RoboSavvy Forum

Bioloid (20 DOF) with N900 head

2012-02-16T09:16:55+01:00

Thanks for proviing the photos! I guess the idea is awesome!
What materials did you use to make that nice cut bended(?) plastic shell ?

Statistics: Posted by Liya08 — Thu Feb 16, 2012 9:16 am

Bioloid (20 DOF) with N900 head

2011-10-26T02:44:11+01:00

Charming robot toys and if have a chance I'LL buy one too!

Statistics: Posted by shenglu — Wed Oct 26, 2011 2:44 am

Bioloid (20 DOF) with N900 head

2011-09-10T10:04:41+01:00

.I recently came across your article and have been reading along.
I want to express my admiration of your writing skill and ability to make readers read from the beginning to the end.
I would like to read newer posts and to share my thoughts with you.

Statistics: Posted by peeer — Sat Sep 10, 2011 10:04 am

Mobile phone holder

2011-08-23T09:22:40+01:00

The shell holding the N900 is 2mm carbon fiber. I used memory carbon, which can be formed in 2 dimensions after heating up.

The upper part of the mobile phone is just covered with a (carbon pattern) adhesive film, to match the colour of the actual bracket.

Statistics: Posted by sascha — Tue Aug 23, 2011 9:22 am

Bioloid (20 DOF) with N900 head

2011-08-22T23:26:54+01:00

Great work! thanks for posting.
What materials did you use to make that nice cut bended(?) plastic shell ?

btw: if you need more better closed-loop servo response rates than 25/sec for 20 servos, consider alternative firmware for the AX12 (such as Morpheus)

Statistics: Posted by limor — Mon Aug 22, 2011 11:26 pm

Re: Foot photos

2011-08-22T14:09:28+01:00

Salut Sascha,
Merci pour les photos ,je vais faire le montage

Torne

Statistics: Posted by torne — Mon Aug 22, 2011 2:09 pm

Foot photos

2011-08-21T21:11:03+01:00

Hi torne,

here are some close-up shots of the lipo foots.

http://robosavvy.com/Builders/sascha/photo-foot01.JPG
http://robosavvy.com/Builders/sascha/photo-foot02.JPG
http://robosavvy.com/Builders/sascha/photo-foot03.JPG

Mounting was quite easy, no problem a small drill can't solve.

Regards, Sascha

Statistics: Posted by sascha — Sun Aug 21, 2011 9:11 pm

Re: Updated

2011-08-08T10:57:35+01:00

Salut Sascha,
bonne idée les batterie dans les pieds.
j'aurai voulu savoir si le robot arrive a marcher sans difficultées
avec le poids des batteries.
pourriez vous mettre une ou deux photos de votre montage des pieds.
Merci

Statistics: Posted by torne — Mon Aug 08, 2011 10:57 am

Bioloid (20 DOF) with N900 head

2011-08-05T22:15:22+01:00

I think the answer is give earlier in the thread.

BTW: The N900 is connected to the USB to Dynanixel adapter, but I removed the Serial portion, since I don't need it.

Statistics: Posted by i-Bot — Fri Aug 05, 2011 10:15 pm

Bioloid (20 DOF) with N900 head

2011-08-05T22:02:46+01:00

Hey, briliant idea
Did you connect servos directly to the N900? How?

Statistics: Posted by danialbehzadi — Fri Aug 05, 2011 10:02 pm

Updated

2011-04-05T20:45:21+01:00

Hi, I updated my mobile phone robot. The batteries were moved to the feet and the torso was updated. Phone has been rotated compared to initial design.

Following software runs now on the N900:
- ROS
- OpenCV
- gstreamer (640x480 H.264)
- fcam (used intitially for autofocus etc)
- VNC / SSH (for remote access)

I wrote an ROS node for the N900 accelerometer and played a little bit with OpenCV. The face detection speed on the N900 was a bit disappointing though (0.25 fps) and I decided to stream the video to my PC (using gstreamer for which exists an ROS integration). Streaming causes only about 20% CPU utilization (640x480 resolution / H.264 / 1500 KB/s) on the N900.
Less complex tasks like color based tracking should be able to run on the robot itself with acceptable speed.

Next thing I will work on is an URDF model for ROS.

Here are some pics:

Statistics: Posted by sascha — Tue Apr 05, 2011 8:45 pm

Bioloid (20 DOF) with N900 head

2011-02-09T21:49:52+01:00

Hi Mohit,

Version 0.1 can be found here.
http://robosavvy.com/Builders/sascha/DynaBot.zip

Statistics: Posted by sascha — Wed Feb 09, 2011 9:49 pm

Usb2Dynamixel Controlled Ax12+

2011-02-06T09:53:08+01:00

Hi Sacha,
Can you please share your pc code with me. I want to control all AX12+ with Usb2Dynamixel.
Please Help.
Thanks Cheers.

Statistics: Posted by MOHIT JINDAL — Sun Feb 06, 2011 9:53 am

Bioloid (20 DOF) with N900 head

2011-01-04T19:32:43+01:00

Yup, thanks for the info, 2ms, that's a nice quick ping, compared to that I'm wading through treacle with my 15ms ping on windoze.

Statistics: Posted by Fraser — Tue Jan 04, 2011 7:32 pm

Re: FTDI latency

2011-01-04T16:08:59+01:00

sascha wrote:
Nokia-N900-51-1:~# echo 4 >> /sys/devices/platform/musb_hdrc/usb1/1-1/1-1:1.0/ttyUSB0/latency_timer

The lowest value, which improved the communication speed was 2ms.

N900 = 500 ping per second

Very nice! Thanks for looking into this and posting it. It should be useful for my Linux based controller too.

Statistics: Posted by billyzelsnack — Tue Jan 04, 2011 4:08 pm