http://disqus.com/by/Andrew_Barton/enSat, 29 Aug 2015 19:47:29 -0000http://localhost:8888/projects/make-34/smartphone-servo/#comment-2225480338<p>I tried this project using a Moto X Android phone but I couldn't make the servo turn. My multi-meter showed an AC voltage of only around 0.2V, thus not reaching the 0.6V specified in the post. Thus no big surprise.</p><p>However, I did a bit more experimenting and managed to make this circuit work by powering the control signal from my MacBook Air laptop (and using the AudioTest software to generate the 50Hz pulse). Interestingly the circuit didn't work at first, but it did work after I removed the 0.1 microF capacitor and connected the control signal directly into the servo connector. Can you explain what exactly the capacitor is supposed to do in this circuit?</p><p>See photos of my parts and video of my setup working here: <a href="https://goo.gl/photos/Qzyg9szNZCGgRtNY8" rel="nofollow noopener" target="_blank" title="https://goo.gl/photos/Qzyg9szNZCGgRtNY8">https://goo.gl/photos/Qzyg9...</a></p><p>NB. The video shows me playing a series of audio files with different pulse width 5% thru 10% (1ms through 2ms). The servo seems to turn about 90 degrees for this range of pulse widths.</p>Andrew BartonSat, 29 Aug 2015 19:47:29 -0000http://www.googlelunarxprize.org/lunar/teams/white-label-space/blog/what-is-white-label-space#comment-9323627<p>Hi Phil,</p><p>This blog article I just posted goes some way towards answering your question..</p><p><a href="http://www.googlelunarxprize.org/lunar/teams/white-label-space/blog/preliminary-landing-site-considerations" rel="nofollow noopener" target="_blank" title="http://www.googlelunarxprize.org/lunar/teams/white-label-space/blog/preliminary-landing-site-considerations">http://www.googlelunarxpriz...</a></p>Andrew BartonThu, 14 May 2009 08:40:42 -0000