About

Location

Sunnyvale, CA


Please tell us a bit about your UAV interest

I research UAVs


Hometown:

Sunnyvale


Activity Feed

Ritchie Lee posted a discussion
Hello,How many serial ports are available to control external devices on the APM2.5?This is my best estimate so far:4 USARTS on the Atmega2560UART0 for wireless telemetry, also shared with usb serialUART1 for GPSUART2 may be used as alternative…
Jan 25, 2013
Ritchie Lee posted a discussion
Hello,I am doing some data analysis on Arduplane SIL flights and need the data in a time stamped and synchronized form (all data at 50Hz for example).  What is the best way to obtain this?The tlogs are one possibility, but the entries are not time…
Jan 2, 2013
Ritchie Lee replied to Ritchie Lee's discussion Problem running autotest.py
"It looks like these may be symptoms that the aircraft crashed during an earlier part of the test before it hits fly_mission.  Has anyone else tried running autotest.py recently? Are the parameters in ArduPlane.parm still valid?

Thanks,
Ritchie"
Dec 20, 2012
Ritchie Lee posted a discussion
Hello,I am having problems running autotest.py in Ubuntu.  I made two small modifications to get to my current state:In runsim.py, I changed the JSBSim expect to wait for "Test successful" instead of "trim computation time"In fgout.xml, I changed…
Dec 20, 2012