About

Gender

Male


Location

Irvine, CA


About Me:

Interesting in UAV


Hometown:

Irvine, CA


Activity Feed

David replied to Chris Anderson's discussion Discussion forum for UAVDevBoard, Sparkfun's 3-axis IMU-based autopilot board
"Hi, Bill:

If I want to modify the firmware in UAV board WITHOUT connecting RC receiver to the board, can I use ESC to power UAV board directly? I mean to connect +5V and GND of ESC to the VCC and GND on the board. I have a 3s Lipo battery (11.1V)…"
Aug 4, 2009
David replied to Chris Anderson's discussion Discussion forum for UAVDevBoard, Sparkfun's 3-axis IMU-based autopilot board
"Hi, Sid & Bill:

Thanks a lot for the correction. Really appreciate for the additional info. I'll try these connections.

Bill - you mentioned the instructions for the connection are in fw. Could you point out which file(s) I need to look at?

David"
Aug 3, 2009
David replied to Chris Anderson's discussion Discussion forum for UAVDevBoard, Sparkfun's 3-axis IMU-based autopilot board
"Bill & All:

I just brought UAV board, ICD2, GPS and some other parts from Sparkfun. I want to try this UAV board with my EZStar RC plane. My 1st question is how to the UAV board to the Receiver, the servos and the power. I read the manual…"
Aug 2, 2009
David commented on William Premerlani's blog post update: GentleNAV RTL firmware revision & IMU progress
"Bill,
How does the board (UAV v2 Dev) get the power during flight and in debugging with PC?

Thanks

David"
Jul 11, 2009
David left a comment for Shoaib Mohsin
"what's your question?"
Nov 25, 2008
David replied to David's discussion Brushless and ESC help
"Wayne:

Did you use RC Receiver/Transmitter to control GWS motor/ESC, or microprocessor to control ESC/Motor?

Best,
David"
Oct 22, 2008
David posted a discussion
I’m using a BP brushless motor and BP ESC with a 3S Lipo battery, and I use a microprocessor to generate a PWM signal (1ms – 2ms rate) for the ESC(with a BEC). The PWM generates 100% duty for the ESC, but the motor sometimes spins, and sometimese…
Oct 20, 2008
David posted a discussion
I had an ESC (BP30ESC), but I don't have any RC receiver and transmitter. I wonder if anyone knows how to program an ESC without using receiver/transmitter?I have microprocesor that outputs PWM singles and controls servos. When I output a 100% duty…
Sep 9, 2008