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My first electronics kit was a simple blinking LED that ran off a simple LM3909 (discontinued) chip. I hooked it up to a D cell battery and it was still blinking 2+ years later.<p>I think your idea is cool, but I'd just make a few free-standing signs that use several high-intesity LEDs and some D ce...

Thanks for the help everyone... the link to that PDF file gave me the answer about how to hook it up, and it worked ok (very slow) until I switched to HS mode. Then it worked great (It also helped that I MCLR to ground... it worked "funny" without that). For the archives:<p>To switch to HS...

Can anyone tell me how to hook this crystal to a PIC 16f84a?<p>Here is a link to the PDF but the pertinent information is (SG51 series): 14 pin DIP package (only 4 pins though) - pin 1 labeled OE - pin 7 labeled GND - pin 8 labeled OUT - pin 14 labeled Vdd http://www.gulf-coast.net/ebay/sg-531p.pdf ...

This kind of makes me think of a project I wanted to do about a year ago.<p>I wanted to make a big button for my computer so that I could push it to make my computer do something. Now that I've learned about micro-processors and such, it seems like this would be feasible. Maybe the original poster c...

I'm not sure what an HDTV calibration image looks like, The first thing that comes to mind is the color calibration image that comes on the Adobe photoshop CD... it has a woman holding a basket of fruit on her head and a bunch of squares of color surrounding it. This would give you each of the prima...

Requirements: ** Lofty End Goal ** To better understand human-machine interaction. My goal is to control a device that turns left-to-right like a stearing wheel from a computer.<p>My theory is that when using a joystick, people move the device far left if they want to move left quickly, and slightly...

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, but there's probably easier solutions..." I'm eager to hear about other options... No use re-inventing the wheel too many times in ...

Yes, I know there are PICs with built in PWM, but for the sake of argument, lets say I'm not using one of those.<p>There are plenty of circuits for creating PWM with a 555 timer. They usually have some type of variable resistor that adjusts the speed of the motor.<p>Would something like this work: W...

Gorgon,<p>Did you use the Z8 for an automation project? If so, can you tell me how suitable it would be to do the following:<p>I need to drive several devices and read inputs at one time. For example, turn motor 1 to 180 degrees and stop, while turning motor constantly until button 1 is pressed whil...

That Maveric board looks very intriguing.<p>Am I correct when I say that both the ATmega128 header and the Maverick need to use a chip programmer with ICSP in order to program them?<p>Also, does the ATmega128 header plug into a breadboard? It's got an unusual layout and I don't see how it can connec...

Years ago I was deeply interested in analog electronics. While in college I diverted my attention to computing platforms and now work programming computers and other tasks.<p>My brother and I are planning an ambitious project that will involve some robotic-like mechanics. While all or most of the pa...

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by philba: I can't agree more. Spelling and grammar do influence people's perception of you. You will be taken far more seriously if you present a professional, competent image. <h...

Is this an "English speakers only" forum? If so, is it also only for those English speakers who can read and write at a high-school level?<p>My guess is that based on the subject matter of this forum, it attracts people from all over the world. What you are implying to those who read this ...

I saw that the "Cool Websites!" inset in the May 2005 magazine had a link described as, "Hacking your mouse." How could I resist? I typed in that hideously long url and was redirected to a site that showed a "page not found" error.<p>Being resourceful, I searched around...