I want to make a simple circuit for my lover, so I come up with using four 7-segment LEDs to make the word “L O V E” for her.
List of materials:
1. Four 7-segment LEDs
2. Resistors
3. A wooden prototype board
4. USB cable cord
5. Solder iron
6. Paper Clip
7. A plastic box
8. Red papers
Step 1 – Paint the wooden prototype board in White.
Step 2 – Put the 7 segment LEDs on the board
Step 3 – Solder!
Simply connect the “ON” segment pins to +5V and ground each of segment.
For detail, please check out this website: 7 Segment LEDs
I break the paper clips into three wires and organize them into three parallel lines to ease of soldering. You will see how simple it is. Finally cut of the usb cable and use only the +5v and GND lines. I didn’t have the many resistors around, so I put few of them and test the brightness. You can find the best resistor value yourself.
Step 4 – Power up by USB
Step 5 – Packing it
In order to make it nice enough to put near her computer desk, I put the board into the circular plastic box and put some red papers to it. Hah..looks like a LOVE bomb 
I spent about 2 hours at mid-night to do this project, it is really simple and fun:)
What kind of box and paper did you use?
Really nice, someday i’ll do something like that.
Simple, fun and lovely <3
Hi Nick,
The box and paper are bought from gift wrapping shops, you can find many other plastic boxes and colour paper there.
Who is Loue?
Thanks for the info. I am going to build this for my Girl friend for Valentine’s Day.
Hi Nick,
One thing is that a “White” prototype board really rock. So remember to paint it in white.
Great Idea, odered a bunch of 7 segment LEDs plan on making a couple of these as christmas gifts. But with names instead of Love.
Hey there,
I made one of these, more or less, I had bigger 7-segs. I’m having a problem with the heat of my resistors, I ended up getting a 3 watt instead of the standard 1/4 watt cheapies, at 2.2 Ohms I get perfect brightness, but the resistor is burning hot, it was even worse so on the 1/4 watt ones.
Any recommendations?
[...] http://kaasxxx.wordpress.com/2007/12/11/2-hours-love-project/ Quelle: Kaas Logg Book [...]
Neat project!!
thats amazing
Hello!
Very Interesting post! Thank you for such interesting resource!
PS: Sorry for my bad english, I’v just started to learn this language
See you!
Your, Raiul Baztepo
Hello !
My name is Piter Kokoniz. oOnly want to tell, that your posts are really interesting
And want to ask you: what was the reasson for you to start this blog?
Sorry for my bad english:)
Thank you!
Piter Kokoniz, from Latvia
Hi Piter,
Thanks for visting.
I write this site to share my projects and showing that electronics can be useful and also looking good:) Hope you enjoy this.
Btw, I have moved this site to http://bitartist.org/ which is blog started by my friend bitartist. So you can take a look @ it.