Ground Loop's Discussions (11)

Sort by

Wind Damping for Barometer?

I've noticed that the Arducopter holds much more stable altitudes in steady air than it does in wind.

 

On breezy days, the Arducopter will climb/fall spontaneously while in GPS Hold.  In still air, it holds much better.

 

Should I be wrapping the barome

Read more…

Potentially fatal bug in Arducopter?

My Arducopter RC2 turned off all four motors at about 100' up today, and plunged to its death with no rotors spinning.

 

I believe there is a software bug or misguided feature at the root of it.

 

I was using GPS Hold to pin position, and the Arducopter

Read more…

MediaTek MTK GPS and "position pinning"

I've been recording the NMEA output from a MediaTek MT3329 GPS with the DIYDrones firmware, and I noticed that it seems 'pinned' when in a stationary position.

Most GPS receivers wander around as the many small errors in GPS cause some natural drift i

Read more…

init_gps() called only for EM406?

I'm going through the ArduIMU code to enable an MTK GPS, and I noticed this odd part of setup():
 
 //Setup EM406 for SIRF binary mode at 38400bit/s
  #if GPS_PROTOCOL == 2
    init_gps();
  #endif

This would imply that only the EM406 GPS configuration ca

Read more…

MTK GPS stuck in NMEA mode?

I'm setting up a new ArduPilot+ArduIMU for the first time.

I have the DIYDronesMediaTek MT3329 GPS, and my understanding was that it already has the custom firmware for MTK binary protocol.

When I build the arduimu code (version 1.7), it only works if

Read more…