DSO Nano oscilloscope V2 Review
DSO Nano v2 is a Digital Storage Oscilloscope designed for basic electronic engineering tasks. Within its smart shell, the device runs on ARM CortexTM-M3 32 bit platform, provides basic waveform monitoring with extensive functions. It equips 320*240 color LCD, micro SD card storage, portable probes, LiPo Battery, USB connection and signal generator. Due to palm size and handy performance, it fits in-field diagnosis, quick measurement, hobbyist projects and wherever convenience matters. Scheme and source files are also open for re-innovating
Price : $98.99
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DSO Nano oscilloscope V2 Feature
- Portable and lightweight
- Color display
- Waveform storage and playback
- Built-in Signal Generator
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88 of 88 people found the following review helpful.
awesome idea but needs the second channel
By Sergey Babkin
It's a real entertaining and cute device. An awesome idea, and at this price, a great thing to have around a household. The automatic functions, in particular frequency measurement are very nice.
However after you try to use it for anything practical, you quickly find that an oscilloscope really needs to have two input channels because usually you need to see not just a shape of a signal but the dependency between two signals. I'd much rather have the signal generator exit dropped and the second input installed instead. It would have been better to spend a few bucks more for a dual-channel device, but as people have pointed out, I was mistaken and there aren't any cheap dual-channel scopes. The cheapest ones start at $350-400, and these are some serious scopes.
There are other nitpicks too: The interface is far from intuitive. The side buttons (A and B) click before they actually make contact and make this weird impression that "I've pressed the button but nothing happened". Turns out, they need to be pressed harder, to the point after they click. The signal generator exit didn't work on mine out of the box. I've opened the case (with the included screwdriver!), didn't see any obvious solderings missing, closed the case back, and then the generator worked. I don't know, what was the problem. The sampling frequency is also on the low side. 1 MHz from the spec is not the maximum input signal frequency, it's the sampling rate. The maximum frequency at which the signal looks reasonable is about 50 KHz. Good enough for using on a car but forget about using it on any digital electronics. The mini-USB charging cable is not included but it's easy to get, and the battery comes fully charged and ready to use right away.
P.S. Found what was wrong with the signal generator: nothing wrong as such but the polarity matters. When you connect the signal output to the input in one polarity, it works. In the opposite polarity it shows nothing. Probably the output is not correctly electrically decoupled. The leads are unmarked and look the same, so it gets down to luck. After I've figured this out, I've marked the leads on mine.
41 of 47 people found the following review helpful.
Nice toy, mostly useless...
By jfd
With only one channel and no external sync input, it is very hard to view a non-recurrent signal. Also, the controls are baffling, to say the least, consisting of only four push-buttons plus an 'OK' button: to change one setting one has to cycle through every other settings in a seemingly more or less random fashion. The probe is very flimsy and mine is stuck in the open position. The manual is very sketchy, with hardly any explanation of the controls.
It's a nice toy to be sure but I found it mostly useless. Unfortunately, I didn't buy it from Amazon, so I paid more for it and cannot return it.
19 of 20 people found the following review helpful.
Cheap hobby oscilloscope
By B. Walsh
I wanted a cheap oscilloscope as I played with my new Arduino kit and this is meeting the needs. Sure I would love a better user interface and more channels and more capability, but seriously, this thing costs less than $100. Have you priced out a "true" scope? A bare mininum real scope is going to cost you over $300. More capability will drive the cost WAY up. I am amazed what this thing does for the money. Apparently the V1 versions were literally repackaged MP3 cases, what a creative way to get a cheap pocket scope.
The company has developed a more capable scope, but I think it is over $250.
I will agree that the interface could be easier, apparently there is a firmware update on the website that people say helps a bit. I will play with that and see if things are better.
Realize the limitations (low voltage, one channel, clunky interface) and enjoy the extra money in your pocket.
Thanks,
BradmanOH
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