Spin Zone -Sept. Nuts&Volts issue-Servo help

$WMc%

Hello All...
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I've been playing with the servo control concept from this article in N&V mag.
http://www.nutsvolts.com/magazine/downloads/
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This code is not working for me? All I get from the PST is "Low-speed wag"
(I'm using the PropProDEV Board here.)
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I'm confused with the OEn = 27 statement? "Line 33"
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What is " HC-8+" ???
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I took the article as saying that an external servo controller was not needed? But could be used if needed.
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I really like this approach at dealing with servos. And I really want to learn this concept.
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I don't write in spin. But I can understand what the spin code is doing.
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I don't ask for help very Afton, But I'm struggling here!
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I really want to convert this to Propbasic. But i need to understand the Spin first. And have a working spin code to make this happen
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Thanks for any help here.

JonnyMac

The OEn (output enable) pin only pertains to the HC-8+, a new Propeller-based controller coming from EFX-TEK (not released yet); you can remove these references. I ran the program on my PPDB and it works.

All I get from the PST is "Low-speed wag"

Are you being impatient? "Low speed" is really slow and if you don't have your servo marked you may not notice it moving.

That said, I have made (small) updates and changed the name of the driver since I wrote that article; attached is the updated driver and a demo that removes the references to the HC-8+. As I type there is a servo connected to my PPDB wagging back and forth. You might want to check your servo voltage jumper on the PPDB; I have mine set to Vdd. If yours is set to V_EXT and there's no external voltage then the servo(s) won't do anything.

I've been using this driver in a lot of projects -- including a beta HC-8+ that is running inside a prop in the Haunted Mansion in Disneyland (controls a few elements of the gingerbread house in the ballroom).

$WMc%

Thanks Jonny Mac

"The OEn (output enable) pin only pertains to the HC-8+, a new Propeller-based controller coming from EFX-TEK (not released yet); you can remove these references."
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I was being impatient, The servos ran so smooth, so quiet, and so slow I didn't notice they were moving until I spotted them from a fixed point.
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I have to say I have never seen a servo run this smooth and quiet.
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Do you have a release date for the EFX-TEK...HC-8+?

JonnyMac

Bet you wish you could take this back:

And have a working spin code to make this happen

Of course, I kid. Honestly, I had to look, too, just to make sure my servo was moving.

In a perfect world the HC-8+ would be out by now but we're getting close. As I said, Disneyland and a few other close customers have them in the field; so far so good and we'll move to production before the Christmas season. The board has RS-485 IO, a DMX switch, and eight, high-current outputs so it should be fun to use around the Christmas season.