Velleman WFS210 wireless oscilloscope for only £20 !

[Bicurico]

Hi,

Thank you a lot in helping me understand this.

In fact, I did not try changing the WFS210 software window size - of course I can stretch it.

Also, I was mentally blocked in thinking in terms of horizontal screen resolution - in case of an oscilloscope, it makes of course no sense: the more samples, the better and what you do with them is up to you. The problem was that I was using a composite video signal to test with and was trying to get exactly one scanline into my screen... 

I think I am now getting ready to actually start implementing something.

My next test will be to try some XY rendering. I will use a oscilloscope demo *.WAV file. Let's see what will happen. But for now I will hit the bed!

Regards,
Vitor

[IAmBack]

Got mine.

I managed how to make it work with my tablets. It appeared to be not straightforward to start it every time on my equipment. Now with little fiddling software starts every time. For those who may concern, I need to go to app manager, turn the app off (if it is running), next remove all data, and then start it again in normal way. Sometimes it needs to switch between normal and demo mode, bit finally starts every time.

I've noticed, that there is no difference in the plot with time base settings from 5us/div till 1us/div...
Anyone can confirm this? How it is on windows?(I'm quite reluctant to install sw and drivers on my laptop).

/edit/
Just pressed "autorange" button while 1MHz sinewave was connected to the input. This thing have switched to... 5ms/div, and displayed beautiful sine plot. What a excellent tool to demonstrate aliasing and Nyquist theorem!

[Avacee]

I've noticed, that there is no difference in the plot with time base settings from 5us/div till 1us/div...
Anyone can confirm this? How it is on windows?(I'm quite reluctant to install sw and drivers on my laptop).

That's confirmed as a bug by Velleman

https://forum.vellemanprojects.eu/t/wfs210-tested-and-this-product-has-issues-request-for-support-comment/27511/2

[sorenkir]

Following  Ian.M's advice, I have removed the DC-DC converter from the ADUM3160 based USB isolator and wired an USB cable connected to a phone charger:



This is working, the WFS210 is isolated from PC & bench ground and can be connected to test equipment and linked to the PC with the USB (without Wi-Fi):



Michel.

[CanadianAvenger]

I realize this is an old thread, but if anyone is interested the firmware is available on GIT (now).

https://github.com/Velleman/WFS210-Firmware


I picked one of these up off of a clearance shelf, and wanted to hack around with it. From this thread, it looks like there was at least some interest in the past from others doing the same. I think the hardware platform has potential to be useful for some applications, the current implementation sucks.

[djos]

I realize this is an old thread, but if anyone is interested the firmware is available on GIT (now).

https://github.com/Velleman/WFS210-Firmware


I picked one of these up off of a clearance shelf, and wanted to hack around with it. From this thread, it looks like there was at least some interest in the past from others doing the same. I think the hardware platform has potential to be useful for some applications, the current implementation sucks.

Mine died recently, so it's on the healing shelf for if I can ever be bothered digging into it.