Hi there guys

The summation of a number of noob errors has resulted in my (quite large) hexacopter attempting to take out a palm tree.

Logs are attached for your perusal. I would quite like it if somone experienced could confirm my theories.

1) A new 1.2Ghz video Tx is fitted. 1000mW. Overpowered and probably very noisy

2) A new GPS module is fitted. Generic M8N from banggood.com

3) Pilot neglects to test GPS with the Video Tx running.

4) Pilot fits a new antenna extension to his OpenLRS system and subsequently disconnects internal antenna connection within the OrangeRx OpenLRS Tx module.

5) Geofence complicates the above

My plan:

> Replace the 1000mW Tx with a more reasonable 500mW model.

> Use a frequency that is less deliterious to GPS (can anyone tell me which specific requencies in the 1G2 range are best?)

> Replace M8N with a LEA-6H

> Use a ground plane under the GPS?????

> Keep M8N as a secondary GPS and use dual GPS???

> Switch back to 5.8Ghz Video Tx?.

Many thanks for your help.

2015-08-02 10-14-25.part01.rar

2015-08-02 10-14-25.part02.rar

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Dylan, 

         Could you explain a bit more information regarding what has happened? You say that some errors resulted in a crash but what exactly were those errors? From your list I would have to make assumptions of what happened instead of looking to see what the problem was.

    What type of craft do you have. Is it homemade, or store bought. Do you have an APM or Pixhawk, or a different clone variety. What motors, battery, props, esc combination do you own ...etc. 

    From your list i'm assuming that you believe that some sort of GPS related flyaway has occurred resulting in your hex crashing into a nearby tree.  

    Ps: your attachments are not available. Just the .bin file is needed for most to provide assistance. 

    • Moderator

      I'm going to let more experienced folks look at the log file. All I would add is that when you change stuff do it one item at a time. You seem to have worked that out for yourself though!

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @a1k0n: Did I get rid of hand-tuned parameters? Yes. Am I still hand-tuning more parameters? Also yes. I have a few knobs to address the…
Monday
DIY Robocars via Twitter
RT @a1k0n: I'm not going to spoil it, but (after charging the battery) this works way better than it has any right to. The car is now faste…
Monday
DIY Robocars via Twitter
RT @a1k0n: Decided to just see what happens if I run the sim-trained neural net on the car, with some safety rails around max throttle slew…
Monday
DIY Robocars via Twitter
Saturday
DIY Robocars via Twitter
RT @SmallpixelCar: @a1k0n @diyrobocars I learned from this. This is my speed profile. Looks like I am too conservative on the right side of…
Saturday
DIY Robocars via Twitter
RT @a1k0n: @SmallpixelCar @diyrobocars Dot color is speed; brighter is faster. Yeah, it has less room to explore in the tighter part, and t…
Saturday
DIY Robocars via Twitter
RT @a1k0n: I'm gonna try to do proper offline reinforcement learning for @diyrobocars and throw away all my manual parameter tuning for the…
Sep 23
DIY Robocars via Twitter
RT @circuitlaunch: DIY Robocars & Brazilian BBQ - Sat 10/1. Our track combines hairpin curves with an intersection for max danger. Take tha…
Sep 22
DIY Robocars via Twitter
RT @SmallpixelCar: Had an great test today on @RAMS_RC_Club track. However the car starts to drift at 40mph. Some experts recommended to ch…
Sep 11
DIY Robocars via Twitter
RT @gclue_akira: 世界最速 チームtamiyaのaiカー https://t.co/1Qq2zOeftG
Sep 10
DIY Robocars via Twitter
RT @DanielChiaJH: Always a good time working on my @diyrobocars car at @circuitlaunch. Still got some work to do if I’m to beat @a1k0n howe…
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: My new speed profile for @RAMS_RC_Club track https://t.co/RtLb7TcgIJ
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: Practiced at @RAMS_RC_Club today with my new @ARRMARC car https://t.co/AEu2hCx89T
Aug 28
DIY Robocars via Twitter
Aug 24
DIY Robocars via Twitter
RT @gclue_akira: 柏の葉で走行させてるjetracerの中身 #instantNeRF #jetracer https://t.co/giVvuE4hP7
Jul 4
DIY Robocars via Twitter
Cool web-based self-driving simulator. Click save when the AI does the right thing https://github.com/pncsoares/self-driving-car
Jul 4
More…