Melih Karakelle
  • Canterbury, Kent
  • United Kingdom

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Melih Karakelle's Discussions

Autolanding with Ultrasonic Sensor?

Started this discussion. Last reply by Prashanth Rajagopalan Jul 25, 2016. 12 Replies

Hi Everyone,I have a question for you. I'm designing auto landing system with ultrasonic sensor controlled elevator.It will take the control in last 3 meters for smooth touch to the ground.And…Continue

Tags: Ultrasonic, Autolanding


Melih Karakelle's Page

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Melih Karakelle's Blog

Weird story about Google/Nest and Hardware bricking

Posted on April 9, 2016 at 12:21am 11 Comments

"Google/Nest’s decision raises an interesting question. When software and hardware are intertwined, does a warranty mean you stop supporting the hardware or does it mean that the manufacturer can intentionally disable it without consequence? Tony Fadell seems to believe the latter. Tony believes he has the right to reach into your home and pull the plug on your Nest products.

On May 15th, my house will stop…


New DroneThermal - Smallest Thermal Camera for Drones

Posted on February 11, 2016 at 6:00am 8 Comments

Hi Everyone,

After 5 months of design and test process, new DroneThermal v022016 thermal camera boards are ready to announce. 

This is probably the smallest analog (PAL/NTSC) thermal camera in the world. 

Dimensions : 20mm x 20mm x 15mm (included Lepton 25 degrees core)

Weight: 3 grams…


1 hours 43 minutes Flight with 2S NCR18650B Batteries

Posted on July 3, 2015 at 8:51am 8 Comments

Hi Everyone

Last weekend I've tested Panasonic NCR18650B batteries on my maiden PolyClub EPP airplane. 

I was expecting ~40 minutes flight but I landed after 103 minutes 24 seconds! (1h43m24s)

This batteries are definitely working!

Only disadvantage of the batteries are low discharge rate. It is max. 2C.

So, discharge current should be less than 7A…


FLIR Lepton vs Apple Facetime HD Camera

Posted on April 15, 2015 at 5:45am 4 Comments

Hi Everyone,

Yesterday, I shot this video with my MacBook Air and DroneThermal camera.

The results are promising. Thermal image resolution is only 80x60 pixel but sensitivity is not bad.

BTW, We designed an…


Comment Wall (6 comments)

At 3:48pm on January 4, 2010,
Sgt Ric
hello Melih,
My problem with Endurance-RC and their PCTx is that they didn't tell me the system would not work on my Futaba 6ex 2.4ghz radio, until AFTER I had bought it!

Are there some radios that your system will not work on?
At 10:46pm on January 4, 2010, Melih Karakelle said…

I'm using 6ex too :) I'm selling DT-3K headtracker since 8 months, and this device using same method for sending head tracking signals. No problem with all futaba, hitec, etc. I have happy 100+ customer :)
At 6:40am on February 17, 2010,
Mark Colwell
Melih, Can I use new 420 camera w 2.4ghz tx with OSD? is there video in/out pads?
And I would like to write code for USBtoPPM for Spectrum/JR head tracker.
At 8:01am on February 17, 2010, Melih Karakelle said…
Hi Mark,
Yes you can use it with OSD, camera have + - and video pads on bottomside.
Sorry about Compufly, offer finished now and i sent the products to winners. New products will on stocks in 1 week.
At 7:33pm on August 29, 2010, Ben said…
Hi Melih, I'm interested in getting a few units of USBtoPPM for Futaba. Wondering if you have C# code as example as I want to integrate it into my C# application.
At 2:15pm on February 21, 2013, emre ayvaz said…

Melih bey merhaba,

Forumu 1 haftadır takip ediyorum. Sizin epey bilgili olduğunuzu farkettim. Size birkaç sorum olacak. Benim trexc 700 bir helikopterim var. Bu helikopteri önceden belirlediğim bir profili uçurmak yada sinyal kesildiğinde en uygun yere indirmek gibi aklımda bir kaç proje var. Bu fikirlerden birinide tez olarak sunmayı düşünüyorum. Bunun için arduino gibi bir kart, sensörler ve gps modul gibi parçalara ihtiyacım var. Sonrasında da C ile biraz uğraşıp hazır kodlar üzerinde modifikasyonlar yapacağım gibi gözüküyor.

Size sorum ise bu kontrol kartın hangisi bana uygundur ve aparatları ile ilgili uygun diyata nereden alabilirim? Görüşmek üzere.

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