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project report on water level indicator using seven segment display


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Created at: Wednesday 17th of October 2012 08:33:20 AM
Last Edited Or Replied at :Saturday 04th of October 2014 01:01:00 PM
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i want a project report on water level indicator by using seven segment display.
thanks.. for the project report.. of water level indicator by using seven segm..................[:=> Show Contents <=:]



water level indicator using seven segment display ppt


Posted by:
Created at: Wednesday 17th of October 2012 08:31:55 AM
Last Edited Or Replied at :Thursday 18th of October 2012 03:39:04 AM
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i want project report on water level indicator by using seven segment display...................[:=> Show Contents <=:]



Water-Level Indicator using 7-segment display


Posted by: smart paper boy
Created at: Thursday 28th of July 2011 05:33:00 AM
Last Edited Or Replied at :Thursday 28th of July 2011 05:33:00 AM
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vels in the tank. Sensor A is connected to the negative terminal (GND) of the power supply. The other four sensors (B through E) are connected to the inputs of NOT gate IC 7404. When there is a high voltage at the input pin of the NOT gate, it outputs a low voltage. Similarly, for a low voltage at the input pin of the NOT gate, it outputs a high voltage. When the tank is empty, the input pins of IC 7404 are pulled high via a 1-mega-ohm resistor. So it outputs a low voltage. As water starts filling the tank, a low voltage is available at the input pins of the gate and it outputs a high voltage...................[:=> Show Contents <=:]



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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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, open collector outputs.
And for common cathode LED display, the ICs are IC 7448, IC 74248, IC 7449 etc. They have active high, open collector outputs.
Working of the circuit –
1) When BCD inputs from 0000 to 1001 are applied at the input terminals, the IC produces equivalent ou..................[:=> Show Contents <=:]



Microchip Controller based major projects for electronics


Posted by: project topics
Created at: Saturday 16th of April 2011 02:09:18 AM
Last Edited Or Replied at :Saturday 16th of April 2011 02:09:18 AM
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ic applications
8. Speed and Direction Control of DC Motor using PIC Microcontroller using PWM and H – Bridge
9. Electronic Complaint Record System with Administrator Play Back using PIC Microcontroller
10. Temperature Monitoring on Seven-segment Display using PIC Microcontr..................[:=> Show Contents <=:]



PRODUCT COUNTER


Posted by: seminar class
Created at: Friday 25th of March 2011 05:59:08 AM
Last Edited Or Replied at :Friday 25th of March 2011 05:59:08 AM
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e supply. Offset balancing and strobe capability are provided and outputs can be wire OR’ed. Although slower than the LM106 and LM710 (200 ns response time vs. 40 ns) the devices are also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LM106 and LM710. The LM211 is identical to the LM111, except that its performance is specified over a −25°C to +85°C temperature range instead of −55°C to +125°C. The LM311 has a temperature range of 0°C to +70°C.
Features
 Operates from single 5V supply
 Input current: 150 nA max. over tempe..................[:=> Show Contents <=:]



AUTOMATIC DOOR In theatres WITH DOWN COUNTER DISPLAY


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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d the output from the both OR gate is fed to another OR gate and the output from this OR gate is fed toe the AND gate with another input from the output of SR f-f. From this AND gate the tip is connected to open the door. The o..................[:=> Show Contents <=:]



MULITIPURPOSE ELECTONICS DEVICE CUM VISITOR COUNTING SYSTEM PROJECT


Posted by: Zigbee
Created at: Wednesday 18th of August 2010 01:14:08 AM
Last Edited Or Replied at :Wednesday 18th of August 2010 01:14:08 AM
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LEDs to emit IR radiations of the same frequency. These IR LEDs are kept at a
distance of 1m apart. Let them be IR1 and IR2.
The IR rays from the two IR LEDs are received by two TSOP receivers. The output of
the TSOP is low when it detects IR radiations and high otherwise. The outputs of these two
TSOPs are connected to micro controller input.
When a person enters the room, he first cuts the IR rays from IR1 and then from IR2.
This is sensed by the TSOP and micro controller increments the counter by one. When a person
leaves the room, he first cuts IR rays from IR2 and then from IR1. T..................[:=> Show Contents <=:]



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