Hi Enzo,
If you have a digital camera with a LCD-display, you can see the IR light too.<p>TOK
Search found 316 matches
- Wed Jun 15, 2005 3:31 am
- Forum: General Discussion
- Topic: Remotes
- Replies: 10
- Views: 3664
- Tue Jun 14, 2005 3:08 pm
- Forum: General Discussion
- Topic: Event Per Hour
- Replies: 7
- Views: 4167
Re: Event Per Hour
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by Matt Nuzum: .... I'd also like to have a babel fish and doors that make a satisfied sigh of contentment whenever they open and close, but that is a conversation for a different ...
- Mon Jun 13, 2005 3:41 am
- Forum: General Discussion
- Topic: magnetic sensor help
- Replies: 7
- Views: 3036
Re: magnetic sensor help
Hi Mike,
Have you tried Hall-effect sensors?<p> http://www.allegromicro.com/hall/ <p>I don't know if your application can use this, but have a look!<p>TOK
Have you tried Hall-effect sensors?<p> http://www.allegromicro.com/hall/ <p>I don't know if your application can use this, but have a look!<p>TOK
- Mon Jun 13, 2005 3:12 am
- Forum: General Discussion
- Topic: Design Patterns on your oscilloscope
- Replies: 14
- Views: 5345
Re: Design Patterns on your oscilloscope
Hi Craig,
Did you get my email?<p>TOK
Did you get my email?<p>TOK
- Sun Jun 12, 2005 2:19 pm
- Forum: General Discussion
- Topic: Design Patterns on your oscilloscope
- Replies: 14
- Views: 5345
Re: Design Patterns on your oscilloscope
Craig,
If you ordered the book, you'll get the info on the Syntheshape yourself. But if you'll have a copy any way, I'll email it to you.<p>TOK
If you ordered the book, you'll get the info on the Syntheshape yourself. But if you'll have a copy any way, I'll email it to you.<p>TOK
- Sun Jun 12, 2005 1:31 pm
- Forum: General Discussion
- Topic: Design Patterns on your oscilloscope
- Replies: 14
- Views: 5345
Re: Design Patterns on your oscilloscope
Craig-1, In the 'Projects in Sight, Sound & Sensation' book you've asked for in another posting, there is a project like the one you ask about here. The 'Syntheshape - Oscilloscope Art Generator' generate some hefty patterns on your scope.<p>I got the book from Abebooks just the other day, sorry...
- Sat Jun 11, 2005 4:51 pm
- Forum: Computer Programming
- Topic: Programming WEBCAM
- Replies: 1
- Views: 3387
Re: Programming WEBCAM
Try this website: http://www.twain.org/ <p>TOK
- Sat Jun 11, 2005 3:50 pm
- Forum: General Discussion
- Topic: pic pwm feasible?
- Replies: 7
- Views: 3220
Re: pic pwm feasible?
Hi Matt, Rstofer gave you a very good advice on this. You need a PID regulation for this application. And just for the heck of it, you may also try to get som knowledge about Fuzzy Logic. I'm not sure if Microchip has done any proper application on this, but I found some papers when I searched their...
- Sat Jun 11, 2005 10:22 am
- Forum: General Discussion
- Topic: a circuit exhibiting exponential decay ??
- Replies: 12
- Views: 4830
Re: a circuit exhibiting exponential decay ??
Hi Robert,
I suppose your mission is completed, with success. But I still think the fuse blew!<p>TOK
I suppose your mission is completed, with success. But I still think the fuse blew!<p>TOK
- Sat Jun 11, 2005 10:14 am
- Forum: General Discussion
- Topic: Freq to voltage converter for use with computer HDD LED
- Replies: 3
- Views: 2010
Re: Freq to voltage converter for use with computer HDD LED
Hi Jon, If you use an optocoupler as the interface by connecting the optocoupler LED in the HDD LED circuit, you can use the output transistor either in a source or sink configuration. I'm not sure what you want to display, is it the number of accesses or the time the HDD is accessed. If it is the t...
- Sat Jun 11, 2005 9:29 am
- Forum: General Discussion
- Topic: Power calculation
- Replies: 11
- Views: 3989
Re: Power calculation
Hi Stephen, Sorry about the mess. (It was a bit late, 2AM in my part of the world). <p>It is easy to see it if you use two samples. Sample 1 = 1, and sample 2 = 0. 1 x 1 = 1. The average is 1/2. The RMS= sqrt(1/2) = 1/sqrt(2).<p>Hate to admit it, but I jumped the conclusion! :( (And was out of grid!...
- Sat Jun 11, 2005 4:57 am
- Forum: General Discussion
- Topic: a circuit exhibiting exponential decay ??
- Replies: 12
- Views: 4830
Re: a circuit exhibiting exponential decay ??
Hi Pebe, In this case I think your hypothetical fuse will blow instantly (or close to), because of the hypothetical current soaring to infinity. I suppose you use a capacitor with a hypothetical internal resistance of zero ohm. :D <p>And Joesplink: To be serious, the 10 volts in this example is bett...
- Fri Jun 10, 2005 5:00 pm
- Forum: General Discussion
- Topic: Power calculation
- Replies: 11
- Views: 3989
Re: Power calculation
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by MrAl: Also... Note that when a square wave runs from zero to some positive value (never goes negative) it's value is rms=peak/sqrt(2), not rms=peak. <hr></blockquote><p>Are you ...
- Fri Jun 10, 2005 4:22 pm
- Forum: General Discussion
- Topic: pic pwm feasible?
- Replies: 7
- Views: 3220
Re: pic pwm feasible?
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by Matt Nuzum: Hey, thanks. I didn't realize that was what I was doing. Those keywords gave some excellent documents.<p>Your response indicates, "you *could* do it that way, b...
- Fri Jun 10, 2005 4:04 pm
- Forum: General Discussion
- Topic: a circuit exhibiting exponential decay ??
- Replies: 12
- Views: 4830
Re: a circuit exhibiting exponential decay ??
The main question in this is: Does the flashlight lamp work with the single 1.5V cell at all? Your connection does not increase the voltage with the capacitor, so do you have light when you connect the lamp over the battery? I've always used at least 2 x 1.5V cells (3V) in my flashlights.<p>(But we ...