Alexey Kozin
  • Male
  • Moscow
  • Russian Federation
Share Twitter

Alexey Kozin's Friends

  • Marco Robustini
  • Andrew Tridgell
  • Kabir
  • Randy

Alexey Kozin's Groups

Alexey Kozin's Discussions

apm 2.5 case removed from new 3dr store?

Started this discussion. Last reply by Dean Jun 3, 2013. 1 Reply

only apm 2.0 case avaibleContinue

 

Alexey Kozin's Page

Latest Activity

Alexey Kozin commented on Hugues's blog post Powering your APM drone (or how not to shutdown APM like the US gov would) - practical build log
Apr 9
Alexey Kozin replied to Alexey Kozin's discussion unexpected full throttle on ac 3.1.2 in the group ArduCopter User Group
"this block removed from ahrs: - // limit vertical acceleration correction to 0.5 gravities. The - // barometer sometimes gives crazy acceleration changes    - vdelta.z = constrain_float(vdelta.z, -0.5f, 0.5f); .…"
Apr 3
Alexey Kozin replied to Alexey Kozin's discussion unexpected full throttle on ac 3.1.2 in the group ArduCopter User Group
"blue line show gps altitude error hdop fine number of sats too"
Apr 2
Alexey Kozin added a discussion to the group ArduCopter User Group
Thumbnail

unexpected full throttle on ac 3.1.2

ac reseted  after flashingwe have red thr in, green thr outvibtations only full throttleater flying near ground pilot looks full throttle, move down thr stick but ac do not have responseafter altitude reach 100m batery overloads and failplease help to analyze logfile includedSee More
Apr 2
Josh Welsh replied to Alexey Kozin's discussion apm AntennaTracker in the group ArduPlane User Group
"Start here:  https://groups.google.com/forum/#!topic/drones-discuss/4W82QWy0yqw "
Mar 31
Alexey Kozin added a discussion to the group ArduPlane User Group
Thumbnail

apm AntennaTracker

i see nice stuff:https://github.com/diydrones/ardupilot/blob/master/Tools/AntennaTracker/AntennaTracker.txtcomment in pde: "Please contribute your ideas! See http://dev.ardupilot.com for details"but i can not find the discussionSee More
Mar 31
emre ayvaz replied to Alexey Kozin's discussion Howto test arducopter in HIL (hardware in loop) mode? in the group ArduCopter User Group
"Hi randy, I have the same question for Trad. Heli. I  have connected APM 2.5, DX8 and receiver to my pc. Now mission planner and X-plane are wotking together. But I need to calibrate it correctly. Heli is flying in X-plane. But Sticks are not…"
Mar 30
Charles lakins replied to Alexey Kozin's discussion nmea extension in the group ArduCopter User Group
"the last paragraph should it not read.. if (!strcmp_P(_term + 2, _gprmc_string)) { _sentence_type = _GPS_SENTENCE_RMC; } else if (!strcmp_P(_term + 2, _gpgga_string)) { _sentence_type = _GPS_SENTENCE_GGA; } else if (!strcmp_P(_term + 2,…"
Mar 27
Alexey Kozin added a discussion to the group ArduCopter User Group
Thumbnail

nmea extension

now gps nmea library is support GPS mesages onlyGP is Talker ID (GP for a GPS unit, GN for a GLONASS)Mediatek 3333 & ublox lea 6 h support glonass system as example mt 3333 after gps and glonass fixed output mesages changes from $GPRMC to $GNRMC and APM show "NO FIX" // NMEA message identifiers //////////////////////////////////////////////////// // const char AP_GPS_NMEA::_gprmc_string[] PROGMEM = "GPRMC"; const char AP_GPS_NMEA::_gpgga_string[] PROGMEM = "GPGGA";const char…See More
Mar 27
Harald Finster commented on Alexey Kozin's blog post Allegro acs756 current sensor for arducopter
"@William: sorry, very late reply - just came across your question by accident. Short Answer: the unidirectional versions map currents from zero to max_current to output voltages between 0V and 5V, whereas the bidirectional ones match the range from…"
Mar 24
Alexey Kozin replied to Alexey Kozin's discussion arducopter compass gain in the group ArduCopter User Group
"thanks for the tip about arming, in armed state really sets a heading much more precise"
Mar 15

Developer
Randy replied to Alexey Kozin's discussion arducopter compass gain in the group ArduCopter User Group
"Alexey,      Yes, thanks for testing this.      Can I ask, how do you know the final angle is correct?  Once you disable the compass you won't see the slow correction after the copter stops moving…"
Mar 14
Crady von Pawlak replied to Alexey Kozin's discussion arducopter compass gain in the group ArduCopter User Group
"This is the complete list of user-modifiable MAVLink parameters.  Hope it helps."
Mar 14
Shyam Balasubramanian replied to Alexey Kozin's discussion arducopter compass gain in the group ArduCopter User Group
"Good observation, it does happen. However, it is the rate at which the compass values are updated (in loop) and averaged. I believe there is a parameter for this in Mission Planner settings that will lead to a faster convergence. Someone can point…"
Mar 14
Alexey Kozin added a discussion to the group ArduCopter User Group
Thumbnail

arducopter compass gain

i have tests of apm 2.5.2 with disabled compassinternal gyro only works better than "gyro + compass"with compass + gyro if i do fast rotation at 180deg. i see in mission planner another angle, after 5-10 seconds this error slowly fixed (gyro corrected by compass)if i starts this test with disabled compass i can see correct angle of rotation immediatelyi think compass correction must to be disabled in fast rotation or gyro correction gain must to be decreasedactual compass gain may be used in…See More
Mar 14
Alexey Kozin replied to Cao Zhang's discussion Surprising the same 500Heli ALT_HOLD ok in 2.73 But failue in 3.1.2 Show Pictures&Photos & param file
"maybe wrong accel calibration INS_ACCOFFS_Z , 0.794its must to be between 1.1 and 0.9"
Mar 11

Profile Information

About Me:
Arduino fun
programmer vb tsql
Please tell us a bit about your UAV interest
arduplane arducopter
Hometown:
Krasnodar

Alexey Kozin's Blog

arduplane Automatic flight to alt 2414m

Posted on May 6, 2013 at 2:30pm 18 Comments

Disclaimer:- DIYDRONES does not advocate or condone any RC flights beyond LOS or above 400'AGL. Do not try this. This…

Continue

Allegro acs756 current sensor for arducopter

Posted on November 7, 2012 at 12:00pm 18 Comments

allegro current sensor





The sensor is galvanically isolated from the…

Continue

Mediatek 3339 GPS module for Ardupilot / Arducopter

Posted on September 6, 2012 at 10:00am 7 Comments

Globaltop PA6C Gps module

  • based on new mediatek 3339  chipset
  • Real sattelite fix time 5-7s (in home too) before ardupilot is calibrated -module always get lock…
Continue

Comment Wall

  • No comments yet!

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

© 2014   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service