This fun and easy to make desk toy was inspired by the Hypnotoad from the TV series FuturamaThe Marvelous LED HynoFrog uses slow color changing LEDs to create a mesmerizing effect.  The Marvelous LED HypnoFrog employs a magnetic reed switch to turn it on and off: when the frog is placed on top of a magnet, the eyes will illuminate and start changing colors; when removed it will stop.

Step 1: Parts List

The following parts are needed to make The Marvelous LED HypnoFrog:

Hollow soft rubber toy frog (the one I used was a Toysmith "Frog Squirter" that cost $3 at a local toy store)

  1. Two slow color changing LEDs (available from eBay. I got mine from eBay seller "bestshop2008hk")
  2. Normally open magnetic reed switch (I obtained mine from Jameco Electronics. The switches are part number 171872 and cost $0.85 each)
  3. 560 ohm 1/2 watt resistor (available from RadioShack or other electronics suppliers)
  4. 9 volt battery clip (available from RadioShack or other electronics suppliers)
  5. 9 volt battery
  6. Red and black very flexible thin wire (6" each)
  7. Black electrical tape
  8. Heat shrink tubing (optional)
  1. Soldering iron and solder
  2. Wire cutters / wire strippers
  3. Box cutter or Xacto knife
  4. Awl or other sharp point tool

This instructable is-HYPNO TOAD IS ALMIGHTY!
Oh hey guys hows this instruc- ALL GLORY TO THE HYPNOFROG
hey just a suggestion, but maybe for the next one, leave the eyes closed and hot glue the LED in the little pocket they make, so it diffuses the light?
its like a surgery lol...."i will now make a 1mm incision in the frogs abdomen so i may insert a 9volt battery" [add awesome british accent]
<br> I really like this.<br> &quot;<a href="http://www.youtube.com/watch?v=kiVYjRbZMe0&feature=related">All glory to the Hypno-toad!</a>&quot;<br> <br> L<br>
They show Futurama in the UK?
<br> Worldwide.<br> <br> L<br>
Damn, you beat me to it.
The only way this could be cooler is with a small speaker that plays the Hypno-toad sound effect...then broadcasts itself on public television and destroys all other television shows. <br><br>All glory to the Hypno-toad!<br><br>P.S. The cake is a lie
you beat me to it
dude i believe its hypno toad from futurama.
Dude, I'm pretty sure that's what he's riffing off of. This here is a frog.

About This Instructable




More by talk2bruce:Raspberry Pi Internet Monitor Laser Cut Raspberry Pi LCD Case Raspberry Pi Motion Sensitive Camera 
Add instructable to: