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hi i'm new to this but am willing to learn. I need to make a clock that drives the 0808ADC. it's for an A2D converter. anything between 550- 640 kHz is ok i assume.i can't find a clock crystal. any

<duncanbojangles@c...> wrote: Now I'm even more puzzled. Why do you want your positioner to execute 4 steps with each command? By the way, using some latches, you could get the PC to control the

Thank you for the link. This is exactly what I was looking for. Now, I can get my Homemade CNC machine to work using a parallel port interface.

Tom, You can either spend about $250 ( OUCH) for D-sub 9 chassis punch. Or you can use a tool called a nibbler to make the hole size close, and finish it off with a file. Personally I have not had

I mistyped the part #; it's a MAX127, not 187. I had the right datasheet too, just typed it from memory instead of looking to my left. Same concern about using input resistors, though. Mike P.S. Maxim

The MAX187 has an I2C interface. So I have it connected to 3 parallel port lines: one for data out, one for data in, and one for the clock. Very simple. This is also how parallel port PIC and AVR

true, I was thinking more a way to do QA on the batteries. light bulbs would only load down a battery up to a point. But a Battery can recover. Part of the the test is to measure the core. most UPS do

FREE Image software. http://www.irfanview.com/ This is a pretty small package that does a LOT of work ! It converts to jpg or even png or gif. My three favorite functions are crop, resize to a smaller

The simplest way to think of it is this: A cap is a cut in the wire. In the wire itself there is an AC current, so between the plates there also has to be a "current". A coupling however is mostly due

Thanks anyway. kmmath@... wrote:I have never heard the term "displacement" current. Perhaps somebody else in this forum has and can answer your question. ---------------------------------- Hi. I

<duncanbojangles@c...> wrote: http://www.kinzers.com/bluebird/Counter2.jpg This circuit will stop the counter in state 3 (assuming that the STEP signal has been removed). Applying the STEP signal

This is just proclaiming my ignorance, but I didn't know you could connect a serial ADC to a parallel port. The MAX187 has a serial output. I'd like to know about this too. Oh--and you have studied

I've got a MAX187 ADC hooked up to my PC parallel port; to test before I wire it to a uC. And I'm having some trouble reading the correct values. For one thing I'm not clear from the datasheet whether

By "not automacially reset", I was aiming for a count of "0, 1, 2, 3" and then it stops. Preferably at a high level on 3 so that winding stays energized and holds the stepper motor at that position.

Hey! I just opened up this message without the Chinese message coming up. Thanks srinivas rao!! Curtis This spring season, dazzle your special someone with flowers! http://www.flowerson55.com

I'm guessing ... under "internet options"?? I just unchecked some of the auto-updating ... <crossing fingers> Curtis This spring season, dazzle your special someone with flowers!

Yes, that was it! Thanks a bunch. First search on Digikey for ZIF flex turned up the exact connector I need 8) Searching sure works better when you use the correct name. wrote:

<duncanbojangles@c...> wrote: I don't understand what you mean by "does not automatically reset". Do you mean that it starts at 0 and 1, 2, 3 and stops? Or, perhaps starts at zero and counts 1, 2, 3,

This is a very complex idea, oten badly explained, even by lecturers at university. Displacement current is a theoretical mathematical term used originally to explain how current can flow into a