Comments on: Modded iPod Nano Bot Dances to Its Own Music

By: Jennifer Welsh

Jennifer Welsh — Fri, 24 Sep 2010 21:57:47 +0000

Hi dear readers,

Thanks for commenting. MT-LA, thanks for the info. I don’t have much of a background in electronics or robotics, so I could always use a little lesson.

Linda, If you like this you should check out one of PachimonDotCom’s older videos which is kind of adorabuhls. http://www.youtube.com/watch?v=29wQ66_1ybo

Thanks for reading and commenting, everyone!

By: Linda

Linda — Fri, 24 Sep 2010 19:12:14 +0000

This is sooo cool. If only I could buy one of these. I want my ipod to be able to walk

By: MT-LA

MT-LA — Fri, 24 Sep 2010 16:59:20 +0000

Slight nit-pick:
“…he used the signal from the headphone jack as a pulse-width modification signal, which means it can tell the battery to provide intermediate amounts of power between a fully on and a fully off state.”

A pulse width modulated (PWM) signal is always either fully on or fully off. It just alternates between on and off very fast. The battery never provides an intermediate amount of power. The duty cycle of the power can be anywhere between 0 and 100%, but the power level itself is either 0 or 100%.