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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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cutter etc.
Circuit diagram

Procedure –
1) You are given IC 7447/7448 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 ..................[:=> 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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Hence, this LED must be ON when at least one of the sensors is being cut. For this reason, the Y0 line of the decoder is given at the anode of the LED. When no signal is being cut, the Y0 line is low, keeping the LED off. But as soon as any of the signals is cut, the Y0 line goes high, turning the yellow LED ON. The LED indication for various situations is depicted in table.


The gate control section consists of the motor driver IC the OR gate and the two D flip-flops which provi..................[:=> 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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The sensor is used for sensing person entering the theater. Here we used a light depending resistor in which resistance varies when a person cross by. The LDR get activate when the light gets cut. Two sensors are applied in which the sensor I is used to open the door and to count. And sensor II is used to close the door. Their output is leading to control unit.
Control Unit consists of an S-R flip flop in which the voltage from the sensors is fed to set, reset pins. One of the outputs is fed to open the door and the other is fed to counter.
COUNTER[..................[:=> 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
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ith PC Logging
193. Under-Over-Voltage Beep for Manual Stabiliser
194. Security Alert System For Industries with Smoke Sensor
195. Project Name
196. Crystal-Controlled Time-Base Generator
197. Application
198. Micro controller based Dam control system for power Generation
199. FPGA based implementation communication modulation
200. Security Robot for Banks
201. Wireless chatting system using RF
202. VLSI Based Traffic Light System(VHDL)
203. PC controlled complete microcontroller kit in VB
204. Appliance Timer
205. Add-On Stereo Channel Selector
206. Telecom Headset
207. A ..................[:=> 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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l Bell Management System
47. Microcontroller based tachometer
48. PC Controlled Transformer Winding M/C
49. Energy Metering using GSM modem
50. PC Based Stepper Motor SPEED Control.
51. Laser control
52. A Novel Rear-End Collision, Accident Avoidance, Distance Measuring Using Ultrasonic Technology
53. Atmega based DC motor conversion into a stepper motor
54. microcontroller based two wire eight load controller
55. Temperature Sensitive Fan
56. Ir- To- Rf Converter
57. Automatic rain fall detector
58. 8051 Programmer
59. Low cost PCO Billing meter
60. ADC Kit
61. microcontrol..................[:=> 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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103. Digital Over Load Indicator For Vehicle
104. Smart Hearing Aid
105. IVRS Microcontrollers Based
106. it’s Applications
107. Laser Torch-Based Voice Transmitter And Receiver
108. Built Your Own Multi-Frequency Digital Signal Generator
109. Long-Range IR Transmitter
110. Load Shedder (uC Based)
111. Simple Low-Cost Digital Code Lock
112. Airplane Speed Recorder
113. Maze Solving Robot
114. Frictionless Electromagnetic Breaking System
115. Electronic Motor Starter
116. Slave Robot
117. Home A..................[:=> 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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ment displays are used to display the time.
• 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
..................[:=> Show Contents <=:]


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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sitive power supply, 2.5V-5.5V for normal operation
DVB 0 CMOS OUT One-shot type data valid output, normal high, when the chip receives a valid time (DTMF) signal, the DVB goes low for 10ms.
December 20, 1999
Approximate internal connection circuits
VND”(V^\ _ 11 VREF OPA>-i-n OSCILLATOR X1 p. X2
i”VA <
20pF^10M ijllOpF CMOS IN Pull-high
i-t>^.... CMOS OUT Tristate
EN 1
Absolute Maximum Ratings
Supply Voltage -0.3V to 6V Storage Temperature -50°C to 125°C
Input Voltage VSS-0.3V ..................[:=> Show Contents <=:]

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