Melih Karakelle
  • Canterbury, Kent
  • United Kingdom
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Melih Karakelle's Discussions

Autolanding with Ultrasonic Sensor?

Started this discussion. Last reply by Lucas Tan Sep 12, 2012. 11 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

Latest Activity

Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Hello Sharky, No war, just talking :) About TVL, as you know Vertical image quality(not real lines) is coming from an analog data and affects from carrier frequency, transmitter band, monitor and others and as you know includes 3 color, mean you can…"
Jul 6
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Good story Dennis, About this story, I'm a member of MultiWii project(check the developers section) and a fan of KK boards. We are on same side and I'm really loving new designs, designers and their projects. But not customer…"
Jul 6
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Daniel,You are reading 525 Lines from Virtual DUB, because your capture card saying "I am broadcating 525TVL NTSC data" to virtualdub, thats all:)If you connect 800TVL camera or 100TVL or only 1TVL, Virtualdub says always 525TVL. For a…"
Jul 6
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Well, I'm not sure what is the 960TVL. Because PAL only carries only 625 TVL and NTSC is only 525TVL maximum. This values are total of ODD and EVEN frames. And the every frame will be half of this values. Making 3D CMOS camera is very…"
Jul 3
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Good video and I'm agree with you about Youtube codec killing everything. But I'm not sure about the original video too. Because OV7950 Chips designed for low light surveillance and car rear camera applications and have only 492 pixels.…"
Jul 3
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Hello Daniel,Sorry I was busy and just checked the site and read your comment.No problem, I can change my mind if any scientific explanation have about it. I just watched the 3 videos of Cy Lon and this is what I was talking about "3D…"
Jul 2
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"Hello Daniel,I think you are talking about "3D like" images, not the real 3D. "3D like" is different than real 3D. Basically if you focus the cameras from parallel to fixed point around few meters, your perspective changes and…"
Jul 2
Melih Karakelle commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird
"I think, this is bad idea because of stereoscopic vision & requirements.Your stereoscopic vision depends the distance between your eyes. And It works in only few meters with your billions megapixel vision, perfect eyeball muscle control and…"
Jul 1
Melih Karakelle commented on Jonatan Domenech's blog post This weekend: 3d printed UAV STL files
"awesome!How about ABS? any disadvantage of it except biodegradability?"
May 15
Gonzalo muñoz commented on Melih Karakelle's blog post OpenBee Modules Ready!!!
"Hi, i work with this module but I can't communicate with this device and send message with other module. How configured correctly this device? Do I need any code in openlrs module? Thanks for any replies PD: I use this module with Arduino Mega…"
Mar 13
Melih Karakelle commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"Hello Naish,Thank you for your comments. We made a long discussion about free or 0.99$ app at the office. Basically we have 2 common reason to doing this;1- Keep away the standard iPhone users. As you know few hundred million people have iPhone…"
Mar 7
naish88 commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"I just received today my 2 icell BLT battery meters. I'm really impressed they work great! really cool idea. The only thing that made me a bit upset is when I went to download the iPhone app, I discovered that wasn't fee. Yes a 0.99cents…"
Mar 6
Melih Karakelle commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"@Jiro and @Jani ;The BLE side current consumption is only ~20uA. The BLE circuit working a year with a coin cell withou any problem in full power mode.By the way, The voltage divider current consumption depends the voltage. For example 3th cell…"
Feb 23
Jani commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"Nice idea! Few question came in my mind. I also like to know the current consumption ? Does it have any effect to battery balance? I'm quessing the current from balancer pins is very small like micro amps, but is it equal between…"
Feb 22
Jiro Hattori commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"Thanks. Another question is power consumption of iCELL. How much power is consumed by this device? Actually, I assume different application;)"
Feb 21
Melih Karakelle commented on Melih Karakelle's blog post iCELL Battery Monitor over Bluetooth Low Energy
"Yes, of course you need an another iCELL to read another battery."
Feb 21

Profile Information

About Me:
R&D Engineer
Please tell us a bit about your UAV interest
www.flytron.com
Hometown:
Turkey

Melih Karakelle's Blog

iCELL Battery Monitor over Bluetooth Low Energy

Posted on February 20, 2014 at 9:50am 19 Comments

Hi Everyone,



I'm working on Bluetooth Low Energy (BLE, Bluetooth Smart or Bluetooth 4.0)  technology since summer 2013 and after few hundred hours code work my first BLE product(iCELL) ready to show and I'm happy to share here with the community.



May be you know, Some Android devices and all iPhones(since 4S) including this low power…

Continue

How About Open Source?

Posted on November 28, 2012 at 12:00pm 38 Comments





Yesterday HK released a video about their new 433Mhz LRS modules.

And i shocked. Because it is unauthorized copy of my OpenLRS !

OpenLRS is an Opensource RC and i'm the developer of that system.

Stop the video on …

Continue

OpenBee Telemetry Traffic Test

Posted on October 17, 2012 at 5:55am 5 Comments

Hi everyone, 

Another blog post about OpenBee :)



Everyone asking about telemetry speed but i didnt answer this questions because of nature of RF telemetry.

RF telemetry speed depends more than one thing. I just take this video for showing unidirectional communication limits. 

The limit depends FSK modulation frequency and RF bandwidth. We can…

Continue

UHF Spectrum Analyzer with OpenBee

Posted on October 17, 2012 at 4:33am 7 Comments

Hi Guys,

OpenBee modules ready and in stocks today. I just tested Dennis Frie's spectrum analyzer firmware and software over OpenBee. It is working perfect!. The original code a part of OpenLRS RC Receivers and OpenBee using same RF module and pinouts with OpenLRS project, this is why the code working without any problem. :)

In this…

Continue

Comment Wall (6 comments)

At 3:48pm on January 4, 2010,
Moderator
Sgt Ric
said…
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…
Hi,

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,
Developer
Mark Colwell
said…
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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