Older blog entries for robotvibes (starting at number 32)

Projects Galore

Allo,

I’ve been working on several projects since my last real post. It’s overdue for an update, and it has certainly been interesting.  I had setup a CVS Server, to house my software projects. However, since I’ve been using SVN at work, and that has been the evolution from CVS, or maybe GitHub.  So I have been setting up a remote SVN Server for my robotics and other project codes. The server has been setting up, but been playing around with hardening the Server (ie. Firewall, etc.).  I’m still playing around with the settings, and testing, but I’m almost there, and will be fully functional real soon.

I have been experimenting with the GPS Module I have acquired, and the sensors for Max (ie. Ultrasonic/IR).  It has been fun.  I’ve also been experimenting with the Odometry sensors, on a test jig, and tuning the ccts.  Some other experiments are with Linux, and Android as they may apply to Robotics.

I have also created a couple of Arduino boards, and playing around with how small I can build it. If I have some sort of SMD or QFN Package, that would be cool. It’s fun, and more like a challenge, but…been there, done that. So maybe I’ll create a PCB prototype, or just modify my prototype AVR board to accommodate the Arduino design. You can check my latest prototypes in the HERE.

The Sun Bots Site is being redesigned, and will also have more updated pictures and info, pertaining to the latest, of the latest…There are a few features in mind, and some new directions I want to take the group/club, but we’ll see…

At The Learned Nerd (TLN) Makerspace, we are looking into working on some other projects, including Guitar Amp, Arduino projects, Odometry, Metal Detectors, and lots more.

Sensor Fusion, Machine Learning, Algorithms, AI, Robotics for several new applications, etc…There are lots more in the works, but that’s all for now. I will update again soon…ABCYA!  Hope you’ll come back soon…y’here?

Syndicated 2011-11-22 08:06:48 from Cyb3rnetx

Max: quick pic

Here’s a pic from my phone of Max as it is now. Small pic, but I’ll add some more, better pics soon. Enjoy!

 

Syndicated 2011-10-02 18:00:30 from Cyb3rnetx

Max: Wiring & board placement

I rewired and relocated the motor controller and the micro board. Now all the boards are off the base platform and mounted on the frame scaffolding. This is a much cleaner arrangement and frees up some space for the batteries.
There are a couple more changes to do, so I’ll get to it, and make some more progress.
More updates coming soon.

Posted from WordPress for Android

Syndicated 2011-07-01 17:35:33 from Cyb3rnetx

Sensors for Max

I’ve mounted the IR and US Sensors, and have done some coding, to get the data. The data is being streamed via the UART, but that may go away, or be used mainly for debugging telemetry data.  I will be working on the control logic soon, once I build the data stream correctly.

The sensors that are mounted, will be exposed through the body of the robot. I just need to make the measurements, and make cut out the openings.

The sensors are on lower front (IR), side (US), and another on the top front (US) of the body. The top front, I am still trying to decide if I want it to incline, be on some type of motorized tilt, to scan up and down/left and right.

I will update again soon…

-Kevin

 

Syndicated 2011-06-22 01:02:21 from Cyb3rnetx

Max Upgrades & Improvements

I have changed up the tubing stand-offs that cover the threaded rods on Max.

Also, some “scaffolding” have been added where the different components are mounted, such as the sensors and cct boards.

A new power regulator was also finished and added which improved the power issues.

So now Max is running nice. Some adjustments to the speed was needed for motion tests.

Will have the sensors connected and working soon. Stay tuned for new pics and more updates.

Posted from WordPress for Android

Syndicated 2011-06-03 00:27:00 from Cyb3rnetx

Max’s additions

I’ve added a 12v battery to Max to power the additional modules. Also added a nice blue light strip, for cool visual effects. Pics to follow soon, so stay tuned.

Posted from WordPress for Android

Syndicated 2011-05-05 00:47:40 from Cyb3rnetx

UltraMega: Debugged/Fixed

For UltraMega, I fixed some sensor wiring issues, and debugged the motor control code.  It’s now in working order.

So now, 2 IR sensors mounted on the front are working, which is sufficient.  So when left or right sensor is triggered, the appropriate evasive behavior is invoked.  So if the left sensor is triggered, Mega backs away from the left. And if the right sensor is triggered, Mega backs away from the right.  Just some simple maneuvers to test.   The previous avoidance code will also be reviewed, and rolled in.

Next will be looking at the odometry sensors, to make sure everything is working properly.  Will update again soon.

Syndicated 2011-01-19 06:58:16 from Cyb3rnetx

Speakjet module

I am finishing up the speakjet project. I just have a few additions to make, and then test it out on a regular AVR, and then the Arduino.  It will be good to hear it speak, and make sound fx.

Will update again soon…

Syndicated 2011-01-15 22:16:31 from Cyb3rnetx

testing social plugins

I am testing out a few social nw plugins…

Syndicated 2010-11-21 05:16:08 from Cyb3rnetx

Max progress

I’ve made some good progress since my last post. I’ve finally screwed down the motor driver, encoder, micro boards, and also secured the batteries and power strip.

The XBee Wireless Board was is also attached, and seems to work pretty well. However, I’ve disconnected the power for now, since it was drawing too much current. I’ve since, built another 5volt power supply for it, and will work on another in the next few days for other boards.  It now contains, some extra protection, and a heatsink, and seems to work pretty good so far. See the pic…

Power board

Power board

I’m still trying to get the odometry working properly, but it should be too bad…too much a perfectionist I suppose…It has a few quirks to it, so it’s justified right now…

I’ve also added a small canopy to Max, as shown in the pictures below. This is the top of a garbage bin, and the small piece of the rim is removed. This allows the canopy to sit more or less, flush with the chassis base (Lexan). The bin will be cut down to form the lower part of the torso of Max’s body. I plan to build the an upper portion where a shoulder, arms, etc. would be, but for now, lots of work on the lower torso. Once I have the LTorso cut down, I’ll add the treaded rods, and it’ll be the frame to add the internal structure…like a skeleton.

Max with the electronic guts showing

Max with the electronic guts showing

Max with the Canopy and Lower Torso.

Max with the Canopy and Lower Torso.

Max with Torso (needs to be cut down)

Max with Torso (needs to be cut down)

I will be adding some sensors to this LTorso project, such as ULTRAsonic, and IR sensors, a “off-cliff” detector, and also a bump skirt, which protects and the chassis and objects in the room from damage.

Currently Mega and Max have demo code, for doing some motion control tests, open loop. But will be working adding better code. max has sensors, and I’m working on getting one of them working better…stupid wiring issue.

I will add these and other pics to the gallery. I will update again soon.

Syndicated 2010-11-05 01:48:34 from Cyb3rnetx

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