Trossen Robotics Community

Dynamixel lighting?

Adrenalynn — Fri, 20 Nov 2009 22:27:46 GMT

>> going to have to take the bot apart

Naw, you don't need to take it all apart. Just unplug each servo from the chain, one at a time, and reset the ID. No reason to go disassembling it. I change my servo ID's more frequently than my mind, and that's sayin' something. ;)

The Ultimate Phoenix Thread

MSK Mech Commander — Fri, 20 Nov 2009 22:06:13 GMT

I've been trying to mix up the controls on the Phoenix for the PS2 controller but I need a technical reference manual. I can't seem to find the command codes for the PS2 joysticks. Help?:confused:

[Question(s)] Automatic Door Opener

Adam — Fri, 20 Nov 2009 17:35:08 GMT

Honestly, for a senior project, I would try to think of some other ideas before moving forward with this one. The whole "robot that gets me a drink" thing has become a cliche, I've never seen it done well, and I personally don't find it to be that interesting anyway.

There are so many interesting things that can be done with robotics technology.

[Question(s)] Indoor Navigation Solutions?

darkback2 — Fri, 20 Nov 2009 16:36:42 GMT

I was thinking about the X, Y grid...I would have it be the same for both X and Y.

[Project] Roz

Noog — Fri, 20 Nov 2009 16:33:16 GMT

Quote:

Originally Posted by JonHylands (Post 36199)

Here's what it looks like with feet:

I've glued a silicone pad to the bottom of each foot, so it doesn't slip-slide away.

- Jon

Hi Jon,

That is a great looking 'bot! I'm envious of the quick production time that the 3D printer has given you. Thank you for sharing your project with us.

Did you specifically choose not to instrument the feet with sensors (e.g. strain gauges or even just a simple contact sensor)?

Noog

[Project] Monster Truck Rover - Semi-teQ II

seesoe — Fri, 20 Nov 2009 03:55:41 GMT

here is the controller, the serial cable, and the rc outputs

im going to try and start building the frame this weekend so stay tuned:)

Attached Thumbnails

[Project] Accelerometer Controlled Marble Maze

Alex — Thu, 19 Nov 2009 17:38:51 GMT

Accelerometers are definitely a great way to introduce kids to robotics. Nice work Dan! I'm with Adam too, nice touch with the gumball prize:)

Too bad I missed the demo @ iHobby:(

[Contest Entry] Home Built Wireless IP Executor

tonald — Thu, 19 Nov 2009 13:51:21 GMT

Here is my latest video.

MDD motor controller:

32 channels servo motors controlling
4 DC motors controlling.
2 stepping motor controlling.
8 channel ADC
PC side software

MDD Wireless interface type 1:

2.4Ghz transreceiver
used for wireless UART command transmission.

Videos are below:

[News/Announcement] March 6th - Central Illinois Robotics Bot Brawl

tobor — Thu, 19 Nov 2009 01:10:21 GMT

Quote:

Do you have a u-18 for mini sumo?

In the past we've tried dividing our sumo competitions into a regular and "advanced" tournament but it's never worked very well. Usually the advanced tournaments would end up with only a few entries which made for a brief and less than exciting competition. We've discussed alternate methods of separating advanced and beginner entries but we could never find an effective criteria.

Another way to help beginners is by hosting different classes of sumo. Our club offers three types of sumo competitions ranging from LEGO to 3kg. We encourage our advanced competitors to strive for the more challenging events which helps beginners have a chance to succeed in the other events.

Dan Toborowski
President
Central Illinois Robotics Club
www.circ.mtco.com

Introduce yourself!

Formori — Thu, 19 Nov 2009 00:27:13 GMT

Hello all,

My name is Ryan, and I've been reading some of the forums and tutorials here for a while, but now feel like I've got something worth contributing. I've been into electronics since I was young, taking apart all of my toys that had any electronics, and even some that didn't :). I'm currently a student at the College of the North Atlantic in Telecommunications Engineering and going on to finish an Electrical or Mech Engineering degree next year. I've been playing around with robotics, electronics, RC, and modelling more in depth in the past few years, and now have finally gotten some major projects underway. My two current major projects are a self-balancing platform that is remotely controlled and a semi-autonomous hexapod, both are somewhere in between design and build phases right now :p.

Outside of robots, I enjoy camping, hiking, climbing, photography and model building. I'm currently building a model Grammy trophy for a friend of mine's birthday, she's a big music lover, so it'll be an interesting gift.

I'll be, hopefully, posting and asking questions soon. And if anyone needs info about Nitro RC or modelling techniques, just send me a PM and I'll be happy to help.

Knee Servos (MANOIAT01)

Tyberius — Wed, 18 Nov 2009 21:05:36 GMT

Quote:

Originally Posted by nagmier (Post 36182)

I was under the impression there were no upgrade as such available, I am not familiar with this particular group of parts. That would seem to be the best solution though maybe not the cheapest..

2nd link in her original post is a link to an upgraded, metal gear version. These servos are spendy though ;)

New camera find, and interest must be building...

nagmier — Wed, 18 Nov 2009 03:10:30 GMT

Keep us posted Lynn I have been putting off buying a trendnet since my ROV has a WIFI Connection to its PC but I'd be interested in something in a couple months

[Project] Mola Project

Charles — Wed, 18 Nov 2009 03:00:47 GMT

Sorry for the delay in replying. I've been very busy lately with NaNoWriter. Anyway here's an updated part list from all the recommendations I've been provided and the research I've done:

(2) Arduino Pro Mini 5V/16MHz
(2) SFE Polymer Lithium Ion Batteries - 3.7V 860mAh
(2) Pololu 5V Boost Regulator NCP1402
(1) 5.5Ft Weather Balloon
(1) FTDI TTL -232R-3V3 USB - TTL Level Serial Converter Cable
(1) Dynalloy Flexinol Wire 0.005"
(4) SFE Concave Button - Black
(2) XBee 1mW Communication Module
(1) Phidgets Mini Joystick Sensor
(1) Right Angle Pins
(6) PNP Bipolar Silcon Transistor
(2) Dimension Engineering 3.3V 1A Switching Voltage Regulator
Wooden Poles 1/8"
Helium
Wire

I've downloaded the Eagle software and I'll start of the layout tomorrow at school.

[Project] Second Amendment � Quad Mech

Upgrayd — Wed, 18 Nov 2009 02:43:57 GMT

11/17/09

Tonight I remade my previous camera mount parts in aluminum. The back panel now matches the lynxmotion SES brackets to easily mount to the pan and tilt turret assembly.

Bioloid Boards Again

siempre.aprendiendo — Tue, 17 Nov 2009 23:15:46 GMT

Quote:

Originally Posted by JonHylands (Post 35611)

In any case, it means there won't be a Bioloid wifi board for at least a month or two, assuming they come through on their promise on the UART speed, and the latency is tolerable.

- Jon

Quote:

Originally Posted by JonHylands (Post 36125)

So, my "new" wifi module (from ConnectOne) has passed both tests - I can hook it up to my router and get an IP address, and I can talk to it over the serial port (using an FT232) at 1 Mbps.

I'm going to start laying out a new board for this, but it looks like the full speed wifi board is going to become a reality.

- Jon

Wow. A wifi board for Bioloid at 1 Mbps would be amazing :robotsurprised:

Looking for a good camera? - Trendnet 110 wireless cam & teardown

gdubb2 — Tue, 17 Nov 2009 18:53:58 GMT

My camera is all mounted, but here are some rough measurements.

Main board is about 85mm X 63mm. The camera board mounts to the main board, but is spaced out about 5mm from the front of the main board. The power supply board is about 60mm wide X 45mm deep. As you can tell from the pictures on page 1 of this thread, the camera board is odd shaped but it basically must mount to the main board. The power supply could be relocated, but the pins are not friendly.

I just removed mine from the case to save weight and made new mounts from styrene.

Comment: To avoid confusion, I started with the Airlink camera but changed to the Trendnet. These measurements are for the Trendnet.

Good luck
Gary

Outline- Preparation for Competition Readiness

Tyberius — Tue, 17 Nov 2009 15:40:26 GMT

Heads up guys, now less than 6 months until Robogames in April. Get your butts into gear if you plan on competing in 2010.

[Project] Vulcan 5: fire fighting robot

sthmck — Tue, 17 Nov 2009 03:36:01 GMT

Here is a little video of it running around.
">" type="application/x-shockwave-flash" width="425" height="350">

I am not using any sensors in this one, just testing the motors. Earlier today we had it running around in the maze with three ir sensors and it was crazy fast. We had to back it down a little.

Mech weapons

rebel — Mon, 16 Nov 2009 17:34:25 GMT

Thanks for info :D

New and used AX-12+ for sale.

librab103 — Mon, 16 Nov 2009 07:16:00 GMT

I have 9x AX-12+ that I would like to sell. 2 of them are new in box and would like to sell them at $40 or best offer. The other 7 are like new and only have been played with for a little bit of time. Little to no wear on the motors. Will also include all hardware and cable. Would like to sell these for $35 or best offer. If you would like to buy all 9, I will sell them for $300 + $10 for S/H. Paypal is the preferred method of payment. Send me a pm or leave a reply.

Update: Just have the 7 like-new AX-12+ left. Come on guys, make me some offers. I would love for somebody to find a use for them instead of them laying in a box!

Update: SOLD

Autonomous Mech Thread

lnxfergy — Sun, 15 Nov 2009 21:53:29 GMT

I'm hoping to have the final specs for the 2010 scoring system up around Christmas/New Years. We're still nailing down details on the actual scoring plates, and I'm working on a new scoring program for the central machine.

-Fergs

Parallax Propeller--> Ax-12 circuit help

MikeG — Sun, 15 Nov 2009 19:37:52 GMT

Yes, updates will be published at http://www.agaverobotics.com/product...?node=products

[Project] Mech-Zeus/ Axon

rebel — Sun, 15 Nov 2009 19:01:04 GMT

A robot driving a robot, nice :P

Shadowcat

rebel — Sun, 15 Nov 2009 18:58:52 GMT

Here I had to make new upper leg peices, i like the clear poly. I also had to drill out the metal servo horns to fit 4-40s. The regular ones where stripping and seemed weak.

Attached Thumbnails

[Question(s)] Best robotics Language?

Chench — Sun, 15 Nov 2009 18:34:58 GMT

Hi, thanks.
Its a Samsung Omnia II. Some features which seem to be obviously useful are
- a three axes accelerometer
- GPS
- a compass
- a light level sensor
However there is also
- a 'proximity sensor' - presumably IR
- two cameras
- a touchscreen, possibly useful for bump sensors
I've also seen an application which allowed some kind of sonic ranging using the built in speaker and microphone.
I suppose other sensors could be linked to the microcontroller and readings reported back to the phone over Bluetooth.
Sam