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Arducopter mega


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Arducopter mega


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Alexander posted a discussion
Hello everyone.I have some problems with arducopter (I'm using version 3.4). When I have any problems with GPS coordinates (bad signal, some buildings too close to copter, radio interference/jamming), copter attitude begins to drift badly.At worst…
Aug 28, 2017
Alexander posted a discussion
Hello.I'm trying to repair my Pixhawk board after hard crash. Board was installed without plastic cover and some parts was teared off the board, also few pcb traces was damaged.I already repaired and resoldered everything I could, except of L3GD20…
Nov 22, 2015
Alexander replied to Alexander's discussion Can't connect Mission planner to APM 2.0
"And it was working on another APM board (version 1)"
Apr 7, 2014
Alexander replied to Alexander's discussion Can't connect Mission planner to APM 2.0
"How can I trigger factory reset?"
Apr 7, 2014
Alexander replied to Alexander's discussion Can't connect Mission planner to APM 2.0
"I can see all sensors readings and everything seems to work good when I connect board to PC by USB cable.

When I'm testing 3DR radios, I'm powering APM board with PTH08080WAH switching regulator tuned to 5V (2.2A max output current).
First time I…"
Apr 7, 2014
Alexander replied to Alexander's discussion Can't connect Mission planner to APM 2.0
"Tryed, no effect :("
Apr 4, 2014
Alexander posted a discussion
Hello!Yesterday I decided to install my APM 2.0 board that I bought few years ago (never used) to my FPV plane. I downloaded mission planner, uploaded arduplane 2.78b firmware to APM board from MP, connection with USB cable worked without…
Apr 4, 2014
Alexander commented on Philip's blog post FPV setup with raspberry Pi
"Tommy Larsen, this is just funny for anyone who work with RF :) "Power king" meter from Youtube is funny too.
Even if you don't understand anything in RF technology, you can disassemble your "99W Wi-Fi adapter" and check out datasheet for output…"
Feb 11, 2014
Alexander commented on Philip's blog post FPV setup with raspberry Pi
"There is no alfa adapters with more than 0.2W of output power ;) Just measured all of them (original from taiwan)"
Feb 10, 2014
Alexander commented on Philip's blog post FPV setup with raspberry Pi
"Real possible delay is 0.1 - 0.2 sec. 0.5-1-2 sec delay is from wrong tuned software (useless cache etc)"
Feb 8, 2014
Alexander commented on Philip's blog post FPV setup with raspberry Pi
"Here is my FPV setup https://www.youtube.com/watch?v=5-zg8jXhChM
With simple USB-WiFi adapter (100 mW) you can go FPV up to 500m with 12 dBi antenna and more with bigger antenna. And such adapter weight is 5g without case. It can be good in…"
Feb 8, 2014
Alexander replied to James's discussion LEDs (big, serious LEDs) brightness control
"Are you sure that this bulb it much brighter than little piece of typical LED strip?
From ebay link i can see some mystical numbers is specs:
Specification: Voltage: 12V DC. Work current:45-50mA Power:1W

12V * 0.05A = 0.6W... And it's not 1W :)…"
Jun 1, 2012
Alexander replied to Randy's discussion ArduCopter 2.5 released!
"Yesterday upgraded my APM1 to 2.5.4 software and made some flights. At first i made some little PID tuning, so my quad flys almost perfect.
When i began to test and tune alt hold/loiter modes (low altitude at first), motor on one side suddenly…"
May 6, 2012
Alexander replied to Jason Short's discussion Arducopter 2 stability patch
"I installed 2.0.55 on my copter, downloads section says that it have stability patch already applied. But when i try to fly my quad-copter with small digital camera not in center it begin to drift to camera's side a lot. 
Seems like it don't try to…"
Dec 8, 2011
Alexander replied to Alexander's discussion Reversed supply - no ppm read, no usb power
"Successfully replaced Mega328 and 16Mhz crystal (i soldered standart size crystal), loaded firmware with codevision. Now ppm decoder works without problems and i got power from USB!
Today it was my second flight, tested Alt Hold and Loiter - works…"
Dec 1, 2011
Alexander posted a discussion
Yesterday i was tuning my ACM board via USB cable. - wire of LiPo was connected to 5v BEC, + wire was not connected. Suddenly + LiPo wire touched ground of telemetry modem... I saw some sparks, computer died.Now, when im connecting ACM board through…
Nov 28, 2011