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826  Forum 2005-2010 (read only) / Bar Sport / Need a thermal fuse on: May 11, 2009, 07:06:33 pm
Does anyone know where I can get a thermal fuse in small (single unit?) quantities at decent shipping prices?

The blown fuse is marked 216 degrees C, 10 Amp, 250V.  And it has the part numbers "SF214E" and "C0655".  

Digikey has one that matches the temperature, current, and voltage, and it's only 34 cents, but you have to buy 1000.

Thanks.
827  Forum 2005-2010 (read only) / Bar Sport / Re: Circuit Design Aesthetics on: February 12, 2009, 09:36:03 am
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A spot of market research then, if you don't mind...

One simple project I have finished on a breadboard right now I'm looking to finish nicely is a wireless trivial buzzer receiver.  Hardwarewise, it's an IR receiver, an RGB LED, a piezo beeper, and batteries.   When it receives an IR code, it lights the RGB a colour depending on the code, sounds the buzzer for a second, delays several more seconds and then turns off the LED and waits for a new IR code.  

For the enclosure I want as small a form factor as possble, somewhere to mount the IR receiver with as wide a viewing angle as possible, and somewhere to mount the LED with a diffuser.  At the moment I'm looking at a very over-sized project box which makes the LED look dinky and I still don't know what to do about the IR receiver.

As far as paying, I am prepared to, but it is a one-off project so I wouldn't want something with lots of upfront fees and that really limits the budget.
828  Forum 2005-2010 (read only) / Bar Sport / Re: Circuit Design Aesthetics on: February 09, 2009, 03:33:32 pm
My bigger issue is enclosure aesthetics.  I can't get my finished projects to look good.
829  Forum 2005-2010 (read only) / Bar Sport / Re: Future of arduino on: March 12, 2009, 08:44:21 am
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I would love for the arduino core to be more welcoming for different hardware.

What would be the benefit of that?  

Arduino is quite streamlined, every board has pretty much the same CPU, same basic functionality, etc.  If you start supporting different hardware, you open a huge can of worms.  For example, which libraries work with which cores?  And you can't expect an open source contributor to test their libraries with every permutation it should work with.  Add to that extra bloat in the environment and maybe the bootloader, and you have a much less efficient platform.

It's like the difference between Mac and PC.  PC's support a huge selection of hardware and software including a ton of legacy support, but that contributes a lot of bloat and system overhead.  Macs have a very small selection of compatible hardware and software, but not having to support so much makes it a much more streamlined environment.
830  Forum 2005-2010 (read only) / Bar Sport / Re: Ordering IC samples on: March 02, 2009, 10:13:12 pm
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It's probably not a good idea to do things like fill out a form using a fake company name. While unlikely that anyone would press charges, receiving products in the mail as a result of giving false information could be fraudulent.

Technically mail fraud which in the US is a federal crime.

The companies are usually good about giving samples if you tell the truth.  And if you have to lie to get the parts it is like stealing them.
831  Forum 2005-2010 (read only) / Bar Sport / Re: Web hosting recomendation on: March 12, 2009, 11:30:16 am
They felt compelled to register for a forum to post a webhost's URL?

And all it says is they like the host.  IF they're going to go the trouble of registering, what do they like about it?  At least let's see a 1 paragraph mini-review like every other response here has included.
832  Forum 2005-2010 (read only) / Bar Sport / Re: Web hosting recomendation on: March 12, 2009, 08:37:06 am
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so far, my experience with them is quite good

One really has to wonder about someone who has a single forum posting that's just to plug a service that doesn't actually have anything to do with Arduino.
833  Forum 2005-2010 (read only) / Bar Sport / Re: Web hosting recomendation on: March 06, 2009, 04:21:40 pm
I've used www.icdsoft.com since 2002.  They've been absolutely fantastic in terms of service and reliability, they always answer support tickets within minutes and have gone way beyond what I expect (including once retreiving a database I accidently deleted from their backups, which is amazing for a $5/month plan).

They are based in Hong Kong and bill in US dollars.

Just for contrast, I also use 1and1.com which, I believe is UK based.  1and1 offers far more resources, for the same money (and has cheaper and more expensive plans), but their service is lacking, and realisitically, how much space/bandwidth are you going to use?  The reason I use 1and1 at all is they support multiple domains on one account / one service plan,  which icdsoft does not.
834  Forum 2005-2010 (read only) / Bar Sport / Re: Idea for a new Shield! on: March 09, 2009, 02:32:09 pm
For those who don't want to click a random youtube link (or can't from work), can you give more of a description as well as the link?
835  Forum 2005-2010 (read only) / Bar Sport / Re: wow!Seeeduino Catalyst pack on: February 05, 2009, 08:24:11 am
Actually I meant seeedstudio is not seeedstudio-fan.  Eric will promote his products up front, why would he want to pretend to be a fanboy?  His real account has much more credibility in the community.
836  Forum 2005-2010 (read only) / Bar Sport / Re: wow!Seeeduino Catalyst pack on: February 04, 2009, 08:33:11 am
I saw the pack a while ago while I was placing an order last week.  It does look like a great starter kit and seeeduino is probably my favourite variant because it takes standard shields or perfboard shields.

But it does seem strange to have someone named seeedstudio-fan raving about it and posting nothing else here.  Eric has been very willing to make "official" product announcement here, so I'm really curious too how seeedstudio-fan connects.
837  Forum 2005-2010 (read only) / Bar Sport / Re: ...do you think Arduino could handle that as well? on: February 17, 2009, 10:43:43 pm
The Mega328 has 1/3rd the memory of the PIC18F4685, but if 32k is enough for the program, the Arduino should have no trouble handling the job.

As far as waterproofing a project, I'd use an Otterbox.  There's many with clear panels, but you're not going to find a wristwatch form factor there.
838  Forum 2005-2010 (read only) / Bar Sport / Re: RF cell phone interference and Ferrite Beads on: February 05, 2009, 08:30:47 am
Thanks for the reply, Grumpy Mike.  

With the microphone unplugged there is a lot less hum.  There's about 6 microphones in the room and I can't unplug them all, so I think the quieter hum is coming from a more distant microphone.

It's very limited what I can try because I don't actually do technical work there, I just use the equipment.  I can wrap the lead a few times if I buy a bigger ring.  I don't have the large 3-prong microphone connectors though to put something inline.
839  Forum 2005-2010 (read only) / Bar Sport / RF cell phone interference and Ferrite Beads on: February 04, 2009, 08:38:34 am
I wonder if any RF experts can help me with this one.

I work in an area where there are a lot of microphones in a room connected to a control unit.  If a GSM cell phone is present in the room, I get a nasty hum obliterating my audio tracks every time the phone communicates with the tower.  It's important that I record the audio without missing a second.  We have no cell phone rules, but it's impossible to know who's got a phone on vibrate in their pocket and people just won't turn them off.

I thought putting a ferrite bead on each Microphone cable near where it plugs into the control box would block most of the audio hum at least enough for the audio to be made out.  I just tried it and there's no difference in the hum with or without the beads.

Anyone have some suggestions or insight?
840  Forum 2005-2010 (read only) / Bar Sport / Re: tool to make J-lead from a DIP? on: October 14, 2008, 06:05:04 pm
I don't know the J-lead package, but from your description, can't you just get a flat glass block and roll the IC so the leads are wrapped tightly to the chip body?  

Sort of the way you bend the pins of a new chip in a bit so they'll fit in a socket, but bent much farther.
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