Bolt on Replacement for Standard GYRO 6DOF

[pikaj00]

has anyone checked out this new toy for bioloid.. plugs into the servo bus and has 3axis gyro and 3axis accelerometer.
i got mine comeing.

http://www.robotshop.ca/huv-robotics-bi ... ule-2.html

im in canada so this is the site i use to get stuff but im sure its out everywhere now.

[27Loco]

Compatible with the CM-5 controller

Hm...no support for CM-510?

Why didn't you take the AX-S20 from ROBOTIS?

http://support.robotis.com/en/product/a ... ax_s20.htm

[billyzelsnack]

That's Jon Hylands IMU. It's been around for awhile. I have two of them! Here's something I made with it awhile back..

phpBB [media]

It'll work just fine with a CM-510.

[27Loco]

Wow thats great idea! A mini segway

[Fritzoid]

Ah, but where can I purchase an AX-S20?

It'll work just fine with a CM-510.

I wouldn't make that assumption.

[FabinovX]

Actually, AX-S20 is not available for selling and you won't get one except if you're lucky as Uncle Bob was

i think the 6 IMU from Jon Hylands is full compatible with cm510 because it works as any dynamixel actuator connected to the bus.
it has a 100Hz update rate and can be accessed the same way.
here is the doc link :
http://www.bioloid.info/tiki/tiki-index.php?page=6-Axis+Bus+IMU+Documentation

Cheers
FabinovX

[pikaj00]

i asked the guys at the robotshop here in canada and it is supposed to be working fine with the cm-510.. i thinks it is pretty cool as it just swaps out with the old one.

[Fritzoid]

kaj00 wrote...

i asked the guys at the robotshop here in canada and it is supposed to be working fine with the cm-510..

Supposed to be working implies that they have not actually tested the configuration themselves. My experience with other HUV boards and the CM-510 suggest that a firmware upgrade will be necessary. Once that's accomplished it should be an excellent solution.

FaninovX wrote...

Actually, AX-S20 is not available for selling

And the ADC ports are too noisy to be useful, which is why we need an IMU.

Robotis included the AX-S20 in the Premium kits that went out to reviewers in the summer of 2009. It was a last minute decision to replace those units with the gyro sensor we all got. Supposedly because the compass unit was too noisy. Seems like a bad decision in retrospect.

[JonHylands]

Its pretty sad that Robotis doesn't bother to make their new software compatible with 3rd party bus devices - I thought that was the whole point to having a nice bus like that.

As an aside, I'm about to start working on a slightly new version of the 6-axis IMU that should provide stabilized pitch and roll values (with no drift). I finally found some filtering software that will run on the ATmega168, so once I incorporate that, and make a few changes to the sensor board layout, it should be much better for helping with balance.

- Jon