walthero
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walthero's Discussions

Can we learn something from this man? One of the worlds experts on batteries and charging

Started this discussion. Last reply by J Dilling Aug 1, 2013. 3 Replies

He claims the industry not have done  any development the last 100 years !!Google translation of the article h…Continue

Mute button for messages in Mission Planner would be great!

Started this discussion. Last reply by Jeff Pinkston Jan 29, 2013. 6 Replies

Somewhere in mission planner maybe in Missions.When i disconnect battery and connect via USB (a typically routine) the warning of battery (of course) speech is annoying and the the only way to stop…Continue

Bluetooth telemetry module

Started Jan 26, 2013 0 Replies

Just got this:…Continue

 

walthero's Page

Latest Activity

walthero commented on AKRCGUY's blog post Another Noob pilot wrecking it for the rest of us...
"Smoking kills. Works on cigarettes. Also with a permanent wider arm check which is not possible to turn of."
Oct 4, 2013
walthero commented on John Arne Birkeland's blog post Another multicopter crash into a crowd..
"I think a wider armcheck is a good alternative for safer flying. With no possibility to disabling. With efficient error messaging in MP it would be possible even for beginners to solve.Normally I find ARM_check rather annoying, but for safety…"
Sep 18, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"Who would ever give you a deal like that on flying machines???Of course you meant it  as a joke."
Aug 20, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"This is absolutely true. "If you take the time to set your vehicle up correctly it will fly well."Thats all it is. Have build many F550's (8) and S800's (6) and some F450's all with default settings. No issues at all…"
Aug 20, 2013
walthero commented on Kevin Hester's blog post You really should use a radio GCS (even if you are new)
"How to extend the range on a 433Mhz sender?I'm already use an USB extension cable (2m) and the range is only 10-15 meters (up in the air) with LOS. As far as I understand this short range is caused of the USB port (noise) on the Ground Module…"
Aug 14, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"Can someone please tell me how far the APM board could be mounted (in cm in z-axis)Also how far from center of frame could the board be mounted?And how to set this offsets in MP?"
Aug 12, 2013
walthero replied to William Burkert's discussion APM 2.5/6 and Light Sensitivity in the group ArduCopter User Group
"To late to save my changes :( (what about extend the edit period to 60 minutes) Is it a way to "route" these led's to analog ports and set up with "Led_Mode?Is it possible to disable these led's on the board? "
Aug 10, 2013
walthero replied to William Burkert's discussion APM 2.5/6 and Light Sensitivity in the group ArduCopter User Group
"After reading whole of this tread I'm quit sure the light sensitive barometer reporting suddenly drop or rise in altitude is causing the motors to shut of if reporting to high and opposite when reporting to low cause the motors to accelerate at…"
Aug 10, 2013
walthero replied to William Burkert's discussion APM 2.5/6 and Light Sensitivity in the group ArduCopter User Group
Aug 10, 2013
J Dilling replied to walthero's discussion Can we learn something from this man? One of the worlds experts on batteries and charging
"I ask myself more the question how many battery patents are rotting in the drawers of all the oil multis. Things happend, but as our system only supports change carried by money, a lot of technology got bought to reduce future competitor…"
Aug 1, 2013
Andreas Gazis replied to walthero's discussion Can we learn something from this man? One of the worlds experts on batteries and charging
"Well he makes some valid points but he seems to not address some obvious points. For example, charger and battery efficiency. OK, so we need to top the batteries up with an extra 7%-20% plus whatever the charger eats up. But in internal combustion…"
Jul 29, 2013

Developer
John Arne Birkeland replied to walthero's discussion Can we learn something from this man? One of the worlds experts on batteries and charging
"No offense but he sounds a bit like an bitter old mans rambling on about how everything was better before. First let's start with Lithium batteries which has revolutionized the R/C hobby and pretty much anything mobile. While the principle…"
Jul 29, 2013
walthero posted a discussion

Can we learn something from this man? One of the worlds experts on batteries and charging

He claims the industry not have done  any development the last 100 years !!Google translation of the article here...After reading this I think no longer…See More
Jul 29, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"Used google for a long time now but waiting for this to be fixed.More advanced search functions here:http://www.googleguide.com/advanced_operators_reference.html cheers..."
Jul 21, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"Same in Firefox, Opera and Safari :(Any Browser/Version who work at all?"
Jul 21, 2013
walthero replied to Randy's discussion ArduCopter-3.0.1 released!
"Any reason i'm not able to search in discussions from these pages now? Any word I search replies:Our apologies - we couldn't find any discussions matching your search. Suggestions: Make sure all words are spelled correctly Try different or…"
Jul 21, 2013

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Please tell us a bit about your UAV interest
Hooked
Hometown:
Oslo

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Comment Wall (2 comments)

At 6:24am on February 25, 2013, Petrus Botha said…

Of course I can help you with your design, please provide your requirements and I will see what I can do

At 4:19pm on July 1, 2013, Logan Graves said…

This is for the S800 frame:

What kind of battery do you use?

How do you do voltage/current measurement?

Can you provide pictures of your setup?

How is the compass interference? Are you using the onboard or offboard magnetometer?

How are the vibrations? Did you have to use any kind of vibration dampening on the APM?

What kind of flight time do you get?

Thanks a bunch!

Logan Graves

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