About

Gender

Male


Location

Moscow


Please tell us a bit about your UAV interest

Want to use copter for video-surveliance purposes


Hometown:

Moscow


Activity Feed

Max Turnoff commented on Janne Mäntyharju's blog post Lesson learned about 3DR ESCs and cold weather
"Hi THomas, yes I use this method when level is only slightly off. But when it's completely screwd I just can't bring quad up into the air. And this is what usually happens after cold landing. "
Jan 24, 2013
Max Turnoff commented on Janne Mäntyharju's blog post Lesson learned about 3DR ESCs and cold weather
"I fly in up to -15C in Russia with Hobbywing ESCs and it's going OK. But I have another problem with cold on my APM 2.5 quadcopter. As soon as it goes below +5C leveling gets completely screwd-up upon each landing. Soft landing into snow or hard…"
Jan 24, 2013
Max Turnoff posted a discussion
When I started using my APM2-based quad in sub-zero temperature (actually around +10C still) I have to re-level it almost after each landing, even the very soft landing. Maybe it's not the temperature, but I have to check something else?
Oct 17, 2012
Max Turnoff posted a discussion
I used this FTDI-USB antenna on old Windows XP unit and it worked well with MissionPlanner etc. However after switching to Windows 7 it gives bluescreen almost every time I remove my antenna from USB port. It seems to be using standard FTDI driver…
Oct 1, 2012
Max Turnoff replied to Max Turnoff's discussion DO_SET_SERVO - works?
"It seems nobody interested/tried using this feature. Weird, it seems to be useful for all kinds of external devices. Anyway the problem is that there is no initialization of channels 5-8 in the ArduCopter code. Looking at init_rc_out() there are…"
Sep 27, 2012
Max Turnoff replied to Anton Stuk's discussion APM 2.0 MTK GPS Noisy readings
"In my case jitter behaviour of  MTK doesn't depend on firmware version and mode. I've done clean experiment just walking around with armed quad and then analysed log files (2.6 and 2.7.1). I see ~3.5 Hz "stairs" in raw GPS readings. It's probably…"
Sep 1, 2012
Max Turnoff posted a discussion
I am trying DO_SET_SERVO in MavLink. It seems no signal on the output channel gets generated. I am attaching mission plan and graph of two successive missions. For the comparison I graph servo1 (motor) and servo5 (the one I am testing). servo5 stays…
Aug 27, 2012
Max Turnoff replied to John Hanson's discussion 2.7 Mission problems
"I had similar weird results on APM2 with 2.7.1:


My speed set to 2.1 m/s, and PIDs reduced as per advice here: NAV_LAT_D,0NAV_LAT_I,0.085NAV_LAT_IMAX,1800NAV_LAT_P,1.855NAV_LON_D,0NAV_LON_I,0.085NAV_LON_IMAX,1800NAV_LON_P,1.855
What else should I…"
Aug 25, 2012
Max Turnoff replied to Eddie Furey's discussion Creating a switch to set "home".
"So finally how the Home Location is set???  Since I had bad crash related to lack of this knowledge I looked inside the APM (ArduCopter 2.7) code. Just want to warn that ArduPlane code may have different logic. Here is the logic:


The way "good"…"
Aug 23, 2012
Max Turnoff replied to John Hanson's discussion 2.7 Mission problems
"Hi John,
I have similar problem and try investigating it. Found this line in Log.pde

    DataFlash.WriteInt(0);    // 7 (this used to be compass.heading)
So by some reason 2.7 won't log Mag Heading anymore. Wondering why.
But the reason for erratic…"
Aug 21, 2012
Max Turnoff posted a discussion
Both in Mission Planner (1.2.5) and in Google Earth (6.2.2.X) when playing tlog - kmz files there are no waypoints, just the trajectory. Is there way to get both trajectory and waypoints on one screen?
Aug 20, 2012
Max Turnoff commented on Jordi Muñoz's blog post Announcing APM 2.5!
"Was on-board flash logging bug fixed at 2.5? See discussion at http://diydrones.com/forum/topics/on-board-logging-problem-erase-br... . Now it's impossible to analyze on-board logs which renders APM 2 unusable if you try to go beyong simple flying.…"
Aug 20, 2012
Max Turnoff posted a discussion
Hello,I use APM 2.0 with 2.7 firmware. I noticed that log erase works strangely. In fact it doesn't work. I erased all files from CLI. Then powered on, armed and switched off after couple of seconds. Then downloaded new log file. It appeared  3+ Mb…
Aug 12, 2012
Max Turnoff replied to Dan Gray's discussion Version 1.3 of APMLogVisualizer.... With Nice Graphs.
"Hi Dan, I use 1.34, works great! Just one minor issue probably related to my regional settings. When clicking on trajectory area, the coordinates passed to Goggle Maps are with decimal commas, while should be with decimal dots.They are passed…"
Aug 3, 2012
Max Turnoff posted a discussion
On the Wiki page for Auto mode there is description of what should happen when Mission completes in air. It should switch to Loiter.However in my experience, upon completing mission, copter will switch to Stabilize mode and follow the throttle. If…
Jul 26, 2012
Max Turnoff posted a discussion
Hello,According with definition of MAV_CMD_NAV_WAYPOINT the second parameter is the Acceptance radius in meters (if the sphere with this radius is hit, the waypoint counts as reached).When I set WPRadius on flight-planner screen to 10, and save…
Jul 25, 2012