[sdiy] cute hand held scopes on eBay

[Dave Brown]

I built the AVR scope into a module in my synth
http://modularsynthesis.com/modules/DJB-019/djb019.htm  I show a 300 KHz
square wave image which is fairly decent.

I use it with a slow timebase to show an envelope generator output, or to
set a frequency (it's pretty decent at that).  I would not want to use it
for troubleshooting simply because of the difficulty of the controls.
Besides using multiple channels, I'm always changing the timescale and
trigger, and pushing little buttons to do that is a pain.  I do know someone
that does use this scope for troubleshooting though but they have more
patience than I.  One of the software revisions enables cascading multiple
AVR scopes for multiple channels.

David J. Brown
Email davebr at earthlink.net
Website http://modularsynthesis.com

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Neil Johnson
Sent: Thursday, February 23, 2012 9:45 AM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] cute hand held scopes on eBay

Steve Maietta wrote:
> Thise "sine" waves look bad yes, but that's at 500Khz..  So for RF, okay
its not going to work.. But perhaps for synth use they do a "good enogh"
job?  For tuning circuits, trimming waveshapes etc??