DiscoverCircuits.com, has 40,000+ electronic circuits, cross-referenced
into 500+ categories. We have searched the web to help you find quick design ideas.
We make every effort to link to original material posted by the designer. Please let us if you would like us to link to or post your design.
Sound Activated Toy - This circuit makes a flower bop to the beat of music.
The flower stem contains a crooked wire which is spun by the motor. The circuit is
a microphone driven peak-detecting one-shot and works very well. The microphone is
in a sponge mount to insulate it from the vibration of the running motor. Similar
circuits are used to drive rock'n coke cans (added 6/06)
The Millipede - Me and a friend are both trying to build a millipede. Because
of obvious reasons, the millipede is NOT going to have 1000 feet!!! Instead, it's
going to have 16 pager motors as feet. It will also have 3 MicroMotors to ''bend''
towards light, and a backup sensor.….(electronic schematic added 08/08)
VCR Ping Pong Game - Here is a fascinating and nostalgic project that kept me
up many, many nights last summer (creating it, not playing the game!). I had long
thought it would be exciting to try to generate video from a PIC, and with
built-in A/D converters available for the paddles, the game of Pong seemed an
obvious application to prove the concept.The most amazing thing about this project
is the small number of parts. My boss joked that it involves 17 cents worth of
parts....(electronic circuit added 4/05)
Yo-Yo Device - At about $1.08 each in small quantities, the PIC12F629 is just
begging to be used in small and strange projects. The original yoyo was equiped
with 2 LEDs that lit up when the device was spinning. I decided to add a
micro to give it some extra pazazz.….(circuit design added 08/08)
Copyright January, 1998 - November, 2017 David A. Johnson & Associates. All Rights reserved. Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.
