About

Gender

Male


About Me:

Airplane modeller since 1982. Relatively new to electronicly assisted flights. But..... very fascinating.


Please tell us a bit about your UAV interest

Just had one quad that left me (flew off into the bushes). My own fault. Building a new one now and will be more careful.


Hometown:

Drammen


Activity Feed

Ragnar Myhre replied to MBerry's discussion APM 3.1 and all flight modes unknown? in ArduCopter User Group
"I had the same problem. It's a Mission Planner problem; not the APM. I downloaded the mission planner several times and reinstalled, but no luck.
Then I uninstalled MP and deleted all the files in the MP directory (C:\Program Files (x86)\Mission…"
Dec 30, 2015
Ragnar Myhre replied to Nicholas Witham's discussion Pixhawk-lite vs PX4mini vs pixfalcon
"I bought my Pixfalcon from HK. But I have placed many other orders at Banggood. I have nothing negative to say about them. Just waiting for the "Golden" Pixhawk mini and some other stuff from them now"
Dec 9, 2015
Ragnar Myhre replied to Nicholas Witham's discussion Pixhawk-lite vs PX4mini vs pixfalcon
"I wouldn't say "very very". It cost $ 89,99 at Banggood and others.
I'm compiling a comparison sheet. Not quite finished yet, so contributions are welcome. I have just installed the Pixfalcon (from HK) in a 250 size quad and so far it seems to…"
Dec 7, 2015
Ragnar Myhre replied to MBerry's discussion APM 3.1 and all flight modes unknown? in ArduCopter User Group
"Yes. Definitely a Mission Planner problem. I have installed MP on 3 different (all Windows 7) computers and tried different versions. At the moment, I'm running v. 1.3.16 on two of them. One is working perfect. On the other, several of the forms are…"
Dec 7, 2015
Ragnar Myhre replied to Wayne's discussion APM 2.5 works with usb not lipo.
"Hi Cris and sorry for late reply.
You just use a voltmeter. Connect the minus probe somewhere and measure the voltage on both sides of D1. The voltage should be fairly the same on both sides (a little lower on the output side of the diode). I think…"
Feb 26, 2015
Ragnar Myhre replied to Wayne's discussion APM 2.5 works with usb not lipo.
"Hi.
Yes, I'm sure. In my case it was D1. Actually, this has happened twice for me on the same APM (don't know why).
In your case it's obvious that the power module is fried."
Feb 26, 2015
Ragnar Myhre replied to Shane Hopcroft's discussion MiniAPM v3.1
"The connectors are Molex Picoblade. It's a little different from Hirose DF13. "
Jan 15, 2015
Ragnar Myhre replied to Terry's discussion Motors arm and spin but won't spin up
"I've had nothing but problems with several APMs and now the last one was the same as yours. And when I looked at the "Throttle Max" parameter, it was set to 80. I increased it to 1000 as suggested in the menu, but the motors are still only spinning…"
Jan 6, 2015
Ragnar Myhre replied to Liban O's discussion Quadcopter flips on liftoff
"I had a similar problem with my hex. It tilted over when I tried to lift it. If I did the "bold jump" as Mike says, it would lift off, but oscillate quite a bit.
I solved the problem by lowering the Stabilize Roll/Pitch quite a lot."
Dec 12, 2014
Ragnar Myhre replied to Ragnar Myhre's discussion Crash caused by battery failsafe problem?
"I'm sure I had no loose props as they are fixed with a 3 hole mount.
Embarassed to say that I have not checked the Low Voltage Cutoff on my ESC. However, I'm using the HobbyWing Platinum Pro 30A ESCs. The factory default for these are "Middle" and I…"
Nov 30, 2014
Ragnar Myhre replied to Ragnar Myhre's discussion Crash caused by battery failsafe problem?
"Very interesting that you have the same problem. I have experienced the same "lean over and crash" before also, but then I was even less experienced and did not look at the log.
As I mentioned in my first post, I saw the arm LED blinking just before…"
Nov 30, 2014
Ragnar Myhre replied to Ragnar Myhre's discussion Crash caused by battery failsafe problem?
"You can say that again! This is also my experience. The FrSky telemetry however, does a perfect job."
Nov 28, 2014
Ragnar Myhre replied to Ragnar Myhre's discussion Crash caused by battery failsafe problem?
"I was outside and I also waited until I had a GPS lock before arming. So I don't think that's the problem.
How have you set up your voltage alarm?"
Nov 28, 2014
Ragnar Myhre replied to Ragnar Myhre's discussion Crash caused by battery failsafe problem?
"Thanks for your answer. However, it does not answer my questions.
I have the Taranis TX, X8R RX and the FLVSS LiPo sensor. This works like a dream and I can sett alarms at any level I want.
However, initially I wanted to use the functions in the APM…"
Nov 28, 2014
Ragnar Myhre posted a discussion
I have been struggling with getting meaningful warnings about low battery. Thus, I have installed a small panel with 3 LEDs; one for arming connected to pin A7, one for GPS connected to A6 and the third for low battery connected to A5 (I wanted to…
Nov 27, 2014
Ragnar Myhre commented on Sandro Benigno's blog post ArduCAM OSD v2.0 - Update your MinimOSD!
"Where is the firmware? The zip-file in the arducam-osd download area doesn't contain any hex file."
Sep 18, 2014
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