I want to develop a module in which i have to operate 32 relays.
1. Controller ----->Shift Register------>ULN2003------> Relay

but i don't want to use shift register. Can some one suggest me alternate for this. Controller input is DMX-512

 

So this is a slave device you are building?

What is the DMX-512 specific signal format that will control the relays?

 

building the controller

 

So I changed my question.
This sounds like a slave device, not a controller?

 

Controller i will get DMX-512 input signal depends on the signal i have to turn on-off relays for that one thing how we can achieve is using shift register and relay drivers but i don't want to use shift register in place of that is there any module which i can use for relay triggering by using less(up to 10) I/0 pins of controllers

 

Are you still working on this? There are several ways of addressing 32 relays, but it would really help if you could tell us what you're doing - for example, is one relay used at a time? Switch it on, switch it off, then use a different relay? If so, you could use a couple of demultiplexer chips - 5 inputs, 32 outputs. You will probably need a transistor to drive each relay. What resistance are their coils, and what voltage? You seem reluctant to say what the project is - but it would to know, help if you want a useful answer.

 

Are you looking for 32 individual addressable latching outputs ?

One chip design in PSOC could be used. You could also contemplate putting
a DMX512 controller solution, also inside same chip.

Note resources mostly unused, see right hand window.




Regards, Dana.

 

Are you still working on this? There are several ways of addressing 32 relays, but it would really help if you could tell us what you're doing - for example, is one relay used at a time? Switch it on, switch it off, then use a different relay? If so, you could use a couple of demultiplexer chips - 5 inputs, 32 outputs. You will probably need a transistor to drive each relay. What resistance are their coils, and what voltage? You seem reluctant to say what the project is - but it would to know, help if you want a useful answer.

I got the solution...thanks for your reply