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Post by Dingo on Sept 9, 2005 20:38:03 GMT 10
news.bbc.co.uk/1/hi/health/4225896.stmInteresting article (but little detail) on a new robotic hand from the University of Southampton. Designed to be a prosthetic limb (one step closer to Luke Skywalker's doctor's prosthetics )
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Post by Dingo on Aug 24, 2005 11:00:13 GMT 10
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Post by Dingo on Jul 29, 2005 10:14:37 GMT 10
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Post by Dingo on Jul 18, 2005 22:09:54 GMT 10
Also look at line following circuits. You really just need a couple of LDR (light dependant resistors) and a method of comparing the one with the strongest voltage. I simple comparator circuit wold work (again google line-follower bots for this) or if you want to be tricky you could do it in software in a microcontroller. I always seem to prefer the microcontroller way, at least I can dump some diagnostics to a serial port on a pc and see what is going on and how to tweak it. Of course for a simple thing like this that would be overkill but would allow more flexibility. Look at www.pickaxe.co.uk if you want to go that path.
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Post by Dingo on Jul 18, 2005 22:12:47 GMT 10
What about scaling back a bit and going with a robust wireless protocol running on a 433MHz link? Might be easier to "roll your own" than reverse engineer USB drivers. I love the ones Oatley sell for ~$32. Remeber to make your protocol efficient, use every last byte and you won't need lots of speed
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Post by Dingo on Jun 24, 2005 22:22:11 GMT 10
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Post by Dingo on Jun 9, 2005 21:42:49 GMT 10
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Post by Dingo on Jun 4, 2005 15:39:41 GMT 10
A new site (to me at least) that is the best resource I've seen sofar on the net for circuit diagrams. discovercircuits.com/list.htmLots of links and a nice search engine and nice categories. Enjoy.
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Post by Dingo on Jun 4, 2005 15:37:53 GMT 10
Sorry about the fact the new forum requires more info (DOB and activation etc). It is not something I have control over, thankfully once done it is only needed to be done once
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Post by Dingo on Jul 19, 2005 16:48:27 GMT 10
Ooops! Sorry, I totally missed it.
I've been uber busy lately, quit my job to study (7 subjects in 8 weeks!)
I've replied to your email
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Post by Dingo on Apr 3, 2005 18:24:33 GMT 10
Hey everyone, sorry for the lack of updates recently. I just started a new job and 9-5 plus everything else doesn''t leave a lot of time for everything else (at least not when you start a new job)
Stil post any request etc and I'll try and fit them in once I've settle in with my new job
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Post by Dingo on Feb 24, 2005 8:27:08 GMT 10
Here are two general databases of circuits that might have what you are after. www.uoguelph.ca/~antoon/circ/circuits.htmwww.commlinx.com.au/schematics.htmI've also personally built FM transmitter kits from Oatley Elevtronics. www.oatleyelectronics.com/kits/default.html. It might not be what you are after but the one kit I built cuold take inout from a microphone but I modified it so it took input from a 3.5 stereo plug instead. I generally have have found Oatley to be realistic in their descriptions of their kits (signal strength, range etc) Also remember different countries have different regulations when it comes to allowable unlicensed strengths of radio transmittions. If you can take the data directly from it's source and initially tramsit it at a higher power that is going to be easier than transmitting the signal and build complex items to receive and transmit at the same time an incoming signal. BTW what frequency are talking about and what distance do you need? What is the source? and have you tried using a different type of Atenna on the receiver?
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Post by Dingo on Jan 26, 2005 18:58:56 GMT 10
This is what I want for next christmas. That yappy dog next door might think twice before starting a 3 hour yap-fest www.news.com.au/story/0,10117,12044770-13762,00.html
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Post by Dingo on Jan 25, 2005 17:42:28 GMT 10
I just got the last parts to start my mp3 project.
Will keep you all posted
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Post by Dingo on Nov 15, 2004 18:30:47 GMT 10
Recently I've been in the market for some digital scales.
Well having looked everywhere I could think of I finally found a good set.
Big W currently have a set for AUD$30. It is pretty much standard fair -runs on 2xAA, 1gram accuracy, tare ability and has a nice metal top. Also can measure in ounces
This is cheaper than anything I've found on eBay or any other source.
Anyway, if you need or want a set of cheap decent digtal scales now is time to go to Big W.
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