Search found 99 matches

by wd5gnr
Tue Sep 07, 2004 4:51 am
Forum: General Discussion
Topic: Simple Remote control
Replies: 10
Views: 1168

Re: Simple Remote control

The code that accompanies the article is for reading the remote from the PC. But the signal it produces is just a signal. You could use it to trigger anything. I just happen to be using it to trigger a PC serial port's handshaking line. In fact, I've used the same setup to trigger a relay and a Basi...
by wd5gnr
Mon Sep 06, 2004 6:00 pm
Forum: General Discussion
Topic: Simple Remote control
Replies: 10
Views: 1168

Re: Simple Remote control

The article I mentioned doesn't use a PIC or a Stamp and it is RF, not IR. It is just a hack of a cheap piece of radio shack gear. I'm not sure where you got the idea it was PIC/Stamp/IR related.
by wd5gnr
Mon Sep 06, 2004 3:52 pm
Forum: General Discussion
Topic: Simple Remote control
Replies: 10
Views: 1168

Re: Simple Remote control

Have a look at http://www.wd5gnr.com/rfrem.htm. Quick and easy.
by wd5gnr
Sat Sep 04, 2004 6:58 am
Forum: General Discussion
Topic: Hints for a rookie writer?
Replies: 34
Views: 6809

Re: Hints for a rookie writer?

I'll weigh in. I have made part of my living from time to time as a magazine columnist or editor (editing generally pays better). However, I've never been able to make much money writing electronics articles and have stuck mostly with software development magazines (Dr. Dobb's, Web Techniques, Visua...
by wd5gnr
Thu Aug 26, 2004 4:46 pm
Forum: General Discussion
Topic: White LEDs
Replies: 14
Views: 1737

Re: White LEDs

You need a dropping resistor. Computing the value depends on the voltage of the LED, the battery voltage, and the current you want to drive through the LED. An exercise in ohm's law.<p>If you want to learn more about all of this, check out http://www.al-williams.com/classroom/co ... w.php?id=4.
by wd5gnr
Mon Aug 09, 2004 10:14 am
Forum: General Discussion
Topic: RS-232 control of light bulb
Replies: 10
Views: 1359

Re: RS-232 control of light bulb

Speaking of the Firecracker, if you can get these cheap (they have, at times, given them away for shipping) they make a great interface for the BS2:
http://www.al-williams.com/firecracker.htm
by wd5gnr
Tue Aug 03, 2004 12:05 pm
Forum: General Discussion
Topic: P.C.Board design
Replies: 18
Views: 2625

Re: P.C.Board design

If you are looking for some guidance on Eagle (or toner method or even outsourcing boards) look at http://www.nutsvolts.com/Store_Pages/Books/buildYourOwnPrintedCircuitBoard.php .<p>The free version of Eagle is very capable. They do want money if you use it commercially or you want to do larger or 3...
by wd5gnr
Fri Jul 30, 2004 6:18 am
Forum: General Discussion
Topic: LED Sequencing
Replies: 10
Views: 1374

Re: LED Sequencing

A PIC could do this. However, if you are just getting your sea legs in electronics, you may find the Basic Stamp easier to work with. They are at http://www.parallax.com . I maintain an unoffical Basic Stamp FAQ at http://www.wd5gnr.com/stampfaq.htm .<p>If you do want to work with the PIC (or an Atm...
by wd5gnr
Fri Jul 30, 2004 6:15 am
Forum: General Discussion
Topic: another dumb LED question.
Replies: 5
Views: 699

Re: another dumb LED question.

In addition to Al's answer (what a great name), you might enjoy:
http://www.wd5gnr.com/basiccir.htm
by wd5gnr
Mon Jul 12, 2004 5:55 am
Forum: General Discussion
Topic: Reading servo signal from JR receiver
Replies: 6
Views: 882

Re: Reading servo signal from JR receiver

I doubt the Stamp can read fast enough to get both sides of the square. So you are actually skipping some parts for example: <blockquote><font size="1" face="Verdana, Helvetica, sans-serif">code:</font><hr><pre> --___-----_____-----____ A B C D </pre><hr></blockquote><p>You might be reading A and D,...
by wd5gnr
Mon Jul 05, 2004 3:20 pm
Forum: General Discussion
Topic: RS-232 control of light bulb
Replies: 10
Views: 1359

Re: RS-232 control of light bulb

More overkill for your application, but you could use the controller at [GP3] and a solid state relay or a mechanical relay to do the job. I've used them many times with SSRs but usually we need to control several. The board has libraries that are usable with Visual Basic, Java, C/C++, Linux, or eve...
by wd5gnr
Tue Jun 22, 2004 1:59 pm
Forum: General Discussion
Topic: NEWBIE Relay's and Microcontrollers
Replies: 6
Views: 912

Re: NEWBIE Relay's and Microcontrollers

You might find this pageof interest.
by wd5gnr
Thu Jun 17, 2004 7:28 pm
Forum: General Discussion
Topic: Microcontroller Programming
Replies: 10
Views: 1441

Re: Microcontroller Programming

You can see several tutorials at this tutorial site. There is also a Basic Stamp FAQ at this site.
by wd5gnr
Thu Jun 10, 2004 1:17 pm
Forum: General Discussion
Topic: Oscilloscope question
Replies: 8
Views: 1331

Re: Oscilloscope question

Hi Zeek,<p>In an indirect answer to your question, let me point out that learning to use a scope will be one of the most important things you ever do related to electronics since the scope is the principle way we "look" at electronics.<p>The screen of the scope is a graph. The X coordinate (horizont...
by wd5gnr
Sun Jun 06, 2004 4:57 pm
Forum: General Discussion
Topic: Embedded Email Client
Replies: 4
Views: 908

Re: Embedded Email Client

Have a look at:This book