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1276  Using Arduino / Project Guidance / Re: transfering files with Xbee on: October 11, 2011, 11:01:04 pm
I have the Bushnell Trophycam.  It takes <2ma of power so the AA batteries could last for many months.  The Passive IR is very sensitive to even a large bug or a mouse 30m away.  Too small to see in a picture.  It depends on the outdoor temperature.  

The PTP library will work with most Canon's even the cheap consumer models.  I have the 500D T1i DSLR which was $200.  The quality of your WGI image and my Bushnell are OK, but they do not compare to a DSLR which costs about the same without any additional hardware.  With a USB extender I can view what the camera is seeing from 300m away.  Would you be interested in those details?  

Otherwise we can use XBee to view the thumbnails while the camera takes the pictures under control of the Arduino with PIR sensor.

Certainly a Uno can press a button, but I don't understand how it will trigger and why in your case.
1277  Using Arduino / Project Guidance / Re: Power saving on: October 11, 2011, 09:57:24 pm
I'm measuring the external power source.  Yes, it has the USB on it.  
1278  Using Arduino / Project Guidance / Re: Power saving on: October 11, 2011, 09:29:08 pm
The 328 gets warm on mine.  Cold on the others.  Easy to replace.  Why 50ma when it should be 25?  Any guesses how I blew it?
1279  Using Arduino / Project Guidance / Re: Power saving on: October 11, 2011, 09:18:34 pm
My friend has 2 more that look exactly the same.  All Arduino brand Uno with socketed 328's.  The other 2 measure 50ma at 8v.  50 not 150.  So something is different about mine.  Still why 50ma?  How do I troubleshoot mine?
1280  Using Arduino / Project Guidance / Re: Power saving on: October 11, 2011, 08:53:37 pm
With an empty sketch
void setup() {}
void loop() {}
it's still 150ma.  Nothing is connected.  What am I doing wrong?
At 12v the regulator gets hot.
At 8v it does not.
1281  Using Arduino / Project Guidance / Re: Power saving on: October 11, 2011, 08:35:57 pm
No hardware is connected for this test.  But I was running a Sketch.  Let me run an empty one?
Using 8v battery pack with multimeter to measure current.
1282  Using Arduino / Project Guidance / Power saving on: October 11, 2011, 08:22:56 pm
I'm sure this has been asked before but I can't find it.  I heard that the ATmega328 chip uses about 10-20ma when idle.  My Uno is drawing 150ma.  Can I turn off the USB port if my Sketch doesn't use it?  I've read how to get it from 10 down to 3ma or less.  I know about powering down and sleep modes.  That is not my concern.  I want to get down from 150ma to 10-20ma.  How do I do it?
1283  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!
1284  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.
1285  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.
1286  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".
1287  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.
1288  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.
1289  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.
1290  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.
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