Not really, Andrew. Just want to see some data from the DMM. With the above 
code I get only this : b' '
Even when the dmm is off.
 
From: Andrew Burgess <a...@cichlid.com>
To: ranzam ali <ryanzam2...@yahoo.com>; pyusb-users@lists.sourceforge.net 
Sent: Thursday, October 3, 2013 7:10 PM
Subject: Re: [pyusb-users] accessing DMM
 

On 10/03/2013 08:11:02 AM, ranzam ali wrote:

> while True:
> 
>     #\r\n is for device terminators set to CR LF
>     ser.write(bytes(':FETCh?\r\n',  encoding='ascii'))

did you want that lowercase 'h'?

if so, try sending a few crlf first? just guessing.
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