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Author Topic: Multimeter to check for data?  (Read 2988 times)
SAT (aka GANDHI)
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« on: September 30, 2008, 09:49:21 PM »
Quote from: thedotster on July 19, 2008, 06:14:11 AM
Hi,

I'm trying to send data from an MSDOS application down an RS232 lead to an LED display.

Can I use a mutlimeter to check the presence of data down the cable?

Thanks in advance.

Paul
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SAT (aka GANDHI)
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« Reply #1 on: September 30, 2008, 09:49:40 PM »
Quote from: channelmaniac on July 19, 2008, 11:26:58 AM
That would be difficult to do since the data switches values faster than most meters will pick up.

Grab an RS-232 "breakout box" with LED and you'll see the LEDs flicker when the data is flowing.
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SAT (aka GANDHI)
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« Reply #2 on: September 30, 2008, 09:49:55 PM »
Quote from: thedotster on July 19, 2008, 11:59:07 AM
Thanks Channel.

I've googled those and I see what you mean.

I'll get shopping.

Cheers.

Paul
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