As oscilloscope I'd like to see Dave Jones review
in [Design]
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From: Joel Koltner on 14 Jun 2010 14:10 Well, OK, a review has already been done, but not in Dave's "unique" manner: http://robotics.ong.id.au/2010/01/seeed-studio-dso-nano-oscilloscope-review/ They cut a LOT of corners on that design, which is kinda too bad since it's a pretty cool form factor. ("The lithium polymer charger consist of a 1 Ohm resistor in series with a diode connected to the +5V USB." !@#$& ???)
From: Jan Panteltje on 14 Jun 2010 14:34 On a sunny day (Mon, 14 Jun 2010 11:10:09 -0700) it happened "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote in <7guRn.356611$Jq1.282518(a)en-nntp-05.dc1.easynews.com>: >Well, OK, a review has already been done, but not in Dave's "unique" manner: >http://robotics.ong.id.au/2010/01/seeed-studio-dso-nano-oscilloscope-review/ > >They cut a LOT of corners on that design, which is kinda too bad since it's a >pretty cool form factor. ("The lithium polymer charger consist of a 1 Ohm >resistor in series with a diode connected to the +5V USB." !@#$& ???) Mine is much cheaper and has FFT: http://panteltje.com/panteltje/pic/scope_pic/ :-)
From: Joerg on 14 Jun 2010 14:36 Joel Koltner wrote: > Well, OK, a review has already been done, but not in Dave's "unique" > manner: > http://robotics.ong.id.au/2010/01/seeed-studio-dso-nano-oscilloscope-review/ > Quote "The PCB itself is only a two layers board with no ground plane." Ummmm, nah, thanks :-) > > They cut a LOT of corners on that design, which is kinda too bad since > it's a pretty cool form factor. ("The lithium polymer charger consist > of a 1 Ohm resistor in series with a diode connected to the +5V USB." > !@#$& ???) > http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery Quote "Overcharging a Li-poly battery will likely result in explosion and/or fire." Oh, oh ... -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Jan Panteltje on 14 Jun 2010 14:46 On a sunny day (Mon, 14 Jun 2010 11:36:38 -0700) it happened Joerg <invalid(a)invalid.invalid> wrote in <87nb5qF8bcU1(a)mid.individual.net>: >Joel Koltner wrote: >> Well, OK, a review has already been done, but not in Dave's "unique" >> manner: >> http://robotics.ong.id.au/2010/01/seeed-studio-dso-nano-oscilloscope-review/ >> > >Quote "The PCB itself is only a two layers board with no ground plane." > >Ummmm, nah, thanks :-) What? http://panteltje.com/panteltje/pic/scope_pic/lcd_rear_img_2004.jpg
From: hamilton on 14 Jun 2010 14:51
On 6/14/2010 12:46 PM, Jan Panteltje wrote: > On a sunny day (Mon, 14 Jun 2010 11:36:38 -0700) it happened Joerg > <invalid(a)invalid.invalid> wrote in<87nb5qF8bcU1(a)mid.individual.net>: > >> Joel Koltner wrote: >>> Well, OK, a review has already been done, but not in Dave's "unique" >>> manner: >>> http://robotics.ong.id.au/2010/01/seeed-studio-dso-nano-oscilloscope-review/ >>> >> >> Quote "The PCB itself is only a two layers board with no ground plane." >> >> Ummmm, nah, thanks :-) > > What? > http://panteltje.com/panteltje/pic/scope_pic/lcd_rear_img_2004.jpg Unreadable schematic and one color wiring. I'll just go out and build one today ;-). hamilton |