Artem's Friends

  • Mikhail
  • Julien Dubois
  • Forrest Frantz
  • Rolf Blomgren
  • Shyam Balasubramanian
  • Tommy Larsen
  • Simon Howroyd
  • Rob_Lefebvre
  • emile 'butch' alline
  • Michael Oborne

Artem's Groups

Artem's Discussions

New power module proposition

Started this discussion. Last reply by Artem Mar 5. 7 Replies

Hi everyone! I would like to list two ideas (none novice or mine) which I hope will gain the attention of our community and result in 3dr introducing some new products and functions in the apm…Continue

Tags: halleffect, hall effect, voltage sensor, current sensor, 6s

MyFlyDream AAT and APM/Pixhawk

Started this discussion. Last reply by mP1 Feb 18. 2 Replies

Hi, I am seriously considering building an antenna tracker. However after some research and sourcing all the various parts/bits and pricing it all together I get a really "hacked-together" looking…Continue

APM Output Function

Started Dec 17, 2013 0 Replies

Hey, could someone point to me where can I find APM_RC library? Also, am I correct that this library includes functions which are used to control APM output? this is what I am trying to do:currently…Continue

noob question

Started this discussion. Last reply by Artem Nov 19, 2013. 6 Replies

Hi everyone, I've just finished building a tricopter, put an apm 2.6 with external mag/gps on a self made mast very far from any interference, but close to the CG my apm is directly on the CG. done…Continue

Tags: 2.6, apm

 

Artem's Page

Latest Activity

Artem replied to Randy's discussion ArduCopter-3.1 released!
"another point to read release notes:  warning#1   what I thought were sync issues with me going up in lipo count was actually APM setting all motors low..... 2 times it dropped from the sky and I switched motors at the same time updating…"
8 hours ago
Artem replied to Andrew McKinstry's discussion Antenna Tracking 3dr telemetry ??
"I hear ya!  it would be nice if 3dr would make a tracker in the same for factor as skylark AAT,  or skylark themselves teach their brainchild to understand mavlink on the ground w/o occupying a sound channel. Sound from the copter's…"
Tuesday
Artem replied to Forrest Frantz's discussion Mission Planner Mavlink Won't Connect (No Heatbeat Packets Received)
"LOL!!!!........ maybe 2?  "
Monday
Artem commented on Chris Anderson's group ArduCopter User Group
"Hi, I am trying to pair 2 air modules of an old 3dr radios, does anyone know how to accomplish this?  "
Monday
Artem commented on Graham Dyer's blog post Prop testing on a 'copter
"oh yes, I love the 11.47 rctimers!  they are perfect for the money! my dt750 @4s and 11x47 rctimers drwas about 9-10amps (tri total) on hover (i know dt750 are officially rated for 3s but they do just fine for on 4s not even warm after 13-15…"
Apr 18
Artem commented on Thanh Nguyen's blog post My First Quadcopter with xtPilot [Setup]
"@ Thanh, awesome project, I noticed you mentioned damaging ur battery when mounting underneaths, may I offer you a suggestion to mount your 4in1 ESC underneath and put your battery in-between the plates,  if your current battery does not fit,…"
Apr 14
Artem commented on Trent at MyGeekShow's blog post Long Range Telemetry Testing
"Trent, try using good dipoles on the 3dr radio (both modules) and you will get about 7-8km  56kbps with about 80% RSSI,  make sure those are good proper dipoles and the land module is at least 5-6 feet off the ground.  take a look (if…"
Apr 10
Artem replied to Rolf Blomgren's discussion APM MavLink to FrSky X8R S.Port converter
"pls advise a link to such f/w as i have an unused D4R-II which I like for its small size/ great range. "
Apr 10
Artem commented on Thanh Nguyen's blog post Low cost version of APM2.5
"@ Xuan, if you do those thing it would be an awesome alternative for a bulky APM, just make sure to have a really stable 3.3v rail, as people tend to connect sensitive equipment to the UART ports.   even with 32bit development there will be a…"
Apr 9
Artem commented on Thanh Nguyen's blog post Low cost version of APM2.5
"did you use a reflow for the surface mount elements? "
Apr 9
Artem commented on Richard (DK)'s blog post BLHeli for Atmel and Silabs, united by BLHeliSuite
"out of my experience Blheli just shines on k-foce 40a  ESCs on 380kv 40mm multistars on 6s and 1555 props.. "
Apr 9
Artem commented on Thanh Nguyen's blog post Low cost version of APM2.5
"anyway you could miniaturize this by completely removing PWM RC input leaving only ppm with all surface mount mini connectors (HKmini like)?  and making  connectors+LEDs and  baro on opposite board faces, so the board can be mounted…"
Apr 9
Artem commented on Hugues's blog post How-to guide: Pixhawk with 6S batteries (> 4S)
"well, you can do a resistor divider to one of the pins on the APM..... this is essentially what apm power module does.... the equation is in the post... or in the thread body. sorry cannot point out, I'm on the phone. "
Apr 4
Artem commented on Hugues's blog post How-to guide: Pixhawk with 6S batteries (> 4S)
"check hall effect sensors discussed earlier in this thread"
Apr 3
Artem commented on Gisela & Joe Noci's blog post Antenna, Feedpoint matching, Baluns, Turnstiles and why Complex homegrown antenna mostly do not work...
"Hi Joe, thank you for this post, it does give me so much info to process. Also, may be you know why manufacturers won't just make a 72ohm tx/rx?  wouldn't it be simpler to change the tx to accept simple dipoles? at least for the fpv…"
Apr 2
Artem replied to Hugues's discussion How to assign a receiver channel as a pass-thru Pixhawk ? in the group ArduCopter User Group
"they "sort of" do. they have and adapter: http://www.flytron.com/openlrs/123-futaba-jr-module-adapter.html  and:   http://www.flytron.com/rc-electronics/247-jr-module-case.html so, buy futuba one and those two and u…"
Mar 21

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Comment Wall (3 comments)

At 6:05pm on January 29, 2014,
MR60
Forrest Frantz
said…

What is your budget?

At 6:14pm on January 29, 2014, Artem said…

this is going to be for my "dream tricopter"  and thus I will be making some saving for this purpose, so if it is under 100usd than I think I could afford them....  so far I found NX-4006-530kv motors 67g 481g @ 3.35amp theoretically 

At 6:16pm on January 29, 2014,
MR60
Forrest Frantz
said…

Also, can I phrase the question as such:

Is there a rotor (motor and prop) that generates more than 430 grams of net thrust (500 grams less motor weight of 70 grams; thrust after the weight of the rotor is removed along with the additional weight of 2 grams per inch of prop over 10"), while sipping 43 watts or less (3 amps at a 4S voltage that varies between 10 and 17 volts)?  In other words, a rotor with an efficiency of about 10 grams per watt at 430 grams of net thrust.

Is it OK to word the question that way?  If so, then a 130 gram rotor generating 560 grams thrust at 43 watts would be OK as would a 50 gram rotor generating 480 grams of thrust at 43 watts.

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