Intro: 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
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
3.) Screwdriver and pliers
Step 2: Opening the Sign
After you have your sign, you need to open it. This can be easy or difficult depending on the sign you have.
Step 3: Creating the Circuit
This circuit can be different depending on how you want to wire it, but this is what I used;
I set up a pretty simple LED, resistor, and switch series circuit. To make this, you solder the the 4 LED's together. Make sure to test the LED's and check polarity before soldering.
Note: the resistor can be different depending on what you have.
This is the schematic.
Step 4: Assembly Part 1
To assemble this, you first need to find or make a hole for the switch. This can be done with a drill, or another tool of preference. I didn't require this because mine came with a pre-made hole for mounting. It turned out that it's the same size as my switch. After adding the switch, continue to the next step.
Step 5: Assembly Part 2
Now you need to install the board. I used electrical tape to attach it to the back panel. You could use hot glue, glue, or another type of tape or adhesive.
After attaching the circuit with a preferred method, Connect the battery and switch if you haven't already.
Step 6: Finally
Test the circuit and close up the sign.
You now have your own personal exit sign for your room, your dorm, or any other anything else.
If you have any comments or questions, I'll be glad to answer.