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Light-Up Star Maps with LEDs

Clever Engineering, Tech Wizardry

overview

this is definitely a CJ fave and a very cool way to add personality to your room! working with LEDs is simple and shock-free. once you get the hang of circuitry, you can apply it in so many ways.

30 minutes

maker checklist

  • foam core board
  • fabric in fun pattern
  • coin battery holder with switch
  • coin batteries
  • LEDs (5mm-10mm)
  • ball-head pin
  • scissors and masking tape
  • copper tape or hook-up wire

instructions

1

cut your foam board to size and lay it on your fabric.

2

cut your fabric to size to match your board, leaving an inch around all sides so you can wrap it around the edges. snip the corners for a smoother wrap.

3

wrap the board with the fabric and secure on the back using double-stick tape to hold in place and masking tape to seal the edges down.

4

flip the board over to the front and choose the placement for your LEDs. use one to three LEDs for best results!

5

pierce holes through the fabric and board, using a ball-head pin, so that you can fit the legs of the LED through the foam core.

6

insert the LEDs from the front, and, on the back, bend the legs down to hold in place.

7

place the battery holder on the back of
the board and secure in place with glue or double-stick foam tape. make sure the switch is *off* and insert the batteries.

8

connect the anode (+) leg of the LED
to the positive lead of the battery holder (the red wire). connect the cathode (-) leg to the negative lead (the black wire). use copper tape to create the circuit.
important! the copper tape pathways must not cross, and they must be tight and secure.

9

turn the switch on and see your board light up!