Electrical Project for Display... I'm new to this :)


Old 05-09-14, 08:11 AM
Thread Starter
Join Date: May 2014
Location: USA
Posts: 1
Received 0 Votes on 0 Posts
Electrical Project for Display... I'm new to this :)

Good morning!
Long story short: Trying to make two 12V LED Marker Lights Blink on/off. (3 Sec Intervals +/-)

I have a trade show I'm attending next weekend and there is a project I've been trying to complete before then! With the help of employees from RadioShack and a local DIY electrical shop, I believe I have the components necessary to make this happen. With little to no electrical experience like this, any input would be greatly appreciated.

Components I have:
555 Timer
Set of misc resistors 1/4W K/RES-E3, 250V Max
SPDT 9VDC MINI RELAY (contacts rated at 12A at 120VAC/24VDC
Kit with misc jumpers
Electrolytic Capacitor, 1 OMFD 1000 NEH1.OM100AA
Potentiometer Mini/1000 OHM-TRIMMER NO.PC1K

I have looked up 555 timer circuits, but with 12V I am unsure how to connect the relay.
Attached Images   
Sponsored Links
Old 05-09-14, 07:15 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 56,435
Received 759 Votes on 713 Posts
Welcome to the forums.

The following diagram should work for you. I worked it up before I saw the lights you were using.

Name:  555.JPG
Views: 854
Size:  35.7 KB

Those lights are low draw and the 555 should be able to drive them with no relay.
(try this diagram first)
Name:  555alt.jpg
Views: 544
Size:  21.3 KB
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: