More ideas from klaus
Build your own underwater ROV from scratch

I am very lucky to live in a coastal town and during summer, I regularly go snorkeling near rocky creeks to admire fish, sea stars and corals.

Awesome and somewhat simple to make watch. Requires arduino.

The Nerd Watch displays the time in binary when the button is pushed. The watch shows the hour and minutes by flashing two LEDs in sequence to represent two binary numbers (in big-endian format).

Destroy Any Device With EMP Jammer

Imagine that you have powers to stop any electronic device, is it only possible in movies?well here's the way to make an emp jammer (Electromagnetic pulse.

Image titled Make Your Own Cell Phone Jammer Step 5

How to Make Your Own Cell Phone Jammer. Cell phone jammers are installed in no disturbance zones such as schools or colleges. But how exactly does this instrument jam cell phones? These jamming instruments prevent mobiles from receiving.

Underwater ROV

This instructable will show you the process of building a fully functional ROV capable of or more. I built this ROV with the help of my dad and several other.