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Great stuff as always Zenta! PS you're on the front page of engadget :-) .

Hey guys, just a quick question out of interest: -
There is an "ArbotiX+" defined in the arduino environment after installing the ArbotiX stuff. It is defined in boards.txt as using the Atmega1280....

Very impressive! I like how it is designed to do something out in the real (and messy!) world. Have you set in loose in a garden or field yet? Also the systems for marking the ground and planting the...

Spent several hours this weekend on re-organising the code. This has added absolutely no functionality at all but it will make it a lot easier to do interesting things in future (: . I have had a...

Hey, looks promising! I think there is a potential to save a lot of weight by using this mechanism as it eliminates the need for as many DOF. I saw this video a few months ago which impressed me with...

Hi guys,
Finally got back to this project and did a bit of work. I started using the Maestro speed commands to control the rate at which the servos move to their new position. This helped a lot with...

Well the weather has been too nice to do much robotics recently. Perfect for r/c helicopter flying though :) . Anyway I have made some progress since my last update.

- Altered the code for the...

Hmm, I'm getting confused now. . . I find it a lot easier thinking in terms of coulombs rather than volts. A coulomb is the amount of charge that moves when an amp flows for a second, so it's...

Sounds pretty cool. Does the phone have a hardware serial port available? If it does, you should be able to convert to half-duplex and talk directly to the Ax-12 servos. If not, you'll need to use a...

Tyberius,
I think that should be "A discharge", "42 A" and "84 A", rather than Ah.
A = amps, unit of current
Ah = amps x time, unit of charge, or a stand-in for energy (i.e capacity)when voltage...

It might well do . . . Sounds like your project and Fergs' comms code would pretty much cover it. I'd like to be able to customise it to use the particular sensors / outputs I needed, but with it...

Actually it could work - some PDA's do support USB host - but I'd definately have a look on the internet to see if your model has host functionality before doing any spending.

Roborealm also has a pretty comprehensive API for running it on a remote PC using t'Internet/LAN if 15 fps wont do the business. Just to be clear altwolf - is that the issue with the Nao humanoid on...

Sounds good!

Yes, I know, but you are limited to reading analog and digital pins. You couldn't, for example, read pulse widths, read/write serial communications or i2c, control r/c servos etc. I'm sure it'd be...

Ah I see. I haven't played with an Arduino so I'm not completely clued up on it. Just out of interest, do you think an Arduino would make a decent sensor server on the AX-12 bus? I.e. read a few...

I'm pretty sure the Arduino can do software serial on any pin though, up to 9600 baud or something. But the ArbotiX seems to be a pretty much ready made controller for all the Robotis servos, in that...

I'm finding it a bit hard to follow the notation you're using, but I think I can see how you're going about it.
If you assume the corner legs are always offset by 60 degrees, will you be able to do...

A fine brood of robots you have Zenta. I've always wondered how you managed to do so many simultaneous movements eg. in your A-pod videos. Now I know, that controller is ingenious. I'm looking...

Quick update:
The Pololu Maestro 24 turned up in the post today (or yesterday; had to pay VAT on it though :( ). It's a lot more compact than the SD21!

...

I've read a few stories of FPV planes using 2.4GHz video cameras getting shot down by WiFi. I think 900 MHz video transmitters are also pretty popular as they tend to suffer less from this sort of...

Sounds good! So you work out the local rotation the global rotation produces, then do the rotation equations/matrices to local coordinates, and then convert the rotated coordinates back to global?

Ok, I got it walking today. I still need to get the wiring sorted out as it barely fits in the body and I need to extend another three servo cables. I also haven't thought about where the battery is...

All in good time :). For now here's some more pics. The legs are mounted up so you can see roughly how it's going to look. I still have to centre all the servos though. I've got a graphical (Windows...

I've actually got the basics pretty much nailed down on the IK side of things. Most of the work was in getting the gait and rotation equations equations worked out, but they appear to be working now....

I became interested in hexapods after seeing Matt Denton's MSR-01 and Zenta's A-pod and Phoenix. I'm studying engineering so I decided to put some of the maths to use and write my own hexapod control...

Cool, looking forward to that!

Is that the same hex that was carrying a video camera in the botjunkie video? i'd love to see some robot's eye footage of the action.

iBot, that was the conclusion I had come to, I'm going to look into the using the flow control lines.
I think maybe your transistorbcircuit would be the easier route to go down, Mike, as it avoids...

Thanks for your advice.
The Bluesmirf acts as a serial 'pipe' so hopefully I won't need a micro in between. Shorting the Rx/Tx lines is the method I use to test the Bluesmirf but I'm not sure if...

Hi guys,
I wondered if anyone had experience connecting a Bluesmirf bluetooth serial module directly to the AX-12 bus. I know that the CM5 controller is able to take commands over serial but I would...

Great work. The movements are really refined, like the mechanics. Roughly how long does it to process the IK, rotation functions etc. for each cycle?

Haha, never gets old for me. I'm trying to get hexapod code working just now, and A-pod is very inspiring.
Awesome, can't wait to see it.

Zenta is very modest, but this definately belongs here.

http://www.youtube.com/watch?v=0jyBiECoS3Q

I've had success using a phone to talk to a Picaxe microcontroller via a Bluesmirf. Its on my blog here. I've seen a few other projects doing this too - Miss Alignment, for example.
Are you planning...

+1 on Lets Make Robots. Have you seen their start here robot? http://letsmakerobots.com/start . That's what really got me interested in robotics last year. You can get into altering the robot's...

If you have an Intel Mac (one of the newer models) you can install Windows along with Mac OS via Bootcamp. Thats what I use for Roborealm, Visual Studio etc.

Sweet. How do does the iphone talk to the robot?

Haha I have my moments. Credit goes to Wimo's creator though, he gave me the idea. I'm actually working on a somewhat similar project myself and I'm just trying to get the bluetooth working now. I...

Hi there, I think your project is amazing and you guys obviously have a great deal of knowledge and experience to be able to modify the phone to such an extent. I'm attempting a somewhat similar...