Comments

• 

  Richard Kennedy April 14, 2015 at 4:06am

  @ Rodney Johnson

  I went through the same thing and have had great luck with the M8N. There has been a LOT of discussion about this and 3dr says it's not just the sat count but the trajectory information from the gps. Theory is it's far more sensitive [ that's why it see's more sats ] but that also make it prone to picking up interference. However I have one and seem to have no problem and other do as well. But I agree for $50 or so  it's really nice to see 10 sats in 1-2 minute! I've gotten 20 with a hdop of 1.1. Nice!
• 

  Rodney Johnson April 13, 2015 at 7:53pm

  Ublox Neo-M8N GPS with Compass.

  OK for what its worth, I have been waiting for 3DR to upgrade there GPS to the newer NeoM8N and it never happens. I have found that HOBBY KING has got it covered. I know,,, HOBBY KING right.

  Well I did a little bench testing today and this is what I found out. First off it is FAST,, no more did I power it up and it was giving me satellite information. The old 3DR Ublox 6 can't compare. Also this unit is plug and play and the best part is its only $48.00 USD plus shipping. But if it works its worth it.

  There is a review on this HK webpage at the bottom and also all the info. I plan on doing more testing before installing it on my hex camera ship but from what I have seen and read it will be good to go. I will be replacing all of my old 6's with 8's.,. Sorry 3DR, I know you have been working on the Solo but don't forget the PIXHAWK people.

  https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct...

     

  This is the 3DR ublox 6

   

  this is the HOBBYKING M8N

  
• 

  Artem April 2, 2015 at 6:35pm

  Question about current sensor resolution. I am building a high voltage 120A+ copter and looking for a suitable current sensor. I would like to try one of the hall effect sensors, but its resolution is 19mV per Amp. Is pixhawk sensitive enough for this? 
• Phil Horner April 1, 2015 at 11:57am

  Thanks Jim. Will do and I'll get back to you on the result.
• Phil Horner March 31, 2015 at 11:28pm

  Thank you very much for your input. If you think it's safe to do so, I'll fit a fully charged battery tomorrow and try again.
• 100KM

  Hein du Plessis March 31, 2015 at 11:17pm

  Yes you have battery failsafe set at 15v and your battery dropped to 15 which enganged RTL / LAND. During land no throttle inputs are considered, I think. I would disable battery failsafe completely and make sure I watch the battery while flying.
• Phil Horner March 31, 2015 at 10:53pm

  Thank you for that. As I mentioned I throttled back to try and land but the graph shows it didn't happen as it should. So you think that the failsafe took over the throttle just as I lowered the throttle and kept itself flying while it was organising itself for a landing? Did you see anything else on the log to cause concern or do you think I really need to grow a pair (LOL) and fit a fully charged battery and do it again?
• 100KM

  Hein du Plessis March 31, 2015 at 10:43pm

  @Phil I think you inadvertently engaged landing mode through a failsafe. See the log graph and the modes with your throttle input as yello and the throttle output as green.

  Hope it helps.
• Phil Horner March 31, 2015 at 9:36pm

  2015-04-01%2017-03-11.binHi all. Can someone please help?

  Week or so ago I had a flyaway due to a faulty Pixhawk. Long story short, I got it back, got a replacement and tried to do the maiden just now. Alarmingly the throttle would very slowly answer to my inputs. I got about 6 foot off the ground and throttled back, nothing. Alarmed, I throttled back more and it just hovered. Well at least it wasn't flying away! Throttled all the way back by now wanting the damn thing to land. Had no reaction for about 3 seconds until finally started to come down slowly. At this stage my throttle has been at 0 for what seems like an eternity but in reality probably 5 -6 seconds. This is scaring the hell out of me. Would someone please view my log and see if there's anything they can pic up? I was using a half charged battery because if it did do another flyaway it wouldn't go far. And I see the battery failsafe did Kick in but that shouldn't explain the lack of throttle accuracy. Any help would be greatly appreciated. 

  https://storage.ning.com/topology/rest/1.0/file/get/3701971471?profile=original
• Kenny Thorburn March 31, 2015 at 2:53pm

  I just came back from the field. One of my motors wouldn't start up. After coming home I discovered that the ESC was shot after I burned my hand on it. Should i try to replace the motor and the ESC, just the ESC, or just the motor. I'm new to RC and Multirotors so any advice would be greatly appreciated, thank you.