Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

How to link a delay circuit with a 32 LEDs sequencer circuit

Status
Not open for further replies.

kingofking

Junior Member level 2
Joined
Oct 18, 2006
Messages
20
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,415
Hello all,

I have done a 32 LEDs sequencer circuit, but it just keep on the sequence like for ever.

How can I link a delay circuit say for 2 second or so with my circuit. So that after the 32 LED light it the circuit goes off for 2 second.
 

ultrabrains

Full Member level 2
Joined
Feb 14, 2007
Messages
129
Helped
12
Reputation
24
Reaction score
3
Trophy points
1,298
Activity points
2,117
Delay circuit needed

i have uploaded a corected version to



so check it out.

The idea is that you calculate the time on for the 555 timer i added to the time it takes to scan through the LED sequence and the time off to be the delay u want.

If not cleared with any thing contact me.

cheers
 

    kingofking

    Points: 2
    Helpful Answer Positive Rating

kingofking

Junior Member level 2
Joined
Oct 18, 2006
Messages
20
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,415
Delay circuit needed

Hi ultrabrains thanks for the reply, could you plz uploade the pic to rapidshare or any other site, its not clear dear. Cheers
 

ultrabrains

Full Member level 2
Joined
Feb 14, 2007
Messages
129
Helped
12
Reputation
24
Reaction score
3
Trophy points
1,298
Activity points
2,117
Re: Delay circuit needed

sorry i do not have a rapid share account or any other. I plan creating one soon.

here is the file agian
 

    kingofking

    Points: 2
    Helpful Answer Positive Rating

ultrabrains

Full Member level 2
Joined
Feb 14, 2007
Messages
129
Helped
12
Reputation
24
Reaction score
3
Trophy points
1,298
Activity points
2,117
Delay circuit needed

as i earlier said i only added an astable multivibrator to control the reset pin of your circuit.

this principle is that reset pin of your astable multivibrator must be high(1) so making it low(0) gives the delay you want.

if i helped dont forget to click on helped
 

    kingofking

    Points: 2
    Helpful Answer Positive Rating

kingofking

Junior Member level 2
Joined
Oct 18, 2006
Messages
20
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,415
Delay circuit needed

Thanks ultrabrains u really rock man. Its working as I wanted it to be. Many thanks. Have put for u some points :) Have a pleasent weekend.
 

ultrabrains

Full Member level 2
Joined
Feb 14, 2007
Messages
129
Helped
12
Reputation
24
Reaction score
3
Trophy points
1,298
Activity points
2,117
Delay circuit needed

its my pleasure, am always happy to help. thanks for the pts.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top