Who doesn't enjoy receiving a greeting card?  Birthday cards, Get Well cards, Just Sayin' Hello cards... they can all put a smile on the recipient's face.  
 
The greeting cards we created on Saturday at the DIY: LED Greeting Cards program must've put a huge, toothy smile on some special recipient's face then.  We used Bare Paint conductive ink, a battery, LEDs, and some knowledge of circuitry to create greeting cards that light up!
 
Missed the program or need a re-cap?  You can find the instructions on how to create your own LED Greeting Cards below, or, you can purchase a kit from sparkfun.com
 
1. Use the robot templates that come with the kit or create your own design on a blank paper.
2. Cut off a small strip of paper. This will be used for the “switch” later on.
3. Use the push pin to punch holes for the battery and LED prongs.
4. Trace the black lines on the templates (if using the robot drawings) with the Bare Paint pen.
5. WAIT FOR THE INK TO DRY!!!!
6. Place the battery into one of the pairs of holes and the LED into the other. Flatten them out at a 90 degree angle.
7. Make sure that the legs match, long LED leg to long battery leg and the same for the short legs.
8. Remember that strip of paper from step 2?  We’re using it now.  Glue it to the spot shown in the picture. This is how the “circuit” will be completed.
9. Add a blob of ink to the switch and wait for it to dry.
10. To turn it on simply press the switch down to complete the circuit!
 
As always, if you have any questions on this program, feel free to drop by The Hub and ask one of our staff!
 
Wed, 07/02/2014 - 7:57pm