L.E.D Big Dipper



The L.E.D. Big Dipper was designed as an introduction to electric circuits. This circuit includes a resistor, L.E.D. and switch.  It demonstrates breaking a circuit and resistance.  It provides practice with wiring circuits because there are about  20 connections. This creates an electric, artistic display of the Big Dipper.              

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1:

Tools and Materials

1. 6 mm foam
2.7 5 mm L.E.D.
3. Telephone wire
4. Duck tape
5. Slide switch
6. Hot glue
7. 9 volt battery
8. 9 volt battery snap
9. Velcro
10. Wirer stripers/ cutters
11. 470 ohm resistor 

Step 2:

Cut the foam to  5 '' by 3 1/2 '' sheets.

Step 3:

Tape the template on the foam and drill 3/64" holes on the dots.

Step 4:

Bend the short LED legs.

Step 5:

 Wrap the resistor around the black battery clip wire.

Step 6:

Push the LEDs in to the holes in the foam board.

Step 7:

Wire both legs of the first LED to the second LED and test.

Step 8:

 Repeat until the last LED and bend the long legs in the opposite direction.

Step 9:

 Wrap the red wire around the seventh long LED leg.

Step 10:

Wrap the resistor around one switch post and another wire around the other then compress each wire bunch.

Step 11:

Cover all the legs with tape.

Step 12:

Put Velcro on the side of the battery shown.

Step 13:

 Hot glue the switch to the back.

Step 14:

Attach the battery clip.

Make It Real Challenge

Participated in the
Make It Real Challenge

Education Contest

Participated in the
Education Contest

Be the First to Share


    • CNC Contest

      CNC Contest
    • Make it Move

      Make it Move
    • Teacher Contest

      Teacher Contest