Hi!

Please help me as I am trying this project from more than a month

I am a newbie
But I know basics

I have 160 leds with a power supply of 5v

I want to glow each of them after a delay of 0.00625 second

In this way all of them can glow in 1 second (0.00625 * 160 = 1 sec)

it should look like a running light

Please help !!!!!!!!!!!!!!!

Regards

 

would u like to use a microcontroller or just simple components cuz if u r going to use simple components ur going to have a hell of a circuit its going to be very large while if u use a microcontroller it will be much easier but u need some microcontrolling basics

 

Could u give me both the options please

 

you can use this one http://delabs-circuits.com/cirdir/theory/gates/doc00020.html
but increase the decade counter or get a larger one

 

I actually want is this way

Please follow the link : http://www.dwcreators.com/circuits/led.gif

 

And if please u can tell me the option with simple components

 

so u need a 160 bit counter :| thats alot man cant u reduce the 160 leds a bit

mmmmm....

anyways to make this circuit using simple components u would need to use the 555 oscilator as a timer to time the pulses and use a shift register which shifts 1 so for example if it is 4 bits the first code will be 0000 then shift right 1 after the first clk so it will become 1000 then shift another 1 after the second clk so it will become 1100 and so on so u need to search for the highest shift register u can get, for this u would need a SIPO shift register and put 1 in the serial input

 

Sorry I am not that savvy

Please help me with simple components

Can u let me one thing that if we use a capacitor
which charges fully in a second
and as it charges something which we trigger at specific interval
as the voltage increases something like that, you can better suggest

Please use, Very basic components

Regards

 

does that mean you dont want to use any ICs ????

 

ya correct!

 

OMG !!!!!!!!! :| :| thats nearly imposible you need to use ICs man at least for the timing part its impossible to design a ckt like that using only resistors and caps

 

Cant use resistor capacitor transistor and

RC filter circuit

 

deadly hard and wont be acurrat

 

Can u tell me how to put a led on once the capacitor is fully charged?

 

you will need to use a comparator which is an IC as well :S to compare the capacitor voltage if it is fully charged or not

 

cant u use any IC's at all??? not even 1 ?????????

 

cant we use rc filter circuit to trigger at one certain point of voltage

 

I am not savvy to start with any ic

I would like to know how to do it without IC

I want to know how the current flows from one part of the circuit to other

IC does solves that

creating a delay circuit without IC is also possible

 

sorry IC doesn let u know how the current passes

as it is all integrated

making a circuit with all basic and simple components lets to know how it flows

 

u need a comparator to give u the trigger u need when the capacitor is fully charged other than that i cant think of a way to give u a pulse when the capacitor is fully charged