This project uses the on-board microphone of the Circuit Playground Express's to trigger a pair of servo actuated costume ears to perk up when there is a loud noise. The ears are mounted on a hair band and the whole thing is completely self-contained.
This project uses a Circuit Playground Express, 2 servos, and a LiPo battery. Any size battery can be used, but the 1200 mAh model is a good balance between size and lifespan.
Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and...
$24.95
In Stock
Tiny little servo can rotate approximately 180 degrees (90 in each direction) and works just like the standard kinds you're used to but smaller. You can use any servo...
$5.95
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Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This...
$9.95
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When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These...
$3.95
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Supplies
- Headband
- Construction paper
- Corrugated cardboard
- Hot glue and glue gun
- 2 rubber bands of an appropriate size
- Felt, faux fur, or fabric as desired to cover the ears
- Jumper wire with male pins if you want to solder to the CPX for a more robust connection
- flexible/stranded wire to use as an actuator
- 4 pieces of stiff wire (long male header pins work well) and wire to mechanically connect the servo
