Picture of LED exit sign
I was browsing on allelectronics.com and saw an exit sign on sale..... $3.00. I found that offer irresistible.

Now, for the instructions this is all about......

Note: This was made after this was built so excuse the average photos and steps.

Step 1: Materials and tools needed

Picture of Materials and tools needed

1.) A light-up exit sign
2.) 4 red 5mm LED's
3.) Small PC bread board
4.) 9v battery clip
5.) 9v battery
6.) ON-OFF switch
7.) Wires( I got mine from CAT- 5 cables)
8.) Resistor (unknown type)


1.) Soldering iron
2.) Solder
3.) Screwdriver and pliers
tinker2344 years ago
wow i have one of those at my home got them out of the dump
AndyGadget4 years ago
(You've forgotten to put the battery in the schematic #;¬)
Cool! Just some pointers on using PCBs: The little copper bits around the holes are meant to be used to solder onto (see pic). This provides a cleaner, sturdier finished product. Besides that, this is a nice project!
ry25920 (author)  Radioactive_Legos6 years ago
I understand what you mean, that's what I tried to do. I just little new to soldering.
I think you were soldering on the wrong side of the board.
IT would have worked like the picture posted by radioactive_legos if you just flipped it around.
Ive used the same type of board, it doesn't have the copper rings it was just blank on both sides. They work fine just a lot cheaper than the copper hole ones.
OOOOOOOOHHH really? Nice. Well I love the project either way "P
twist2b6 years ago
Hey, so you can "fuel" this with AC (plug it in) and it will last forever.... its VERY simple..... would you mid adding it as an option???


Very simple.... lasts forever :)
ry25920 (author)  twist2b6 years ago
This sign had the AC inputs and bulbs built in. I just wanted battery power. ry25920