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They probably use this chip or MOSFETs that are good for a lot more. Combining low-power CMOS logic with high-current and high-voltage bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/drivers provide complete control and drive for a four-phase unipolar stepper-motor with continuous ou...

Hi Genuis Wu
Welcome to the forum. These guys are not used to so much enthusiasm. What are your interests?

Whatever you are moving could have a hole in it to insert the screw with a set screw from the side to lock it tight.

What ever happened to pyramid power?

If you web search on interface you wil get all the info you need and then some. You srould go with serial but if you end up with parallel and an 8255 interface chip, get back to me. Parallel is the hard way and you only get a nibble at a time on the status port unless you find out about two way data...

I called them tonight. They said Dec. is in the mail.

That explains a lot!
Dave

Quote: “The rings were rusty so he wanted to demonstrate a trick where he mixes baking soda in some water, puts a metal electrode in the water with the black ground lead from a battery charger attached. He then attaches the red 12v lead to the metal parts and places them in the water. He sets the ch...

You might look into radio direction finders. Boats used to use them but you have probably seen them used to track animals that have been tagged with a transmitter. They operate on signal strength. You may be able to get a distance and direction out of it.

Hi Externet
I could use some 8255 Parallel Peripheral Interface chips or circuit boards that include them.
Thank you
Dave Hogan

In the Microsoft DirectX 8.0 and later SDK there is sample source code for AMCAP.EXE that will capture and display live video from USB cameras. You can get a pointer to its buffer and snag a bitmap copy to do with what you will.

In the Microsoft DirectX 8.0 and later SDK there is sample source code for AMCAP.EXE that will capture and display live video from USB cameras. You can get a pointer to its buffer and snag a bitmap copy to compare with your sample or look for a cluster of yellow etc.

That sounds like a single phase gen. to me. Use a meter to find 2 outputs that have 220V across them and use them. They are line 1 and line 2.

The magnetic North pole is in the middle of Canada now.

I found what I needed at http://forum.microchip.com/tm.asp?m=73062