any project that uses flip-flops - Electronic Circuits Projects Diagrams Free

she_devil12ph10 · 7th July 2003, 10:28 AM

well my teacher want us to make a project any project using a flip-flop. Hard project huh. well can i ask for your help pls.

**kinjalgp** · 7th July 2003, 11:25 AM

You can make Winking Eyes using J-K master slave flip flop. Connect Q output of Flip-Flop to one LED and Q\ to other LED. Tie J and K inputs to Vcc. Apply slow clock (around 1Hz) to clock pin. This will make LEds to go on and off alternately. Very simple thing.

Or you can make ring counter using several Flip-Flops. If LEDs are connected to output of each Flip-flop, and initially the counter is loaded with 0001, then the circuit will make the LED run in a sequential order on each clock pulse. Simple circuit.

Or you can make a touch switch using T Flip-Flop which will turn the connected load ON/OFF on touching the touch plate. A bit complex circuit.

xjackal · 7th July 2003, 11:25 PM

well my second year final project was about 0-99 counter made with flip-flop.unfortunately i erased mine from my hdd. ihad the schema drawn but this link should help u too ithink.!we made it with 2 7447chip and 2 7490 chip.

xjackal · 7th July 2003, 11:26 PM

http://www.geocities.com/kemalsentuna/099counter.htm

Skapone · 19th July 2003, 09:04 AM

I had to do a uni assignment with flip-flops.
We had to make 4 flip-flops count in a predetermined sequence (our student number) i.e 04518369 then repeat.

Its an interesting project because it demonstrates the use of karnaugh maps and circuit simplification.
I would be happy to post my solution to this simple project.

tansis · 19th July 2003, 10:21 PM

An old favourite still in use...Electronic Dice
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Phasor · 19th July 2003, 10:38 PM

Tansis - just a bit of nit-picking - your diagram of the 555 doesn't show power supply or reset connections ( pins 1,4,8 ). I know it is usually omitted from logic gates, but for other ICs it is normally shown. And regarding the 'roll' switch - whilst it does work this way, wouldn't it be more conventional to put an NO switch between supply and pin 4?

tansis · 19th July 2003, 11:21 PM

Hello Phasor, well spotted.
I to used a more conventional circuit when I last built this, but perhaps a more elegant solution would be to use the spare logic to form an oscillator.

http://www.ee.ualberta.ca/~elliott/e...s/oscillators/

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7th July 2003, 10:28 AM	(permalink)
she_devil12ph10	any project that uses flip-flops well my teacher want us to make a project any project using a flip-flop. Hard project huh. well can i ask for your help pls. __________________ im not very good in making hardwares can somebody help me

7th July 2003, 11:25 AM	(permalink)
kinjalgp	You can make Winking Eyes using J-K master slave flip flop. Connect Q output of Flip-Flop to one LED and Q\ to other LED. Tie J and K inputs to Vcc. Apply slow clock (around 1Hz) to clock pin. This will make LEds to go on and off alternately. Very simple thing. Or you can make ring counter using several Flip-Flops. If LEDs are connected to output of each Flip-flop, and initially the counter is loaded with 0001, then the circuit will make the LED run in a sequential order on each clock pulse. Simple circuit. Or you can make a touch switch using T Flip-Flop which will turn the connected load ON/OFF on touching the touch plate. A bit complex circuit. __________________ "There is no way to peace, peace is the way!"

7th July 2003, 11:25 PM	(permalink)
xjackal	ii have made one well my second year final project was about 0-99 counter made with flip-flop.unfortunately i erased mine from my hdd. ihad the schema drawn but this link should help u too ithink.!we made it with 2 7447chip and 2 7490 chip.

7th July 2003, 11:26 PM	(permalink)
xjackal	sorry the links is.. http://www.geocities.com/kemalsentuna/099counter.htm

19th July 2003, 09:04 AM	(permalink)
Skapone	flip-flop project I had to do a uni assignment with flip-flops. We had to make 4 flip-flops count in a predetermined sequence (our student number) i.e 04518369 then repeat. Its an interesting project because it demonstrates the use of karnaugh maps and circuit simplification. I would be happy to post my solution to this simple project.

19th July 2003, 10:38 PM	(permalink)
Phasor	Tansis - just a bit of nit-picking - your diagram of the 555 doesn't show power supply or reset connections ( pins 1,4,8 ). I know it is usually omitted from logic gates, but for other ICs it is normally shown. And regarding the 'roll' switch - whilst it does work this way, wouldn't it be more conventional to put an NO switch between supply and pin 4?

19th July 2003, 11:21 PM	(permalink)
tansis	Hello Phasor, well spotted. I to used a more conventional circuit when I last built this, but perhaps a more elegant solution would be to use the spare logic to form an oscillator. http://www.ee.ualberta.ca/~elliott/e...s/oscillators/