DSO Nano Pocket-Sized Oscilloscope Review
Price : $69.99
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DSO Nano Pocket-Sized Oscilloscope Feature
- It is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements, ideal for production test, research, design and education
- Color TFT LCD. Display Resolution: 320¡Á240. Display Color: 65K. Analog bandwidth: 0 - 1MHz. Horizontal sensitivity: 1uS/Div¡«10S/Div (1-2-5 Step).Vertical sensitivity: 10mV/Div¡«10V/Div (with ¡Á1 probe), 0.5V/Div¡«100V/Div (with ¡Á10 probe). Test signal: Built-in 10Hz¡«1MHz (1-2-5 Step).
- Max sample rate: 1Msps 12Bits. Sample memory depth: 4096 Point. Horizontal position: adjustable with indicator. Dimension (w/o probe): 105mm X 53mm X 8mm. Power supply: 3.7V Chargeable Lithium battery / USB.
- Coupling: DC. Trig modes: Auto, Norma, Single, None and Scan. Waveform storage: SD card. PC connection via USB: as SD card reader. Upgrade: by boot loader via USB.
- 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; Hold/run feature.
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Costumer review
10 of 10 people found the following review helpful.
DSO Nano V1: Impressive little device
By SSD
The DSO Nano v1 is a basic one channel digital (storage) oscilloscope with a practical bandwidth of about 100kHz. To store data (images of the waveform measured) a basic micro-SD card (up to 2GB) is required. Comes with the v3.1 firmware. There are some problems (e.g. inaccurately displayed values) with the pre-programmed functions (V-max, Vp-p, etc.) depending on the voltage range and time resolution settings. The saved waveforms seem to be scaled correctly though and can be analyzed post measurement. The slowest time setting with this firmware is 2sec/div. The Nano is supposed to be firmware upgradeable with the BenF firmware (which apparently would fix most of the problems noted and also enable 10sec/div. However, all my attempts to upgrade the firmware (using a PC w/ Windows XP Professional/SP3) and the instructions on the seeedstudio forum were unsuccessful (the Nano would not go in the firmware upgrade mode when connected to the PC and turning it on while pressing the "-" or any other combination of keys.) Basically, the Nano just shows up as a drive. Even so, it works well enough as it is so - a solid 4 star.
UPDATE 03/23/2013 (I): I have tried again to upgrade the firmware to BenF (see comments) and everything seemed to go okay until I restarted the unit, at which point it did display the BenF logo (see updated photo) but also it said that it could not find any app and it would just stay like that indefinitely. Thus, as of now, this, the latest of my attempts to update the firmware, essentially, seems to have rendered the device a total loss. Nevertheless, I'll keep the 4-star rating since the device was working okay before my messing with it.
UPDATE 03/23/2013 (II): Looking around on the web I found what seems to be the latest (?) firmware from the manufacturer of my oscilloscope (Minidso). It is a (hex) file (the file is labeled DSO201 v3.3 but the actual firmware displayed on the device is v.3.03). Not really sure if this is the latest firmware since the "minidso" site is in Chinese so it's hard to tell. In addition, the original firmware on my Nano was labeled v.3.1. However, the new firmware undid the failed BenF stuff and the oscilloscope is working again (seemingly just as well as before - though I did not test it thoroughly nor did I try to calibrate it). In any case, reading through the posts on the "seeedstudio" forum, it appears that the only DSO Nano V1 devices that actually work with the BenF firmware are those from Seeedstudio. The other devices out there (such as this one) use a different USB bootloader (or something) and different firmware and may not be compatible (it most certainly does not work with the DFuse utility). I may try to update the firmware in the future, but for now I'm just glad the thing is working again.
7 of 8 people found the following review helpful.
Good product for the bucks
By H. Rivera
Is a decent oscilloscope for the money
cool feature:
Singnal genretor: 10 Hz to 1Mhz.
store: SD card slot.
Inputs: professiobal probe.
No so well understood feature:
Although the bandwidth is 1 Mhz this no means that it could to show 1 Mhz electric signal, it is only the bandwidth (frecuency at which the signal in is attenuated to 3dB ), the oscilloscope can measure the frecuency upto 300 KHz but can show only to the screen a signal upto 100KHz, however it's so much what I can do wiht it.
4 of 5 people found the following review helpful.
wow very cool
By J. Messek
Came with version 3.01 software which seems to work very well, I was considering upgrading it with the BenF software but I don't see any need to and I don't think I could revert back to the original software if I did upgrade it. One note to make is to make sure you save your settings by pressing and holding the top run/stop key. When you save it, it will remember the settings the next time you turn on the scope. I have used oscilloscopes since the late 60's and this took a little getting used to.
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