MHefny
  • Male
  • Cairo, Cairo
  • Egypt
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MHefny's Discussions

Quadcopter Control-Function Layers

Started this discussion. Last reply by Anis Chihi May 22, 2013. 2 Replies

IntroductionQuadcopters is a very active topic, it is fun and easy to build, and make use of rich set of sensors for stabilizing and navigation. So if you like flying, mechanics and programming then…Continue

Tags: framework, control, quadcopter, hefnycopter

 

MHefny's Page

Latest Activity

MHefny commented on MHefny's blog post Andruav - More Powerful & Still for Free
"Local version of Andruav is expected to run on Wifi, it might need a small laptop to run. Local wifi in the field can be built using  tethering from your GCS mobile phone for small range, a wifi booster and special hardware can dramatically…"
Jun 11
Thomas Stanley-Jones commented on MHefny's blog post Andruav - More Powerful & Still for Free
"What will Andruav Local Server be able to do?  Would the Android phone connect to other phones using something like RFD900 radios?  Or would it be strictly a WiFi connection?"
Jun 10
MHefny commented on MHefny's blog post Andruav - More Powerful & Still for Free
"Also Andruav is much more than VLC, yes VLC can cover a function and in local wifi environment, but this is not all Andruav. :)"
Jun 10
MHefny commented on MHefny's blog post Andruav - More Powerful & Still for Free
"@Hans H, That is why Andruav Local Server is used for ... it is still under development."
Jun 10
Hans H. commented on MHefny's blog post Andruav - More Powerful & Still for Free
"Thanks MHefny! In a city this is great! But "in the forest" without 3G/4G it would be nice to use WiFi and a PC. VLC have a BIG sett of filters / modification / OSD funktions to help co-pilot / pilot. VLC can usually open…"
Jun 10
MHefny commented on MHefny's blog post Andruav - More Powerful & Still for Free
"@Hans H,  actually you can access web video from www.globalarc.us that integrates with Andruav App."
Jun 8
Hans H. commented on MHefny's blog post Andruav - More Powerful & Still for Free
"Super app! Is it possible to receive the streaming video on a PC? Using VLC? (I tried to google this but didn't find an answer) Best regards!"
Jun 8
MHefny commented on MHefny's blog post Andruav - More Powerful & Still for Free
"@Jerry Giant ... Thank you for the feedback. You are absolutely correct.  Please find more description in my previous articles: Andruav - Towards a Shared Data Model What is Andruav?  [earliest blog] Andruav - Unlimited Telemetry…"
Jun 6
Jerry Giant commented on MHefny's blog post Andruav - More Powerful & Still for Free
"it's better to draw a diagram to present your solution is binding a android device to work at a remote mavlink/streaming app. it took me 5mins to make sense of it."
Jun 6
MHefny posted a blog post

Andruav - More Powerful & Still for Free

A year from now I published Andruav latest article. Since then a lot of improvement have been applied.What is Andruav in FPV ?Andruav Video Streamer has been re-written to make use of modern Video Streaming technologies. Now Andruav stream video almost in real-time, it also can broadcast video from a single drone to multiple GCS including Online Web. What is Andruav in Telemetry ?Andruav already supports Telemetry for multiwii, APM &…See More
Jun 5
MHefny posted a status
"Andruav Video over Wifi/3G http://www.youtube.com/watch?v=MbOb5_hVcz0"
May 30
MHefny replied to MHefny's discussion Changing Main frequency of HM-TRP 3DR Radio for Telemetry using AT Commands
"Based on replies the antenna circuitry will affect the range, but I guess for two adjacent frequencies it might work ok. you need to try and remember all firmware could be reversed back. "
Mar 11
Reuben replied to MHefny's discussion Changing Main frequency of HM-TRP 3DR Radio for Telemetry using AT Commands
"Anybody got any updates to this post .. i wanted to take a RFM23B  433 to 466?"
Mar 10
MHefny replied to Nelson Hom's discussion I want to send fpv live feed video to phones.
"Please try https://play.google.com/store/apps/details?id=rcmobile.FPV it sends low rate video stream over 3G/4G and much more other features. "
Nov 1, 2015
Mark commented on MHefny's blog post To Tricopter or to Quadcopter ..... That is the Question
"Hi Gary,  Apologies, I missed the point re non mechanical mech tilt. BTW, the aerodynamics of arms are less of an issue with the newer quads as the arms are around 14mm wide but thicker.  They would be even less but for the escs being…"
Oct 28, 2015
John Rambo commented on MHefny's blog post To Tricopter or to Quadcopter ..... That is the Question
"So personal observations: - In bright daylight TRIs give much better orientation feel (completely Agree to Jonh) - If servo is not undersized (thus increasing its realiability), less ESC/Motor count results in higher reliability for TRIs - More…"
Oct 28, 2015

Profile Information

About Me:
I am a computer Engineer, works in software field. However as a hobby I am interested in hardware and autonomous vehicles.
Please tell us a bit about your UAV interest
I am trying to build a UAV that can navigate in closed area.
Hometown:
Cairo, Egypt

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MHefny's Blog

Andruav - More Powerful & Still for Free

Posted on June 5, 2016 at 3:00pm 9 Comments





A year from now I published Andruav latest article. Since then a lot of improvement have been applied.

What is Andruav in FPV ?…

Continue

To Tricopter or to Quadcopter ..... That is the Question

Posted on October 26, 2015 at 7:30am 18 Comments



Maybe you are one of those who googled for the difference between Quadcopter & Tricopter. For sure you found many feedback and comparisons. 

Mainly the difference will be regarding power consuming, or mechanical complexity. Some prefer Quadcopters for its simplicity to build and fix, others prefer TRICopter for its ability to YAW more…

Continue

A Python Experiment in Gyro Calibration & Drift Cancelling

Posted on June 13, 2015 at 7:12pm 0 Comments

This article is to share my findings in gyro calibration. I tried to make a python script that uses data comes from mobile phone [S5 that has 6050 IMU]. It was a good chance to write simple code and visualize results much easier than doing so on Arduino with IMU 6050 attached. But still the concept…

Continue

Andruav - Towards a Shared Data Model

Posted on June 5, 2015 at 7:26pm 8 Comments

It has been a while since my last article about Andruav.

Now Andruav has…

Continue

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