltage: 2.5V-5.5V
Minimal external components
No external filter is required
Low standby current (on power down mode)
Excellent performance
Tristate data output for \iC interface 3.58MHz crystal or ceramic resonator 1633Hz can be inhibited by the INH pin HT9170B: 18-pin DIP package HT9170D: 18-pin SOP package
General Description
The HT9170 series are Dual Tone Multi Fre¬quency (DTMF) receivers integrated with digi¬tal decoder and bandsplit filter functions. The HT9170B and HT9170D types supply power-down mode and inhibit..................[:=> Show Contents <=:]

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