to get information about the topic random flasher for 8 leds full report refer the page link bellow

http://seminarsprojects.net/Thread-random-flasher-for-8-leds-project ....etc

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to get information about the topic led wireless full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-led-wireless--2297

http://seminarsprojects.net/Thread-led-wireless ....etc

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Random Flasher for 8 LEDs Project This project flashes eight LEDs in an apparently random manner. It uses a 4026 combined counter and display driver IC which is designed for driving 7-segment LED displays. The sequence is not really random because seven of the LEDs would normally be the display segments, the eighth LED is driven by an output that is normally used for driving further counters. The table below shows the sequence for the LEDs. You can use less than eight LEDs if you wish and the table may help you decide which ones to use for your ....etc

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I would like to receive the ppt and seminar report for the topic wirelss communication using white led. My email id is [email protected]
Thank you ....etc

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LED BRIGHTNESS CONTROLLING USING SERIAL PORT



Interfacing with pc

Interfacing is done using RS232 DS-9 port which is connected to pc & microcontroller.
On port 3,at p3.0 & p3.1 the input signal is received.
TXD,RXD pins are also used in interfacing.

Sending signals from pc

To send signals from pc we need to make a software using vb .net .This signals will vary from 0 to 255.As per this signals the PWM will vary by duty cycle in microcontroller, resulting in a c ....etc

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To get full information or details of quiz buzzer circuit using led and buzzer without using led display please have a look on the pages

http://seminarsprojects.net/Thread-8-candidate-quiz-buzzer-using-8051-micro-controller-at89c51

if you again feel trouble on quiz buzzer circuit using led and buzzer without using led display please reply in that page and ask specific fields ....etc

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I feel as though there are many individuals on this site who haven't had the opportunity to see what our customers are doing with our products . I know browsing through thread after thread to see results can be daunting, so I've gone ahead and collected photos from many various grow demonstrations that are either completed, near completion, or in progress to show you that the future of lighting technology is here!

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surefire led flashlight
surefire flash light
surefire tactical ....etc

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This Project is very simple and when completed, causes a light-emitting diode (LED) to flash or pulse alternately on and off at a very slow rate, that is, at a low frequency. It could be used as a dummy car alarm indicator. You sometimes see these tiny pulsating lights in expensive cars protected by sophisticated car security systems, warning you that the car alarm is armed and ready.
For this design, the LED flashes on for a brief period and stays off for a relatively longer period. Because additional current is consumed from the battery ever ....etc

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blinking a led using 8051 ppt

This is the first project regarding 8051 and of course one of the simplest, blinking LED using 8051. The microcontroller used here is AT89S51 In the circuit, push button switch S1, capacitor C3 and resistor R3 forms the reset circuitry. When S1 is pressed, voltage at the reset pin (pin9) goes high and this resets the chip. C1, C2 and X1 are related to the on chip oscillator which produces the required clock frequency. P1.0 (pin1) is selected as the output pin. When P1.o goes high the transistor Q1 is forward biase ....etc

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SUPER BRIGHT LED FLASHER



This is a novel flasher circuit using a single driver transistor that takes
its flash-rate from a flashing LED. The flasher in the photo is 3mm. An
ordinary LED will not work. The flash rate cannot be altered by the
brightness of the high-bright white LED can be adjusted by altering the
1k resistor across the 100u electrolytic to 4k7 or 10k. The 1k resistor
discharges the 100u so that when the transistor turns on, the charging
current into the 100u illuminat ....etc

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