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Venus638FLPX serial problem

 by shimniok ¦  Sun May 27, 2012 10:55 pm ¦  Forum: GPS ¦  Topic: Venus638FLPX serial problem ¦  Replies: 3 ¦  Views: 2371

I've had my Venus 638FLPX for several months on my AVC robot with no problems. It was working yesterday just fine. Tonight I went to use it and discovered problems with serial comm. I get gibberish for any baud rates from 1200 thru 230400. This is on the PC using SFE 3.3V FTDI breakout. The robot is...

Venus638FLPX - won't start

 by shimniok ¦  Mon Mar 26, 2012 8:14 am ¦  Forum: SparkFun Product Questions ¦  Topic: Venus638FLPX - won't start ¦  Replies: 0 ¦  Views: 368

So this is weird. My Venus won't start under certain conditions. I'm not entirely sure why. Don't know if anyone's smart enough to figure this out :twisted: I have a Venus638FLPX breakout board ( GPS-11058 ). When I plug the Venus into a mini breadboard ( PRT-08800 ) and connect up a 3.3V FTDI break...

Re: AVC 2012?

 by shimniok ¦  Wed Mar 14, 2012 3:39 pm ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: AVC 2012? ¦  Replies: 6 ¦  Views: 4539

Well, I'm in! Scott, if you see this, check your facebook account for an invitation; I'm doing a robot demo for a few friends and their kids and at least one other AVC entrant will be there. Maybe you can bring your robot (or at least join us).

Michael

Re: AVC 2012?

 by shimniok ¦  Fri Jan 27, 2012 12:19 am ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: AVC 2012? ¦  Replies: 6 ¦  Views: 4539

Well... I'm on the waiting list, but still working on Data Bus. Getting close to doing some more field tests with the various improvements. I'll be chronicling the build again on my blog www.bot-thoughts.com for those interested. For all the slots that filled up in 24 hours, it sure is quiet out the...

Re: AVC 2012?

 by shimniok ¦  Sun Oct 09, 2011 10:03 pm ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: AVC 2012? ¦  Replies: 6 ¦  Views: 4539

Well... I for one am assuming so... I've already got some time and cash invested in Data Bus 2012...

Re: software arduino.exe problem don't want run (arduino22)

 by shimniok ¦  Mon Jun 06, 2011 9:53 pm ¦  Forum: Arduino ¦  Topic: software arduino.exe problem don't want run (arduino22) ¦  Replies: 5 ¦  Views: 1137

Run from the command line:

From Start menu, select Run

Type CMD in the text box and hit return

At the CMD shell prompt, cd to the location of Arduino exe (typically \program files\arduino\arduino-0022)

Watch what text output is generated, errors, etc., copy and paste here.

Michael

Re: Arduino Motorcycle Display - Power Interfacing Questions

 by shimniok ¦  Tue May 10, 2011 8:53 am ¦  Forum: Arduino ¦  Topic: Arduino Motorcycle Display - Power Interfacing Questions ¦  Replies: 11 ¦  Views: 4330

Current for LEDs is typically 20-30mA so your calc is probably right. FWIW, the two LDOs I'm familar with (NCP1117 and L4941, the latter comes in TO220 by the way) have input voltages well above 14V with no specific mention of a maximum rating for Vin-Vout. I don't see why you couldn't just use a LM...

Re: software arduino.exe problem don't want run (arduino22)

 by shimniok ¦  Tue May 10, 2011 8:23 am ¦  Forum: Arduino ¦  Topic: software arduino.exe problem don't want run (arduino22) ¦  Replies: 5 ¦  Views: 1137

Try running from the command line and see if there are any errors? You can always try downloading and reinstalling.

Michael

Re: Minibloq: Graphical programming environment for Arduino

 by shimniok ¦  Wed May 04, 2011 10:32 pm ¦  Forum: Arduino ¦  Topic: Minibloq: Graphical programming environment for Arduino ¦  Replies: 17 ¦  Views: 5314

For what it's worth I'm actually very interested in what you have to say about teaching kids programming and robotics. I'd previously mentored an FRC team (443) but lately have wanted to get involved in teaching younger kids, and possibly doing some kind of class to spark interest in robotics and te...

Re: AVC 2011 Recap Photos, Videos, and Descriptions

 by shimniok ¦  Tue May 03, 2011 10:29 am ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: AVC 2011 Recap Photos, Videos, and Descriptions ¦  Replies: 4 ¦  Views: 4369

Here's a nickle tour for Data Bus, the wall- and curb-seeking wheeled missile of doom:

http://www.bot-thoughts.com/2011/05/dat ... -tour.html

Michael

Re: AVC 2011 Recap Photos, Videos, and Descriptions

 by shimniok ¦  Mon May 02, 2011 10:31 pm ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: AVC 2011 Recap Photos, Videos, and Descriptions ¦  Replies: 4 ¦  Views: 4369

Here's a few pics on my blog... will post here again if I add more.

http://www.bot-thoughts.com/2011/04/avc ... tures.html

Michael

Re: TCM8230MD CMOS 640x480 Camera Interface

 by shimniok ¦  Mon May 02, 2011 9:18 pm ¦  Forum: SparkFun Product Questions ¦  Topic: TCM8230MD CMOS 640x480 Camera Interface ¦  Replies: 24 ¦  Views: 13968

Check the eagle files linked on this blog post that I ran across.

http://sigalrm.blogspot.com/2011/03/tcm ... akout.html

Hope this helps,

Michael

Re: Any AVC 2011 Build Logs?

 by shimniok ¦  Fri Apr 22, 2011 10:18 pm ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: Any AVC 2011 Build Logs? ¦  Replies: 34 ¦  Views: 11842

Last few nights were late ones... the nav is working better... I keep writing bugs into my code. Need to stop doing that :) No obstacle avoidance implemented. Just too many issues to wade through. I did a test run at a nearby parking lot... it wasn't great, but ... gotta run what ya brung, right? So...

Re: Any AVC 2011 Build Logs?

 by shimniok ¦  Wed Apr 20, 2011 1:15 am ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: Any AVC 2011 Build Logs? ¦  Replies: 34 ¦  Views: 11842

I'm having some rough times myself. Once again my code started hanging for no apparent reason... so that was about 4 hours lost ... instead of working on actual functionality. I've not tested at SFE yet. I guess I will 'test' on race day :) I have some new hypotheses explaining why my compass and AH...

Re: Any AVC 2011 Build Logs?

 by shimniok ¦  Mon Apr 04, 2011 12:38 am ¦  Forum: Sparkfun Promotions and Competitions ¦  Topic: Any AVC 2011 Build Logs? ¦  Replies: 34 ¦  Views: 11842

Wow, those videos looks great! I have no idea what the ping sensor's freq response range is but you might post over on parallax forums... one of the Parallax employees may be able to chime in. Surely the response range is more than ±3% ... but... ? Doppler effect. That's yet another detail I never c...