Quick LED Pumpkin - Batman Symbol

Introduction: Quick LED Pumpkin - Batman Symbol

This guide will show you to create a batman pumpkin illuminated by LEDs in a small form factor.

Gather items:

CR2032 Lithium 3V batteries
10-ohm resistor
Electrical Tape

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:

Carve the pumpkin with any design.  I chose a Batman Symbol.

Make sure to use a current limiting resistor so you do not burn out the LEDS.  Calculate the resistor value using ohm's law V=IR, mine turned out to be an 8.7 ohm resistor to get about 24mA of current (max for these super-bright LEDs).

Solder the negative contacts of the LEDs to a small resistor.

Wrap the positive contacts of the LEDs to the positive lead of the battery with electrical tape.  Bend the resistor and LEDs such that the LEDs point radially outward, and the resistor can be tucked under the electrical tape (creating a removable switch to turn off the LEDs).

Halloween Decorations Contest

Participated in the
Halloween Decorations Contest

Make It Glow

Participated in the
Make It Glow

Be the First to Share


    • Toys and Games Challenge

      Toys and Games Challenge
    • Backyard Contest

      Backyard Contest
    • Silly Hats Speed Challenge

      Silly Hats Speed Challenge

    2 Discussions