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1276  Using Arduino / Project Guidance / Re: Need guidance on implementing a baby monitor using arduino on: October 11, 2011, 02:19:15 pm
Sorry for the confusion.  None in addition to my link.  I meant you do not need any filters or other IC's.  You need to make a Mic preamp before the A/D.  You can use my idea, or make a simple one with an Opamp.  I disagree with Rob the quality is quite good for voice!
1277  Using Arduino / Project Guidance / Re: transfering files with Xbee on: October 11, 2011, 02:09:38 pm
I plan on doing it with the CircuitsAtHome PTP library and a Canon DSLR camera.  I am considering that it would be best to transfer thumbnail objects only.
1278  Using Arduino / Project Guidance / Re: Need guidance on implementing a baby monitor using arduino on: October 11, 2011, 07:48:28 am
This will make the Mic preamp, noise reduction, compression part of your project easier.  It is a free sample:
http://www.datasheetcatalog.org/datasheet/analogdevices/SSM2166S.pdf

I've been able to sample audio using no additional hardware besides the Uno.
1279  Using Arduino / Project Guidance / Re: Send serial signals wirelessly form iPhone 4 to arduino on: October 11, 2011, 07:35:33 am
I like OSC with a PC running Processing THEN Xbee to Uno.  This makes iPhone the "remote control".
1280  Using Arduino / Project Guidance / Re: Faster Analog Reads on Arduino on: October 11, 2011, 07:19:59 am
I've been sampling audio at 32khz using UNO.  It sounds and appears visually to be accurate with different sine waves.  If I take a simple average of every 4 samples I do not need a Nyquist filter in hardware.
1281  Using Arduino / Networking, Protocols, and Devices / Re: Distance with GPS impossible? <1% accuracy on: October 11, 2011, 06:47:16 am
I agree!  Cool product, but I don't see the price.  I'm sure it is more accurate than 1%, see it is possible!  To all you pessimists.  Especially with the odometer input, that makes it perfect for measuring distance.
1282  Using Arduino / Project Guidance / Re: Voice Wifi Transmission Project on: October 04, 2011, 10:13:09 am
I disagree.  I've got it working with the circuit above.  Voice recognition is much more difficult with our hardware.
1283  Using Arduino / Project Guidance / Re: Detecting lean angle on a motorcycle on: October 02, 2011, 07:48:42 pm
That's what I've been saying.  A cheap gyro will not work either.  Use GPS.  It's proven to work at the track every weekend.
1284  Using Arduino / Project Guidance / Re: Digital walkie talkie? on: October 02, 2011, 07:43:26 pm
A resistor to 5V.  I used the circuit in the PDF above.  Works great!
1285  Using Arduino / Project Guidance / Re: Photo Uploader on: September 29, 2011, 09:50:29 am
This website, not just the page, will get you started with the Android.
http://www.circuitsathome.com/mcu/programming/android-adk-terminal-emulator-for-arduino

As you probably know, you won't get very far unless your "customers" jailbreak their iPhone.  You'd have to write your own App, obviously.  I have not seen a library to interface the 2 together.  This works great for me:
http://www.sparkfun.com/tutorials/152

But it is not what you're looking for.
1286  Using Arduino / Project Guidance / Re: Photo Uploader on: September 29, 2011, 09:36:06 am
First try to browse the SD card using the Arduino language.  Maybe using Openlog hardware?  What good would a phone interface be if you can't complete the first step?
1287  Using Arduino / Project Guidance / Re: Photo Uploader on: September 29, 2011, 08:45:31 am
Let's put on our thinking hats.  Buy a microSD card with a bigger adapter (SD) so it'll fit into the camera.  Then you can put it into the phone also.  If the pictures were in the right folder, you can browse them on the phone, and send them using Wifi.  Some phones will browse to any folder.  Sounds like the perfect solution to me.  Why is it not popular to use?  Because people are using PC's to view the pictures before sending, or something like this:
http://www.digitalfoci.com/photo_safe.html

The most popular solution is to buy more than one 32GB card.  This should hold enough still images from even a long holiday for a light packer.  Our mobile phone solution would only be useful for someone traveling light, who wants to share the photos immediately.  They are making tiny PC's today.

Video, on the other hand, needs a useful product to copy the files daily.  It's hard to beat a cheap PC with a big drive.
1288  Using Arduino / Project Guidance / Re: Photo Uploader on: September 29, 2011, 12:27:53 am
You have to read the next line after the one you quoted to find out.

Oh wait.  Why not just buy a mobile phone for $20 that has an SD slot?  Then you can do what you asked!
1289  Using Arduino / Networking, Protocols, and Devices / Re: Sparkfun USB Host Shield working with oleg USB Host Shield 2.0 on: September 28, 2011, 10:43:00 pm
Will you write a quick tutorial when you're finished testing?  Hardware and software changes?
1290  Using Arduino / Project Guidance / Re: Photo Uploader on: September 28, 2011, 10:33:34 pm
Wrong again KE7!
The Arduino can easily talk to a mobile phone.  All the work is done.  Depends on the mobile phone:
http://www.circuitsathome.com/mcu/programming/interfacing-arduino-to-a-cellular-phone
That will be the easy part if you have the right phone.

The hard part will be interfacing to Dropbox since they don't have an Arduino library.
Choose an easier alternative.
Start with reading the SD card?
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