Continue to Site

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.

Register Log in

please help me with a design problem

Status
Not open for further replies.
B

bogie25

Newbie level 4
Joined
Mar 18, 2006
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,321
Hi

I need to design a system that will monitor 6 doors(switches) and indicate the door number on a 7 segment.

I must use a mux, a demux and a counter +clock

see atachment
 

Agreed, the diagram you've attached solves the problem. There's nothing to design here except details (choosing components and connecting pins properly).

-jonathan
 

ok I can see that the dificulty here is do design it

can someone help me design it on the electronic workbench?
 

Look at

https://focus.ti.com/lit/ug/scyd013b/scyd013b.pdf

The functional blocks in your picture are all single chip implementations. You need a 8 to 1 mux/encoder, a 3 to 8 demux/decoder, a binary counter, a 555 timer to generate the clock and a bunch of diodes and resistors to connect the seven segment display to the output of the decoder.

-jonathan
 

thank jonathan

I did connect as you said but nothing comes out from the 7 segments.

and why do i need the 555 timer. I can use a clock signal generator in the electronics workbench connected directly to the counter.

where do I connect the diodes?

thank for the help
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top