DSO Nano actually a Economy Pocket Oscilloscope DS0201?

After just receiving my DSO Nano a bit of google’ing it appears to me that it is just a rebranded DSO201 with alot of info on this forum http://bbs.e-design.com.cn/bbs/index.asp?boardid=5 English Translation:http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF-8&sl=zh-CN&tl=en&u=http://bbs.e-design.com.cn/bbs/index.asp%3Fboardid%3D5%26page%3D&prev=_t&rurl=translate.google.com&twu=1&usg=ALkJrhh6EB0Fs2Kq78MilwoFFoDVLtDQdA

Ok well no problems there, I dont really mind. however this caught my eye:

From these pages:

Allthough I dont understand chinese, It would appear that the little “spikes” on the test signal square wave indicate the compensation capacitors need adjusting. (my nano has these spikes…) also it would seem this would cause problems with a x10 probe aswell? Perhaps seeedstudio guys can provide some info here? and a method for getting this scope accurate?


In my case the squarewave signal (1khz input without 10:1 probe) looks good on the nano. I verified it against a calibrated analog oscilloskope and use an external wavegenerator.

No overshoot to see over the whole input ranges, only a little bit overcompensated at some ranges … but no problem because i don’t expect perfect compensation for an unit like this.

The internal generator also looks good, and don’t produce any overshoots.

My DSO nano is an V1.1 unit with firmware 2.02 an board revision 1.3A (i think)

it shows how to adjust the overshoot of square wave , we have do this for you.

but just for the X1 . you can modify the compensation capacitor for X10 yourself .