Ivosch
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battery pack 2P

Started this discussion. Last reply by Dwgsparky Jan 12. 3 Replies

Hello,as I got information, Hobbyking won't be selling Multistar 4S batteries 8 and 10Ah anymore. I would like to build pack from 2x 4Ah which are still in stock in EU. I wanna tape both batteries to…Continue

not stable take off in stabilize mode but smooth flight

Started Oct 23, 2016 0 Replies

Hello,I have almost everytime small issue during take off in stabilize mode @pixhawk and arducopter 3.3. When hexacopter is on the ground and I'm increasing throttle, drone starts to tilt to one…Continue

compatible compass

Started Oct 10, 2016 0 Replies

Hello,I have a pixhawk with internal compass + external GPS M8N with compass. There are to high interferences on internal so I use external compass as primary. But now I would like to have backup…Continue

DIY ESC/engine/propeller tester

Started this discussion. Last reply by Ivosch Nov 24, 2016. 14 Replies

Hi, I made engine tester based on arduino. I would like to ask you, if someone/something does exists ? I found only too expensive commercial project:…Continue

Tags: ESC, propeller, motor, tester, engine

 

Ivosch's Page

Latest Activity


Moderator
Dwgsparky replied to Ivosch's discussion battery pack 2P
"Yes and no . Yes it will work but its still a lot of work to complete instead of a simple 2-1 adapter You can charge 2 x 4S batteries together in parallel which is exactly what you are doing with your modification.  remember you dont need to…"
Jan 12
Ivosch replied to Ivosch's discussion battery pack 2P
"In one pack it will act as 4S2P, I can charge it and balance with one power and one balance connector. Less wires, better handling/connecting. I have charger for 6S battery max, I can't charge two 4S together. Parallel connection when…"
Jan 11

Moderator
Dwgsparky replied to Ivosch's discussion battery pack 2P
"why not just keep the existing battery packs and use a 2 -1 adapter to plug in both batteries. I've been doing this for years and never had problems. its also much easier to charge the separate packs .  If you solder the packs together…"
Jan 11
Ivosch posted a discussion

battery pack 2P

Hello,as I got information, Hobbyking won't be selling Multistar 4S batteries 8 and 10Ah anymore. I would like to build pack from 2x 4Ah which are still in stock in EU. I wanna tape both batteries to one piece and solder power and balance connectors in paralel way. On paralel cells will be always same voltage.Is it good idea use it like this during discharging ?See More
Jan 11
Ivosch replied to Ivosch's discussion DIY ESC/engine/propeller tester
"hi, sorry for the delay, I'm working on my 3rd hexacopter, I prepared a brief instructions how to build my tester called "Buzz" :) here it is: http://diy.ivosch.cz/buzz-drone-engine-tester/"
Nov 24, 2016
Ivosch replied to Don Megabyte's discussion Garbage output mixed in w/ overlay MinimOSD
"Actually in the new firmware is not possible disable OSD by screen switching so I load my previous firmware (MinimOsd_Extra_Copter_R800.hex) and it works now great again..."
Nov 20, 2016
Ivosch replied to Don Megabyte's discussion Garbage output mixed in w/ overlay MinimOSD
"whohooo, finaly, I was able to get it work when I load new firmware and charset from the https://github.com/night-ghost/minimosd-extra."
Nov 20, 2016
Ivosch replied to Don Megabyte's discussion Garbage output mixed in w/ overlay MinimOSD
"Same issue. I tried 5V trick and reload firmware + charset and no change :( Any other ideas ?"
Nov 20, 2016
Ivosch replied to Alexey Kozin's discussion My version of onboard oled display for arducopter 3.4 in the group ArduCopter User Group
"will it be part of the firrmware 3.4 REL ?"
Oct 26, 2016
Ivosch posted a discussion

not stable take off in stabilize mode but smooth flight

Hello,I have almost everytime small issue during take off in stabilize mode @pixhawk and arducopter 3.3. When hexacopter is on the ground and I'm increasing throttle, drone starts to tilt to one side. According to log file, motors one the one side are running faster than the others (see picture). I did calibration of accelerometers and compass several times. ESCs, motor balancing, Auto Analysis is ok. I need to compensate this tilt by pitch/roll stick. Once when the copter is in the air,…See More
Oct 23, 2016
Andre K. replied to Ivosch's discussion DIY ESC/engine/propeller tester
"Here is my source as promised: https://github.com/AndKe/ThrustMeter   Please feel free to improve and share."
Sep 10, 2016
Giovanni Esposito replied to Ivosch's discussion DIY ESC/engine/propeller tester
"Good Job Ivosch! I have done this manually with eagle tree logger and scales for years and now it's time to automate it like you did. Expecially the auto excel data export is really usefull! Will you share the source?"
Sep 8, 2016
Ivosch replied to Ivosch's discussion DIY ESC/engine/propeller tester
"I created a video how works automatic mode: youtube."
Sep 7, 2016
Ivosch replied to Ivosch's discussion DIY ESC/engine/propeller tester
"That is true, every ESC has different throttle calibration and behavior. But to compare ESC's actually I don't need RPM. What is important to me is max thrust and efficiency. To compare efficiency is good chart efficiency vs thrust…"
Sep 7, 2016
Martin Guttesen replied to Ivosch's discussion DIY ESC/engine/propeller tester
"To get usful comparison values you really need RPM mesurments if you compare ESC's with same motor and same prop you can get verry different values at the same input pwm"
Sep 7, 2016
Andre K. replied to Ivosch's discussion DIY ESC/engine/propeller tester
"My version will be on github next week."
Sep 6, 2016

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Please tell us a bit about your UAV interest
hexacopter 820, Pixhawx, 3DR radio clone
Hometown:
Brno

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