Digital oscilloscope Project

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miniK0bo

Joined: 16 Jul 2005
Posts: 12

27 Sep 2008 10:41 handheld oscilloscope circuit

Regarding the JYETECH oscilloscope, I have bought a few of them, and I am very happy with it. Although it is not a high end scope, it is fun to play with it. And besides, you can use it as a development board, reprogramming the AVR to do other things. A template file is include for easy development!

There is a new English website, so for more information you can go to:
http://www.jyetech.com/en/default.html

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peezmt

Joined: 17 Jun 2008
Posts: 11

30 Sep 2008 4:28 low speed osciloscope project

OK Please Know me about PIC18F4550 USB Oscilloscope

saranyak_ece

Joined: 17 Jul 2008
Posts: 22
Helped: 5
Location: chennai

30 Sep 2008 20:00 pc base oscilloscope schematic

http://www.chocbar.demon.co.uk/

peezmt

Joined: 17 Jun 2008
Posts: 11

14 Oct 2008 7:25 oscilloscope avr usb fpga

I didn't achived your links
Please Links again

so_nices

Joined: 23 Oct 2008
Posts: 4

23 Oct 2008 15:57 oscilloscope usb scheme pcb

Hi, i am designing Digital oscilloscope using Spartan3 + AIO1 as ADC. I am not sure how to measure the freq and voltage, so i can display it on the VGA output. Can anyone advise please.

Thanks you very much Very Happy

the kolonel

Joined: 31 Oct 2008
Posts: 1

31 Oct 2008 19:30 30mhz pc based osciloscope circuit

Hi all,

Doe anyone have some code for the soudez-oscilloscope (http://www.soudez.be/joomla/content/view/12/27/lang,en/). I think this is a very intereting project, but I can't find the code anywhere...

Thanx in advance!

T.K.

Giuss

Joined: 16 Oct 2006
Posts: 38

10 Nov 2008 21:31 www.soudez.be/joomla/index.php

ray0812 wrote:

An AVR scope built by Chinese. Only 2MS/S but very simple and cheap. Good for hobbists who don't need high frequency.

I don't find anymore the schematics diagram... do you have it?

miniK0bo

Joined: 16 Jul 2005
Posts: 12

23 Nov 2008 9:53 avr usb scope

Giuss wrote:

ray0812 wrote:

An AVR scope built by Chinese. Only 2MS/S but very simple and cheap. Good for hobbists who don't need high frequency.

I don't find anymore the schematics diagram... do you have it?

for schematics and more info, see website:
http://www.jyetech.com/en/default.html

I think you won't be able to build it yourself for that price.

Giuss

Joined: 16 Oct 2006
Posts: 38

27 Nov 2008 22:12 oscilloscope pc project

I don't find schematics.... do you know here are?

I don't want to build it but only to understand how it works

Bye

avra

Joined: 22 Oct 2001
Posts: 28
Location: Serbia

31 Jan 2009 1:41 jyetech scope problem

What is the price of AveScope and when will it have english?

ganzziani

Joined: 05 Feb 2007
Posts: 7

17 Mar 2009 14:44 fifo scope projects

These are my digital oscilloscope projects:

COMA: The All in One Instrument:
http://www.gabotronics.com/COMA.htm

AVR MultiKitB:
http://www.gabotronics.com/multikitb.htm

Last edited by ganzziani on 18 Mar 2009 1:47; edited 1 time in total

miniK0bo

Joined: 16 Jul 2005
Posts: 12

18 Mar 2009 0:38 dso using atmega8

WOW!

Looks really nice! You must have spent a lot of time making it all work like this! What do you use the SDCard for actually?

ganzziani

Joined: 05 Feb 2007
Posts: 7

18 Mar 2009 1:53 build your own digital oscilloscope

Yes, the Microchip contests started a year ago. The SD Card is not implemented yet but it will be used to store waveforms, custom applications, formulas, etc...

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18 Mar 2009 1:53 Ads

kip

Joined: 24 Mar 2009
Posts: 3

25 Mar 2009 6:09 simple digital osciloscope

hi all
I am designing a digital storage oscilloscope based on FPGA ..... I dont know how to start the project...please help me out

miniK0bo

Joined: 16 Jul 2005
Posts: 12

29 Mar 2009 16:35 pocket scope avr

Hi Kip,

You can start reading this thread from page one, that is what I did. Some years ago forum member monnoliv made a nice design. You can read all about it on his website:
http://www.soudez.be/joomla/content/view/12/27/lang,en/

I started my own oscilloscope as too, and last week I received my PCB's for the analog front-end. This front-end is heavily based on the design of monnoliv. Here is a preview of what the final product should look like.

kip

Joined: 24 Mar 2009
Posts: 3

02 Apr 2009 10:35 tlc5540 parallel port

Thanks!! 4 the help...... I have started the project and i am having problem in implementing the triggering mechanism ...can u plz tell me smthing about
triggering and how u incorpoated it in your design

miniK0bo

Joined: 16 Jul 2005
Posts: 12

03 Apr 2009 0:10 fast adc for homemade digital oscilloscope

I haven't implemented anything yet. I just made some hardware stuff. But what I would imagine is that the samples come in in a sort of FIFO way. And when you get a trigger, you will use that point as the middle of you sample data set.

What kind of problems did you encounter, and what does your hardware setup look like?

kip

Joined: 24 Mar 2009
Posts: 3

03 Apr 2009 15:19 free design digital oscilloscope

We have not worked on the hardware part ..... we have implemented memory and triggering mechanism in our design .... we are not sure about our hardware part yet ....... we are right now working on designing the modules for FPGA.......

yus

Joined: 14 Feb 2009
Posts: 45
Helped: 2

06 Jun 2009 13:28 gameboy advance oscilloscope

Wireless Oscilloscope using Nokia 6120c,
National Semiconductor LMX9838 Bluetooth module and Zilog Z8F0822 mcu.

Link

*currently migrating (both code and hardware) from zilog mcu to dsPIC33F DSC, for faster ADC sampling.

CMOS

Joined: 06 Jan 2004
Posts: 808
Helped: 39
Location: USA

07 Jun 2009 22:53 diy simple digital oscilloscope

yus wrote:

Wireless Oscilloscope using Nokia 6120c,
National Semiconductor LMX9838 Bluetooth module and Zilog Z8F0822 mcu.
*currently migrating (both code and hardware) from zilog mcu to dsPIC33F DSC, for faster ADC sampling.

Looks cool but whats the bandwidth ?

Kripton2035

Joined: 19 Jul 2001
Posts: 576
Helped: 20
Location: Earth

08 Jun 2009 7:53 fpga computer oscilloscope

why do you think he doesnt go up to 1khz in the demo ... Sad

yus

Joined: 14 Feb 2009
Posts: 45
Helped: 2

08 Jun 2009 8:39 pc oscilloscope circuit drawing

@CMOS and Kripton2035

in the previous hardware, the MCU (zilog z8f0822) I used is only capable of up to around 70ksps.. Sad

right now I'm still building the improve circuit using a dsPIC33F dsc (instead of an mcu),
which has ADCs' capable pf up to 2Msps (x2 channels).. Very Happy

hopefully it will give a better resolution..

also, with regards to bandwith, the amplifier part of circuit is also limited by the OpAmp used.. (I'm only using 3MHz bandwidth opamp Sad

)

yus

Joined: 14 Feb 2009
Posts: 45
Helped: 2

21 Jun 2009 10:27 c8051f321 osciloscope firmware

update..

Link

miniK0bo

Joined: 16 Jul 2005
Posts: 12

27 Jun 2009 10:07 avr scope built by chinese

@yus, good job, really nice project! Would be fun as a DIY for first year EE students Smile

millwood

Joined: 02 Jul 2009
Posts: 121
Helped: 11

03 Jul 2009 12:05 usb_oscillograph2

yus wrote:

update..

Link

yus, that's very impressive.

I suppose if you can also use a bluetooth-capable notebook in place of the phone?

that would be sweet: the mcu will just be a dedicated adc front-end and the notebook taking care of the display / analytics. a very powerful combination in my view.

Added after 8 minutes:

to take yus's idea in another direction: wouldn't it be easier to just take the front end, use the mcu to drive a usb to communicate with the host computer? the usb also supplies power to the front-end.

that shouldn't be too difficult, right? any suggestions?