Jiro Hattori
  • Male
  • Kanagawa-ken
  • Japan

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Jiro Hattori's Groups


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Latest Activity

Jiro Hattori replied to Jiro Hattori's discussion 仮称: DIY Drones Boot Camp in the group Japan ArduCopter Group
"DSJ(ドローンスクールジャパン) なんて発見! 個人的に飛行場が、近いので良いかと。。 http://www.skyrobot.co.jp/school.html 資本金は、大きいのですが何者???"
Jiro Hattori commented on Randy's blog post Terrain Following Missions using Lidar
"@Randy, this very nice demonstration of terrain following. On the  Terrain Following Mission (using Lidar) video, the copter is hit tree top by RTL. Hit something on RTL is very old failure. What do you think to avoid such a thing ? Actually,…"
May 14
Jiro Hattori commented on Gary Mortimer's blog post Europe canes America in drone delivery race
"Is it EDF or something ?"
May 12
Jiro Hattori replied to mosla's discussion スタビライズモード以外で離陸せずに立ちゴケをしてしまいます in the group Japan ArduCopter Group
"@ODA さん、 本当だ! Pixhawk自体は、3DR製の本物に見えるのですが、ケーブル側の白色コネクタは、DF13じゃないですね。 以下のサイト説明は、明解と言うかホビキンが使っているコネクタが、不明です。 http://www.infinity-hobby.com/main/article_info.php?articles_id=442 "
May 11
Jiro Hattori commented on Chris Anderson's blog post HK releases Quanum FollowMe drone
""The APM-based Quanum line from HobbyKing..", is it correct? If it is correct then we may utilize those accessories with our Pixhawk:-) "
May 4
Jiro Hattori replied to mosla's discussion スタビライズモード以外で離陸せずに立ちゴケをしてしまいます in the group Japan ArduCopter Group
"ログでなくて、配線とコネクタの接触不良の見直しです。 特に、モーター・ESC及び端子ですね~"
May 1
Jiro Hattori replied to Jiro Hattori's discussion Linux系Flight Controller and/or Companion computer in the group Japan ArduCopter Group
"Raspberry Pi Cam品切れ後新型が、発売された記念に! 1) Randy さんのOpenCV version0.3…"
Apr 29
Jiro Hattori replied to benbojangles's discussion Companion: Pi2 in the group Companion Computer Working Group
"benbojangles, cool :-) It is not cool very few people around here."
Apr 24
Jiro Hattori replied to Simon L.'s discussion Pixhawk 2.4.8 from Bangood - not working as expected in the group PIXHAWK
"I am almost purchasing "Px4Pilot" from HK. It looks like identical for both Pix flight controllers. There are several missing part from original Pixhawk of 3DR. The attached picture from RC group. …"
Apr 22
Jiro Hattori commented on Randy's group Japan ArduCopter Group
"都内でドローン: 「ミズノスポーツプラザ千住」では、屋内のフットサルコートをドローンの飛行目的で借りられる。平日ならビジター料金で10〜12時が7560円/1H、12〜19時が9720円/1H、19〜23時が1万5120円/1Hで、土日祝も1万5120円/1Hで利用できる。 日経コンピュータ IT-PROより http://itpro.nikkeibp.co.jp/atcl/column/14/255608/041900188/?ST=management&P=1 "
Apr 22
Jiro Hattori commented on Randy's group Japan ArduCopter Group
"APMの設定については、こちらを参考にしてください。 大半の問題点の回答になります。 http://www.enroute.co.jp/manual/docs/APM25UserGuideV1_enroute.pdf Japan Dronesさん、enRoute さんに感謝!"
Apr 20
Jiro Hattori commented on Chris Anderson's blog post Intel gives sneak peak of drone development board
"Anyway, "RealSense" will provides nice obstacle avoidance for indoor application. The point is that there is standard sensing device that kind will not provide for Pixhawk. "
Apr 19
Jiro Hattori replied to R.Nakano's discussion 【 ArduPilotトレーニング、ソフトウェアエンジニア養成塾開催します! 】 in the group Japan ArduCopter Group
"こう言うの見ると、結構ショックですね。  "
Apr 19
kaoru mabuchi replied to Jiro Hattori's discussion Linux系Flight Controller and/or Companion computer in the group Japan ArduCopter Group
"<a href="http://www.emlid.com/raspberry-pi-3-support-for-navio-is-here-2/?iframe=true&width=1280&height=620" rel="prettyPhoto[movie]" target="_blank" title="RASPBERRY PI 3 SUPPORT FOR NAVIO IS…"
Apr 18
Jiro Hattori commented on Mirko Denecke's group BBBMINI
""Flying BeagleBone Green" is very nice instructions as always by Mirko. "
Apr 15
Jiro Hattori replied to mosla's discussion スタビライズモード以外で離陸せずに立ちゴケをしてしまいます in the group Japan ArduCopter Group
"GPS もマストの上に搭載されているので、問題ないと思います。 その防振マウントのオリジナルデザインを、3Dプリントした物を持っていますが、共振が出そうなので使っていません。 上のボードにスポンジで載せても水色のダンパーが揺れるので、要注意。 大きなPayloadを載せる前提なら、想定した荷重のダミーを載せて調整すると良いですね。 少し安定してくればAuto Tuningも有効ですが、AltHold で飛ばないと使えません。 欲を言えば、Pixhawk の搭載位置は、重心が好ましいです。"
Apr 14

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Jiro Hattori's Blog

Two hour and 12 minutes flight by PEM fuel cell

Posted on March 19, 2015 at 4:00am 18 Comments

This is really great accomplishment:-)

Montreal, Canada: EnergyOr Technologies Inc., a leading developer of advanced PEM fuel cell systems, recently demonstrated what are believed to be the world’s first fuel cell powered and longest ever duration multirotor VTOL UAV flights, flying for a record 2 hours, 12 minutes and 46 seconds.



Smartphone Case N

Posted on December 5, 2013 at 3:00pm 15 Comments

HONDA is introducing "Smartphone Case N" that has small six air bag to protect Smartphone in the case.

Sorry, the video is Japanese.  Followings are some essence;

The engineer is start development this case by his loss of his own smartphone, drop and damage.

He start drop test and found the critical height of damaging phone…


EMC Shielding for ArduCopter3.0

Posted on June 25, 2013 at 5:40am 37 Comments

The EMC shielding material reduce magnetic interference that is good to ArduCpoter3.0.

Measurement of magnetic interference becomes half by 60micron meter low-loss,high permeability nano-crystalline material.

Without magnetic shield…


How should we dealing with Li-ion Battery for flight safty?

Posted on January 17, 2013 at 2:55pm 16 Comments

As you know the Boeing 787 has been grounded by caught fire on the Li-ion battery.

It looks like Japanese battery may have some issues on this incident:-(

You might reminded some laptop PCs caught fire by its Li-ion battery, few years before.

It is ironic to the restriction of…


Comment Wall (6 comments)

At 5:27am on March 31, 2011, Whooper said…


What do you fly and is your field close to Tokyo? I'm located in Meguro and mainly into UAV aircraft, although just started to fly a KKmulticopter.



At 5:49am on March 31, 2011, Jiro Hattori said…

I'm living in Atsugi. It looks like lots of space to fly air craft in Atsugi. However, there are very few places to flay.

This is my main frustrated issue. You can visit my web site. It is some sort of language translation web site. http://aeroquad.at.webry.info/

At 6:23am on March 31, 2011,
Gary Mortimer
Thank you very much for helping me find the platform
At 7:50am on August 24, 2011,

Jiro, thanks for the suggestions on demonstrating the heli in Tokyo.  I might give that a try at the Tokyo Institute of Tech.  I guess the make fair is at the ookayama campus.  I'll ping you when I'm getting close to being ready..

At 1:41pm on November 25, 2014, Gary Elias Dimas Flores said…

Hi Jiro, I have an issue regarding the use of xbee with pixhawk, I'm using xbee as follows, 

but I´m still having problems. I write the next program to try send some data but I don't get any positive results.

#include <AP_Common.h>
#include <AP_Math.h>
#include <AP_Notify.h>
#include <AP_Param.h>
#include <AP_Progmem.h>
#include <AP_InertialSensor_MPU6000.h>
#include <AP_InertialSensor.h>
#include <AP_ADC_AnalogSource.h>
#include <AP_ADC.h>
#include <GCS_MAVLink.h> // Rediculous dependency to AP_InertialSensor_MPU6000
#include <DataFlash.h> // Rediculous dependency to AP_InertialSensor_MPU6000
#include <AP_GPS.h>

#include <AP_HAL.h>
#include <AP_HAL_AVR.h>
#include <AP_HAL_AVR_SITL.h>
#include <AP_HAL_PX4.h>
#include <AP_HAL_Empty.h>


AP_HAL::AnalogSource* ch;
AP_InertialSensor_MPU6000 _INERT; // MPU6050 accel/gyro chip

void setup (void) {
hal.uartA->begin(115200); // USB
hal.uartC->begin(57600); // RADIO

_INERT.init(AP_InertialSensor::COLD_START, AP_InertialSensor::RATE_100HZ);

void loop (void) {

hal.uartA->write("start \n");



Do you have an idea of what is happening?

Thank you in advance.


At 3:33pm on November 25, 2014, Jiro Hattori said…

Hi Gary

Do you have good communication through Mission Planner by your setup?

Please separate an issue for hardware or your software.


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