A portable-Oscilloscope base on STM32 (OPENSOURCE) Schematic

Archive New Product Ideas
1

DSO201is a pocket size digital storage oscilloscope fulfills basic

electronic engineering requirements. It is base on

ARMCortex™-M3compatible 32 bit platform, equipped with 320*240 color

display, SD card capability, USB connection, and chargeable batteries.

Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform

viewing, pocket size and over 2 hoursbatteryoperation. This DIY kit is

aopen source code. The Schematic, PCB layout and program code is free

for re-design. It is ideal for production test, research, design and

education.

Specification

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～10V/Div (with ×10 probe)

Vertical position adjustable with indicator

Input impedance >500KΩ

Max input voltage 80Vpp (by ×1 probe)

Coupling DC

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

Hold/run feature

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) 106mm X 55mm X 9.9mm

Pc connection: Mini USB B-Type

2

Very nice product. Good idea to use SP3232 as a +5/-5v power supply, but why haven’t you connected a com port on it to provide a RS232 interface for free, even if it is not on a DB9 connector?

Angelo

3

Hi zhudi99 - this looks great! What is the connection to the DSO-Nano?

http://www.sparkfun.com/commerce/produc … ts_id=9625

Looks like it’s the same project that Seeed is working on.

Is this your project or something you found? I’m just trying to figure out all the background connections.

Cheers,

-Nathan

4

Looks slick.

Willing to divulge any details about the internal construction and enclosure? Is this custom or off the shelf?

5

Hi Nathan,

I just know it in a chinese BBS. Http://bbs.e-design.com.cn/

6

Blackfin:
Looks slick.

Willing to divulge any details about the internal construction and enclosure? Is this custom or off the shelf?

Doesn't look custom - looks like they used an MP3 player case and gutted the internals.
7

sparky:
Hi zhudi99 - this looks great! What is the connection to the DSO-Nano?

http://www.sparkfun.com/commerce/produc … ts_id=9625

Looks like it’s the same project that Seeed is working on.

Is this your project or something you found? I’m just trying to figure out all the background connections.

Cheers,

-Nathan

Nathan,

The DSO-Nano from Seeed Studio is a rebrand of the Chinese DSO201 that was posted in the first post. They’re identical units. I believe that Seeed is using different firmware, though I’m not sure. I know that they released older versions of their firmware in their forum, and many users have created GUI upgrades. But otherwise it’s a rebrand of the DSO201.

-robodude666

8

zhudi99:
Hi Nathan,

I just know it in a chinese BBS. Http://bbs.e-design.com.cn/

hi zhudi99, your link is dead, i found a new product called DSO203, i think it would be the updated version of DSO201, you people can have a look at this link: [http://www.diyertool.com/dso203-pocket- ... -nano.html](http://www.diyertool.com/dso203-pocket-sized-digital-oscilloscope-arm-dso-nano.html)