very urgent query arduino uno R3

Help me urgently on arduino uno r3

I am using shift register 595
Now I connect output pins of this shift registers to8 relays
Suppose I set relay on pin 1 of shift register to 1
And rest all 0
After this now I also want to start relay on pin 3
So I feed 10100000

Now my question is when I trigger latch in round 2 to feed above value I.e. 10100000, will my relay on pin 1 flicker I.e become 0 and then back to 1 again?

Now my question is when I trigger latch in round 2 to feed above value I.e. 10100000, will my relay on pin 1 flicker I.e become 0 and then back to 1 again?

Do it and see what happens.

Quick question, are you powering the relays from the arduino or an external power supply? Are you also using transistors to trigger the relays once you get a signal from the S.R. ?

Thanks sir for your help
I wish to power them using arduino.
I have not yet done it practically.
As I am from computers background I Dont know much about this
Please correct me where ever required
Thanks

I wish to power them using arduino.

You can trigger them using the arduino to control the shift registers, but you will also need feedback diodes and transistors (if you are making this from scratch), but most of all you WILL need an external power supply that can supply enough current to power all 8 relays.

Do you have anything at the moment? Relays, relays boards, the shift register, an Arduino or anything at all?

No
I Dont have them now
I will buy them shortly
:slight_smile:

I Dont have them now
I will buy them shortly

Very urgent indeed!