Jani Hirvinen
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  • Bangkok
  • Thailand
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Jani Hirvinen's Discussions

VIDEO: Arducopter magnetometer offset calibration with ArducopterNG Beta2 code

Started this discussion. Last reply by SupreCharger Jan 3, 2011. 1 Reply

SETUP Video: For all ArducopterNG users, how to calibrate your magnetometer offset with latest ArducopterNG Beta2 code from CLI. This video I am using our latest ArducopterNG beta2 code and DIYDrones…Continue

Tags: Offset, calibration, Video, ArduCopterNG, videos

IR Rangefinders... goes I2C

Started this discussion. Last reply by Michael Pursifull Sep 6, 2011. 1 Reply

Today when I was trying to find something I found something reallyinteresting. Especially for us who is working on AeroQuad/AeroCopter. IRRangefinder with I2C bus well that would fit quite perfectly…Continue

Tags: I2C, Rangefinder, IR


Welcome jpkh

Latest Activity

Jani Hirvinen replied to TheGiantUfo's discussion JDrones store, no response!!! in the group ArduCopter User Group
"Mostly our girls are not answering here, they answer on private emails and trough our system. Especially when it's about shipping issues. To be honest, I don't even know anything about shipping.. I just see that packets are going out from…"

Jani Hirvinen commented on Sandro Benigno's blog post FRSKY's CPPM at 27mSec - Firmware update with FT_Prog and FTDI cable
"Sebastien sure you can do that. Firsy you need to understand FrSky protocol and how they made it. There are two main protocols running ob that port. One main transfer proto and then Hub proto is encapsulated inside of transport. Jusy google frsky…"
Sep 21
Jean-Marie PRIGENT commented on Jani Hirvinen's blog post HeavyDuty Antenna tracker
"Hi Palo, not sure what you are asking but I'm using HITEC 645MG unmodified with this http://www.readymaderc.com/store/index.php?main_page=product_info&products_id=96     so I'm not on continuous pan. "
Jul 30
palo sestak commented on Jani Hirvinen's blog post HeavyDuty Antenna tracker
"Jean-Marie, does your changes involve also continuous pan, because Jani claimed the heavy duty A tracker will be on slipring..."
Jul 30
Jean-Marie PRIGENT commented on Jani Hirvinen's blog post HeavyDuty Antenna tracker
"Thanks Jani I've made a lot of MODs on Your version, Colin's version and Heino Pull. - I've add Diversity based on cheap's video switch on analog 1 & 2 and visual bar on main screen. - Moreover, I've make correction to…"
Jul 30

Jani Hirvinen commented on Jani Hirvinen's blog post HeavyDuty Antenna tracker
"New set of cases are coming at end of next week. we are now on 3rd gen of electronics and 4th should be final."
Jul 30
Jean-Marie PRIGENT commented on Jani Hirvinen's blog post HeavyDuty Antenna tracker
"Any news of this project Jani ?  "
Jul 30
Andre K. commented on Jani Hirvinen's blog post Adding more features to IOBoard
"Cool project. Today, I have similar fuctionality using Graupner HoTT - except with HoTT I have 2-way option (called "textmode") - where I can tune PIDs , select missions etc from the transmitter. Is there any chance for FrSky/OpenTX…"
Jul 28

Jani Hirvinen replied to OBwan's discussion Anyone know to load a prefetched map in Mission Planner?
"Dave, yeah be careful on the size of the map that you plan to fetch... Even small area can easily be thousands of pictures and bigger areas millions :) I wonder how many pictures there are in total on Google Earth that covers all zoom levels from…"
Jul 17

Jani Hirvinen replied to OBwan's discussion Anyone know to load a prefetched map in Mission Planner?
"Again like dave said, it's simple.. Just go to Flight Plan tab, Zoom to area that you want to pre-fetch. Click right, from popup menu select Map Tool -> Prefetch. System will ask if you want to pre-fetch current display area, say YES and say…"
Jul 16

Jani Hirvinen replied to Eric's discussion Long distance milestone for multirotors? in the group ArduCopter User Group
"Flying manual or autonomous does not really matter. Just like ArduCopter, you can put waypoint to otherside of the world and it would try to reach it but as we cannot carry enough power on board it would fail. Flying autonoumsly you just need to do…"
Jul 16

Jani Hirvinen replied to john's discussion Are there 100,000 lines of code in Arducopter Firmware?
"Simply answer: Yes There are more than 100.000 lines of code that our dev teams have been writing. Originally we had most of the code in normal Arduino sketches but now most of them have been moved to libraries. Most of the code is used on every…"
Jul 10
Ragnar Myhre commented on Jani Hirvinen's blog post Adding more features to IOBoard
"I have connected the IO-board to the APM and to the FrSky receiver according to Jani's diagram ( http://diydrones.com/profiles/blogs/adding-more-features-to-ioboard?id=705844%3ABlogPost%3A1348450&page=1#comments ). But I'm not getting…"
Jul 9

Jani Hirvinen commented on Jonathan Hair's blog post Hobbyking releases HKPilot 2.7
"Chinese people are getting better and better. It's nice to see that they also start to obey western regulations. Sad thing is that APM is on it's end of life time. Like TCIII said, APM has ran out of resources..."
Jul 3

Jani Hirvinen replied to Michael Cook's discussion Gas Powered!
"Clock is your best friend for those.. All airplane, helicopter pilots are using timers to measure flight times. Sure we can also make small flow sensor that measures how much we have been "eating" our gasoline but for now timer is best,…"
Jul 3

Jani Hirvinen replied to Michael Cook's discussion Gas Powered!
"Michael, we run here single, boxer, 4 cylinder gasoline engines on many different types of airframes and usually no problems with vibrations. Single cylinder naturally creates most of the vibration compared to others. Also we are not using any…"
Jul 2

Profile Information

About Me:
Electronics, Computers and Aviation is always been my life/hobby/living. Usually play with r/c helis but now moving towards UAV Drones :)

Currently living in Bangkok area where causing havoc with my 450 size helis, parkflyers and drones...

And running jDrones.com site that produces ArduCopter Frames and other parts.
Please tell us a bit about your UAV interest
Bangkok (TH), Helsinki (FI)

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Jani Hirvinen's Blog

Arduino ModeSwitch with OLED display and passthrough ports

Posted on December 20, 2013 at 7:06am 9 Comments

The ModeSwitch saga continues, I am happy to announce our new OLED ModeSwitch project for all. 

Several days we published LED based Flight ModeSwitch project here and I promised to show this OLED project too so here goes. 

This is more advanced compared to our upcoming…


Arduino ModeSwitch with LEDs

Posted on December 18, 2013 at 3:23am 27 Comments

6 Way mode switch gets life...

Finally after several iterations on PCB and electronics design, first jDrones ModeSwitches are getting to daylight.

First boards are fully operational and we are testing them with several of our test flyers. …


Lady GaGa, first wearable hexacopter

Posted on November 11, 2013 at 3:11am 45 Comments



Ok now I have seen it "all"... For some reason I were not stunned to see that it was Lady GaGa who made this first.. But here we are.


On their video it looks a bit badly tuned but it flies. Unfortunately video cannot be embedded to Ning so everyone need…


New jD-IOBoard firmware and Configurator is available.

Posted on November 8, 2013 at 2:10am 8 Comments

jDrones IOBoard with MAVLink & FrSky bridge
New version of jD-IOBoard MAVLink / FrSky bridge software is now available on our download area. This version contains several bug fixes and also new features.

Also new jD-IOBoard Configurator is available on download area. New…


Comment Wall (20 comments)

At 1:19am on June 6, 2010, hawk said…
Yes, very great! I thinks u need to know heli dynamic.If u want to get this I can help u as much as I can. Thanks for ur preformace.
At 11:27am on July 4, 2010, woranon said…

Thank you very much for your help.
I have follow your link and I found it is tons of data to build Adrucopter.
I have read your profile and very glad. That you have stay in Bangkok Thailand.
Because I'm a thai people and live in thailand. I'm a student and try to finish my Bacherlor Degree with multirotor copter.Now i'm study hard for Adrucopter.

Best regards.
At 4:56pm on November 20, 2010, majorpr13 said…
Does this mean the first 50 left from the fah-pah store...when will
the USA ones shipped from the orders at diydrones... and how will
we know when ours has shipped..?
At 9:31pm on November 20, 2010,
Jani Hirvinen
Single users will receive tracking/register number after their packets are shipped, that is normal way how ecommerce systems works. We try to ship 15-25 kits / day untill 1st batch is fully sent, 2nd batch starts to send when all parts are arrived.
At 11:36pm on November 20, 2010, majorpr13 said…
How do we know what batch our order was in???
Thank you
At 9:38pm on January 29, 2011, Tomtom Express said…
Hi Jani,  Are any places to fly a fixed wing in Bangkok ?   I need to spend a few days flying .  Should I think about spending some time in Pattaya or Chiang Mai ? Thanks, Harry
At 7:14am on August 26, 2011, Guang Yao said…

Hi Jani! I am from Singapore (nearby) and I've got a very quick question for the Oilpan. If I connect signal wire of an analog sensor to analog port 8. Can I read it by using analogRead(62) or analogRead(AN8)? Tried to find some related forum posts but can't find a specific answer. Hope to hear from you soon!

At 7:49am on September 24, 2011, Todd Steury said…

Hi Jani. Loving the new hexacopter kit. Very nicely done. Does JDrones have led covers for the motor mounts?


At 5:49pm on September 24, 2011,
Jani Hirvinen

Todd, thank you it was a pleasure to make that. More will come to it. Same goes for mount covers, they are soon on store with additional stuff.

At 9:14am on October 8, 2011, Anis Nielsen said…

Jani, im looking forward to your coming gimbal series ; do you have an ETA to when i can order some ? will they be sold complete with their servo's ?  Cheers!



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