What functions in a oscilloscope are necessary? Does this one have all of the necessary functions or does it have more functions than I will use? Is it good enough?
I suppose I will need a tutorial on how to make some good use out of it.
Well, this thing really isn't the "scope", it's just the stand. I guess you could hang some clothes with it when your not using it on the bench!
The DSO Nano is pretty cool for what it is and if you happen to be a gadget junky... IT's A MUST!
As far as functions in a scope that are necessary... well, that depends entirely on what you need to do. I "rarely" need one so I had been looking for something like this for a long time (no space for a bench top unit).
The DSO Nano handles all the basic operations of any o-scope. Is it good enough?... Again, that falls back to my first answer, entirely up to what you are doing.
I can tell you that it is very easy to navigate through the menu. The display is very pleasing on the eyes and easy to read the waveforms. It has nice vertical and horizonal markers.
It's a simple 1MHz bandwith scope. It is a one channel o-scope but has a memory trace that you can use to compare two signal responses (must use memory card). I do a lot of stuff in the audio range so it has come in handy for me. It has also been able to handle anything I have done with any of my microcontroller projects. When I can no longer watch my LED's blink on and off... out comes the scope!
It also measures DC voltage better than my little analog volt meter so I am happy with that.
As far as a tutorial goes, I have done a few searches to find a nice review on all the features and I am suprised that I couldn't really find any. Most of the videos and write-ups only focus on the unit as someone is taking it out of the box and powering up for the first time, not really putting it to the test. Instead of trying to do a long write up on the unit, let me suggest a couple links that are probably more in depth than most:
http://www.justblair.co.uk/seeed-studio ... eview.html
http://robotics.ong.id.au/2010/01/seeed ... pe-review/
These are older reviews and there have been minor changes made to the unit since (i.e. the battery does not need to be "soldered" in - just snap the connectors together).
There are plenty of others but maybe soon I'll sit down and make a short video and write-up myself (because I don't like what I have seen so far).
The software is open source and there are a few things you can do to "upgrade" it (so to speak) but I have done none of those since I purchased mine. It works great as is and I don't need anything more.
Below are the features/specs which might do more for answering your questions than anything I can tell you:
Display 2.8″ Color TFT LCD
Display Resolution 320×240
Display Color 65K
Analog bandwidth 0 - 1MHz
Max sample rate 1Msps 12Bits
Sample memory depth 4096 Point
Horizontal sensitivity 1uS/Div～10S/Div (1-2-5 Step)
Horizontal position adjustable with indicator
Vertical sensitivity 10mV/Div～10V/Div (with ×1 probe)
0.5V/Div～100V/Div (with ×10 probe)
Vertical position adjustable with indicator
Input impedance >500KΩ
Max input voltage 80Vpp (by ×1 probe)
Trig modes Auto, Norma, Single, None and Scan
Functionalities: Automatic measurement: frequency, cycle, duty, Vpp, Vram, Vavg and DC voltage
Precise vertical measurement with markers
Precise horizontal measurement with markers
Rising/falling edge trigger
Trig level adjustable with indicator
Trig sensitivity adjustable with indicator
Test signal Built-in 10Hz～1MHz (1-2-5 Step)
Waveform storage SD card
PC connection via USB as SD card reader
Upgrade by bootloader via USB
Power supply 3.7V Chargeable Lithium battery / USB
Dimension (w/o probe) 105mm X 53mm X 8mm