About

Gender

Male


Location

Los Gatos, CA


About Me:

I build autopilots for sailing craft. My interest is in the techniques experimented with here for application in multi day long distance sailing where control autonomy is necessary during sleep periods.


Activity Feed

brian commented on Chris Anderson's blog post New Hampshire considering aerial photography ban
"I don't believe this is constitutional. We had a similar attempt in California. It was driven by a case where a wealthy individual flew the entire Ca. coast with a helicopter equipped with high res cameras and GPS to capture position. The library of…"
Mar 1, 2013
brian replied to Scott Berfield's discussion Adjusting PIDs for extra weight
"My experience with two dimensional control systems would indicate that you would have to lower the gain on your settings, lower the P setting for less feedback. "
Oct 22, 2012
brian posted a discussion
 Hi All, After reading code and a few forum entries there are several questions that I have regarding the APM code. Can the PID parameters be reset in real time or is this purely a compiler time option, hence requiring a down load and reset ? Are…
Mar 20, 2011
brian posted a discussion
Hello All, I am looking for the low level drivers that talk directly to the digital IO for driving the servos. I see references to the drivers in the APM code modules: servo_out[CH_ROLL]      = reverse_roll   *…
Mar 7, 2011