DSO Touch Official Leak – Spec


Sorry for kept you waiting for the full spec, and you still wait for sometime to get a beta one.

Note: This is a brand new model not a major upgrade from previous Nano V3. We are planning to let it open source, but we want to hear you first.

Full menu system:



DSO Touch is a Digital Storage Oscilloscope designed for basic electronic engineering tasks. Within its smart shell, the device equipped with STM32, 8G flash memory and two analog channels, provides basic waveform monitoring with extensive functions. It fits in-field diagnosis, quick measurement, hobbyist projects and wherever convenience matters.

The main innovation of this product reflected in:

  1. It create a new user experience using oscilloscope with touch pad
  2. A perfect industrial design using least buttons, in a word: beautiful


  • l  Portable and lightweight
  • l  Color display
  • l  Waveform storage and playback
  • l  5 triggering mode
  • |  2 analog channels
  • l  2Mhz Analog Bandwidth
  • | 10MSa/s max sampling rate
  • l  Complete measurement markers and signal characteristic
  • l  Built-in Signal Generator
  • l  Accessories updated: better probe sets
  • l  Open Source


Display Full Color 2.8″ TFT LCD 65K 320×240
Analog bandwidth 0 – 2MHz
Max sample rate 10Msps
Sample memory depth 8192 Point
Horizontal sensitivity 1uS/Div~2S/Div
Horizontal position adjustable with indicator
Input impedance 1Mohm
Max input voltage ±40Vpp (by ×1 probe)
Coupling AC/DC
Trig modes Auto, Normal, Single, None, Scan
Rising/Falling edge trigger
Trig level adjustable with indicator
Trig sensitivity adjustable with indicator
Waveform Functions Auto measurement: frequency,cycle time, duty cycle,peak voltage, RMS voltage, Average voltage and DC voltage
Precise vertical measurement with markers
Precise horizontal measurement with markers
Signal Generator 10Hz~1MHz square wave(duty adjustable) or 10-20KHz Sin/Triangular/RAW wave
Power supply 600mAh Lithium battery / USB
Waveform Storage 8Mbyte
User Interface Capacitive touchscreen, swiping gestures
Math waveforms -A, -B, A+B, A-B, RecA, RecB

A first beta test batch(2 pcs) will be sent out to the chosen active customers who take the form last time, we’ll announce tomorrow.

There will be another test batch(10 pcs) near mid Sep. Some extra (50-80) would be available in our depot from Oct. There will be an pre-order then.

DSO Touch Official Leak – Industrial Design


A short review of DSO Family on industrial design.

IMG_7207IMG_7208 IMG_7209

The panel of DSO Touch is as big as DSO Quad. Due to the touchpad area, the screen of DSO Touch is smaller. But don’t worry, Touch uses a pop up menu system instead of using a fix menu system, which enables the same user experience.

IMG_7212 IMG_7213 IMG_7214

Very close result. You could see a little improvements on both the hardware inside and the enclosure outside.

IMG_7221 IMG_7223 IMG_7226

Wide and Slim, that’s how DSO Touch is designed to be the ultimate killer of electronic hobby and education.

We know you could expected it. Please focus on the next official leak – hands-on video. You can rss our blog or subscribe our newsletter to get latest news on it.

DSO Touch – No More, No Less


DSO Touch is designed to fit most of the hobby electronic experiments scenarios.

Here are the main features/specs of DSO Touch with a comparison of DSO Nano/Quad, and how it is designed.


the same resolution as Nano: 320×240, making it portable is still the main feature of DSO series. The TFT screen features nice effect with soft color, which is rare on equipment under 100 bucks.


Virtual broadband improves from 2kHz(DSO Nano v3) to 2MHz, What’s more, the max sampling rate rises from 1MSa/s(DSO Nano v3) to 10MSa/s. Which means it handles most of the problems you meet. Have you ever imagined you can have a 10MSa/s DSO in such size that it could slip out of your pocket? That’s how we did it.


As we all know, there’s one analog channel for DSO Nano, two analog & digit channels for DSO Quad. Since the digit channels are rarely used, they are cut off to leave space for DSO Touch. You can measure two signals and compare the difference now in real time!

The sampling storage depth is up to 8K, the probe is replaced with Mueller MCX Probe (similar to DSO Quad), making it the fittest with the power-up performance of DSO Touch.


A revolution which is much more difficult than the industry design and user experiences of DSO Nano/Quad. The gesture based control command is more human friendly, you can swipe to get the option as fast as you can.


We hope the human-centered design philosophy of DSO can really help in your daily life, replacing the old fashioned instruments from your workbench. Electronics can be arts, by presenting simple, elegant, practical and people-oriented designing.

Pre Order – WRTnode #OpenWRT Dev Board


Planned Shipment Date:  August 21, 2014
WRTnode is a high performance CPU, low power consuming, cheap, and samll dev board that can run OpenWRT OS and also easy to port all open source software.
Today, more and more devices could connect to internet, named Internet of Things. The WRTnode is a small node which could connect internet all by itself and do something complicated.
Why WRTnode
  • Opensource hardware for OpenWrt
  • mini Linux+Wi-Fi board
  • easy and completed IDE
  • low power-consuming
  • complete I/Os, high performance
  • 300MBit/s Wi-Fi and low price
Hardware Specification
  • MTK MT7620N 600MHz mips cpu (MIPS24KEc)
  • 512Mb DDR2ram
  • 128Mb spi flash
  • 2T2R 802.11n 2.4 GHz
  • 23GPIOs
  • 5-Port PHY (JTAG)
  • SPI
  • UART Lite
  • USB2.0

Open Source Hardware

open source openwrt github

The project is share on Github, you are welcome to join early.

DSOscilloscope – Join the DSO Instrumentality Project!

eva & dso

DSO series is one of the most successful products since the initiation of Seeed. The main story goes around DSO NANO – how we users can impact next hardware design !!!

Like Evangelion, every DSO got its name, code and specialty.

  • DSO Nano(code 201) – A handy scope for everybody – EVA00
  • DSO Touch(code 202) – The One – EVA01
  • DSO Quad(code 203) - 4 Channel Digital Storage Oscilloscope – EVA02

Something happened to DSO Touch, it tooks 2 years to finish the developing until now, we offer 2 DSO Touch Dev edition. If you think you are the best tester as Shinji Ikari to EVA01, please fill the form by 22th of August. We will release more detailed specs of the coming DSO Touch in the following days.


The free sample includes

  • DSO Touch Dev x1
  • Probe x1

Sorry, We only have 2 test samples here, you get more chances if:

  • you are old user of DSO Nano, especially to the APP contributors
  • more test chance to media next time
  • you don’t have to sign up next time for beta program, you got more chance if you sign up earlier

Test Only – What you need to do


As a beta-tester, you can

  • get tech support from Seeed Engineer(me)
  • contribute to the app, share your unique hacking

you need to:

  • writing unboxing, testing hardware and the app
  • feedback the experience using it

We will promote your project on blog! Be creative guys!

The making of RPi B+ cases – mix way

Recently we designed a new case for RPi B+. This time we tried a different way mixing laser cutting with CNC.

Here’s the preview of this case: which is made up of 4 acrylic pieces. This is different with the cases you seen: if it is made using laser cutting, it is usually in 6 pieces; if it is made using injection – it’s better unibody. ^_^


The upper body of the cases is bended, thus creating a rounded rectangle shape effect. It looks so much like it is made using injection-molded case.



To make the case, you need following equipment.

Laser cutting machine

  • Common and affordable in hacker space
  • Cutting the holes for RPi connectors

CNC machine

  • you need special knowledge to control the monster
  • Drilling the T-holes to fasten two sides

And a special guest: Acrylic Strip Heater

  • super-duper-awesome tool
  • heating a controlled strip zone of plastic(acrylic), it will become soft and pliable


Laser cutting


The upper part is much bigger, you have to bend it to make it into a shell over the base later. Here’s how it look in real:


To make you understand properly, here’s a comparison before and after it is bended.


See?! That’s the “magic bullet” here. The base is much simpler with some holes on it.

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You have to

  • drill a V-shaped slot where the plastic should be heated and bended
  • drill normal slot for two sides

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You may need to repeat several times to determine the best parameter to make the cases really nice together.

Heating & bending


I didn’t take a photo for this process, here’s a picture i found on google

T-Acrylic on Heater

The iteration



We tried different types acrylic, I like the frosted one best!



The chamfered side on the base, we removed the possible sharp edges.


Fasten the plates with rivets.


The side is installed seperately: like adding the game cartridge to your old FC.




Holes are reserved. ^_^

Inside wiki – First Impressions

I found an old wiki item which I like to share:

I have an “Electronic Brick” and it is quite good, and while the Grove cluster mode where the sensors etc are connected by cables is quite similar, for me the standout is the actual sensor boards “Grove units” and the way these are made in a very standard and modular way. I am also keen to get into the jigsaw mode where the Grove are directly connected together, but I’m not quite sure how to do that yet. … anyone know?

In an hour or so playing with the starter kit, I have got the LEDs, buzzer, relay and temp sensor working, thanks to the existing sample Arduino and Electronic Brick code.

Here’s a issue list in 2011

  1. Potential Possibility of shorting when you use Arduino Duemilanove with the Grove shield, where the analogue connector solder tails touch USB connector on Arduino Duemilanove.

    thx~ that’s why we use Mini USB for Seeeduino Series

  2. Hard to disconnect the Groves

    the clip is setup for you to plugin, you can never plug in when it’s in opposite direction. We never solved the problem.

  3. Bad position

If you find any problem like this, you can write about them in wiki, category it Unsolved.