[HH] portable oscilloscope

[Tom Metro]

Have you seen one of these?

http://www.seeedstudio.com/depot/dso-quad-aluminium-alloy-black-p-1034.html?cPath=174

  DSO Quad is a pocket size 4 channel digital oscilloscope for common
  electronic engineering tasks. It's based on ARM cortex M3
  (STM32F103VCT6) 32 bits platform, providing 72MS/s sampling rate with
  integrated FPGA and high speed ADC. Internal 2MB USB disk could be
  used to store waveform, user application and upgrade firmware.


Handheld DSOs have been around for a decade or more, but until fairly
recently they've been over $1000 (see Fluke's Scopemeter family). In
recent years there have been a few low-end scopes as kits or products in
the sub-$300 range (Vellman (vellemanusa.com) makes a few), but the
low-end specs make them useful for not much more than audio frequencies.

There also have been computer add-on products for creating a DSO on the
cheap. First peripherals for desktop computers, then laptops, and now
iPhones. They all look pretty clunky to use.

Now it appears the commodities spilling over from volume production of
smartphones is making self-contained handheld scopes relatively cheap.
The 2-channel (the 4-channel claim is misleading) 72MS/s DSO with a
color LCD in a package about the size of a smartphone sells for about
$200. These seems to be popular with hardware hackers.

 -Tom