OhYeahThatGuy81

You will need to use an external interrupt + hardware (or software, if you prefer) button debounce. Take a look at the attachInterrupt method.

Hello.... is anyone there?Shutting down...

Awesome job, dude, for using the classic 555 IC as an "out-of-the-box" solution for the Useless Machine. You got my vote!

I just love watching these videos. Not only are they highly informative, but relaxing as well.

Hmmm...Is the circuit rated for 12V, or for 6V?I have a feeling that those LEDs are going to burn up after being exposed at a higher-than-rated voltage.

I have to say, this 'ible got me grinning from step 1!

Brilliant. This is something which I wanted to pursue earlier, but never got around to it.

Not exactly an H-bridge if there aren't any transistors...

Does this support keyboards for other languages, such as German?