Can I do this with relays?
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=143976
Printed Date: May 02, 2024 at 11:49 PM
Topic: Can I do this with relays?
Posted By: magvl
Subject: Can I do this with relays?
Date Posted: January 02, 2018 at 6:13 AM
Hi guys, I have a set of traffic lights (red - amber - green) 12v globes and was wondering if I could use relays to run them through a sequence say 5secs on red and 5secs on amber and the same for the green.
What do you think?
Thanks in advance for any replies...
Replies:
Posted By: lmlisak
Date Posted: January 22, 2018 at 5:57 PM
I believe you would need some external components..
You can use a pair of 555 timers...
You can use a 555 with a IC4017...
the relays do not know how to "reverse" the sequence on their own...
Ive seen relays used for the sequencial turn signals... but not in reverse...
...sorry... have to use some "logic" circuitry..
lml
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xyzzy
Posted By: magvl
Date Posted: January 22, 2018 at 8:30 PM
Thanks for the reply lmlisak,
Ok time to re-think.
Cheers Mag..
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