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556  Forum 2005-2010 (read only) / Bar Sport / Identify RFID tags on: August 09, 2009, 04:58:17 am
OK I've got some RFID tags that I would love to use with a reader.

Problem: I don't know what frequency they work on.

Assuming (at this stage) I can't ask the manufacturer, what can I do to work out what frequency they are?

Thanks

Alex

557  Forum 2005-2010 (read only) / Bar Sport / Re: How do you say "Solder"? on: June 18, 2009, 03:37:11 am
Quote
Gee, I don't know . . . “talk,” “walk,” “half,”, “calf”
Maybe we should ask the Colonel?

Just because there are a few examples of silent "L" doesn't mean ALL of them are... :-)

Also I would pronounce the L to some extent in all of those words... they certainly don't sound the same as if the L wasn't there at all, which is the case with the solder/sodder argument.

I put my soldering iron in it's hoLder, not it's hodder.

Anyways I'm happy for everyone to pronounce it however they want, just interested in how the L became silent
558  Forum 2005-2010 (read only) / Bar Sport / Re: How do you say "Solder"? on: June 17, 2009, 08:34:43 pm
Why do people think it's a silent "L" ????

sol-der

559  Forum 2005-2010 (read only) / Bar Sport / Any Australian APRS users out there? on: May 05, 2009, 12:24:13 am
Looking for an Aussie APRS user to collaborate on an amatuer high-altitude balloon project.

I'm trying to avoid the cost and effort of getting the appropriate licence.

Also willing to contribute to hardware costs.

Please get in touch if you are interested or know someone who is!

Thanks

trialex
560  Forum 2005-2010 (read only) / Bar Sport / Re: Futurlec...  legit or scam? on: April 22, 2009, 06:09:11 pm
Order placed 8th april, received it 23rd april.

That's my 5th order, never had a problem.
561  Forum 2005-2010 (read only) / Bar Sport / Re: Looking for projects. on: February 10, 2009, 03:42:38 pm
How-To: Make an RGB combination door lock on Hackaday

http://hackaday.com/2008/06/12/how-to-make-an-rgb-combination-door-lock-part-1/

562  Forum 2005-2010 (read only) / Bar Sport / Re: Arduino is Australia. Where to buy ? on: November 23, 2008, 09:17:45 pm
adafruit.net and sparkfun.com have reasonable shipping to australia. Of course the current exchange rate is a killer...
563  Forum 2005-2010 (read only) / Bar Sport / Re: off-the-shelf 12V 6A+ power supplies? on: December 08, 2008, 09:59:37 pm
Close, 5A:
http://jaycar.com.au/productView.asp?ID=MP3107&CATID=&keywords=12V+power+supply&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=

8A:
http://jaycar.com.au/productView.asp?ID=MP3121&CATID=&keywords=12V+power+supply&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=
564  Forum 2005-2010 (read only) / Bar Sport / Re: Buy through eBay or pay by PayPal on: September 30, 2008, 11:06:26 pm
Quote
Also, the ability to link to a bank account has been part of PayPal for as long as I can remember....

Linking to bank accounts only made it to paypal australia last year - I guess they probably roll out features to different countries at different times.

Before that, it kind of was a pain to set up a credit card, we don't have the same system of verification - for example we don't link credit cards to physical adresses, so paypal (before there was a paypal.com.au) kind of treated aussies like shady charachters (no convict jokes...)

Anyways in recently paypal have become more world-friendly, and a useful way to conduct business for hobbiests.
565  Forum 2005-2010 (read only) / Bar Sport / Re: Disc Segmentation on: September 02, 2008, 08:32:40 pm
I use Pro/E, but anything Pro/E can do Solidworks should be able to do something similar - look for a "fill" or "autofill" command
566  Forum 2005-2010 (read only) / Bar Sport / Re: Disc Segmentation on: September 01, 2008, 06:45:30 pm
I'm sure there is a mathematical way to lay it out, and it's probably not that hard. But I am super lazy, and I would just get my CAD program to fill the space equally. Let me know if you want me to do it for you.
567  Forum 2005-2010 (read only) / Bar Sport / Re: What digital camera to buy? on: June 25, 2008, 04:21:47 pm
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The old camera was a W80, and before that a W60.  It's been a very bad track record as far as how long these cameras last too.

Really... we've also got a W80 and that has been an excellent camera - no troubles over the year and a half or so that we have had it. "Beach" mode is funny though - everything comes out blue, even sand.
568  Forum 2005-2010 (read only) / Bar Sport / Re: What digital camera to buy? on: June 23, 2008, 07:21:55 pm
If you can compromise on something between a DSLR and point-and-shoot-compact, I can highly recommend Sony's H-series. I have a H9 (now superseded by H11) and it really is good. Great quality, and you just can't beat the 12x zoom that a larger body gives you. Has an "automatic" mode for point-and-shoot, turn the dial to adjust separately or together the apeture/ISO/shutter/EV. Uses memory stick pro-duo, not sure if that's the type of memory stick you have, or if you have the old memory sticks.

Only problem is there is no remote / external port (that I can find - let me know if anyone knows about it), so I don't think you can trigger the camera in any way besides pushing the button on the camera body.
569  Forum 2005-2010 (read only) / Bar Sport / Re: Arduino Robotics Project on: January 07, 2007, 04:40:01 pm
I always have the same problem - I love building up a robot form factor, but I can never come up with a really good idea to justify it's use.

One thing I think could be useful would be a mapping robot - let it go wild in a room, and when it's done download the data and have a detailed map of the floorplan of the room. Of course there are other robots out there that already do this using an array of sonar sensors but they all only give rough maps. I'm sure something using quadrature and dead reckoning could come up with something better if the problem of accumulating errors could be overcome.
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