Re: multimeters with a USB interface linux?


Siegfried Jackstien
 

No ... you were probably talking about 20-30 year old gear :-)


Dg9bfc


Sigi

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Gesendet: Sonntag, 10. Mai 2015 20:45
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Betreff: Re: [Raspberry_Pi_4-Ham_RADIO] Re: multimeters with a USB
interface linux?



´╗┐
Hi Dick Ok It was worth checking, as these things get more processing
power it becomes possible....I am probably talking of 10 year old product,
where we saw that problem.

Alan
G3NYK

----- Original Message -----
From: g4bbh@btinternet.com [Raspberry_Pi_4-Ham_RADIO]
<mailto:g4bbh@btinternet.com [Raspberry_Pi_4-Ham_RADIO]>
To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
Sent: Sunday, May 10, 2015 9:03 PM
Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: multimeters with a USB
interface linux?

Hi Alan
The article at linuxtoys.org suggests that it is ASCII data. I seem
to remember that my Chinese made cheap DMM with RS-232 also responded as
ASCII strings when I looked at it as a 1200bd serial port (under windows)
with my USB to RS-232 adapter. A quick check on the RPi2 also had results
using a terminal emulator and /dev//ttyUSB0. Not gone further than that.
A good start might be to 'sniff' the serial data using original
Windows software and see what the protocols are but that needs an older
window machine if the software won't run on Win7
Dick G4BBH

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