DSO NANO - how we users can impact next hardware design !!!

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Blanco
Pre-kindergarten
Pre-kindergarten
Posts: 1
Joined: Thu Feb 23, 2012 9:38 pm
Are you a staff member of seeedstudio?: no
Which products/projects are your favorite?: DSO Nano v2

Re: DSO NANO - how we users can impact next hardware design

Post by Blanco » Thu Feb 23, 2012 10:04 pm

Hi,

My DSO Nano v2 got a short circuit in the probe. It almost ruined the circuit I tested. I found that the 3.5mm probe connector inside the unit was flawed, so I desoldered it and replaced it with two wires and an external connector. In the process the battery also short circuited a couple of times because it was poorly soldered. Then when everything was working I had a really hard time getting the cover back on because it was so tight (not because of my modifications).

For the next version I recommend the following:
-more reliable probe connectors
-better soldering/solder layout of the battery
-larger screws for the cover and PCB

Regards,
Blanco :geek:

alys
Pre-kindergarten
Pre-kindergarten
Posts: 14
Joined: Mon Apr 09, 2012 12:39 pm
Are you a staff member of seeedstudio?: no
Which products/projects are your favorite?: DSO Nano v2

Re: DSO NANO - how we users can impact next hardware design

Post by alys » Mon Apr 16, 2012 6:17 pm

imho, design must have resistor in serial among U9 chip pin Y3 and output jack CN3, else it is easy to overload Y3, to limit output current according to max current ratings of the chip. resistor about 100-150 omhs.
anyway i m advising to do this mod to current users.

techkbz
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Pre-kindergarten
Posts: 2
Joined: Mon Aug 18, 2014 7:22 pm

DSO NANO is great !!!

Post by techkbz » Tue Aug 19, 2014 1:14 am

;) I saw the DSO demonstration in my arduino course. It's very usefull to work. the DSO is pratical and good to work fine to automation projects. :D

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