search for: oscilloscopes

Hi R-Devel, I've been working on an oscilloscope project using an Arduino microcontroller board. I found that it's quite easy to get realtime updates, e.g. 30+ frames per second, if I read data from the board in a little Rcpp library. I have to use dev.hold() and dev.flush() to keep the plot from flickering, which restricts me to the "cairo" X11 device. I'd like to be able

Anybody sucessfully got stable 1000Hz clock without Digium harware and kernel 2.6? We need to consult some peoples how to clock asterisk stable with exactly 1000 Hz without much kernel/drives patching/tweaking. Some test results we made so far: 2.6 with digium card - stable 1000 Hz. 2.6 with ztdummy - uses RTC and the clock is 1024, not 1000. 2.6 with some Realtime kernel patch - provides stable

I was curious what R packages, or indeed any other applications, exist to plot streamed data from arbitrary data generators. It need not be publication quality plotting but it should be easy to use like an oscilloscope. I was working on something called datascope that I am using for 1D finite difference monitoring and recently interfaced it to freefem. I also created an R package. If there is

... I just realized that setGraphicsEventHandlers or getGraphicsEvent could have an 'onIdle' callback, to be called somewhere in the polling loop of gevents.c:163 - I think this would solve my problem #2 in a minimally disruptive way. On Mon, Jun 06, 2016 at 06:38:45PM -0700, frederik at ofb.net wrote: > Hi R-Devel, > > I've been working on an oscilloscope project using an

Hello, I installed Electronics Workbench 5.2 (old version, but I have to import some work which I did using it) on Wine, mostly it works well, but: - When I close it, it enters an Access Violation/"Internal Error" loop. - Can't see text in some controls. For an example, check this image: http://img14.imageshack.us/img14/2707/75952076.png The controls in the 'Oscilloscope'

OPTAscope was produced by Parallax in 2002, but has been discontinued. It's a USB PC Oscilloscope. I used WINE to install it OK, but can't get hardware connected. Using Ubuntu 8.10. Here is how a normal windows install goes. Install software, plug in hardware, "New Hardware found", then go to Device Manager and find port the device assigned. In my case, it was port 3. Go back to

Hi, One of my APC devices reports: "unacceptable utility voltage rate of change". I believe it has something to do with input voltage fluctuating too fast maybe even beneath or over the input voltage thresholds. Should I worry about this? should I measure input voltage? (I suppose I'd need more than multimeter readings. Maybe an oscilloscope or a multimeter that can record

Hi Frederik, >>>>> <frederik at ofb.net> >>>>> on Tue, 7 Jun 2016 15:20:05 -0700 writes: > ... I just realized that setGraphicsEventHandlers or > getGraphicsEvent could have an 'onIdle' callback, to be > called somewhere in the polling loop of gevents.c:163 - I > think this would solve my problem #2 in a minimally

Hello! Given the current discusison regarding ztmonitor, line testing, etc., I've been looking into purchasing a used transmission test set. From my research, it seems that there are two items that might fit the bill: the HP 3551A and the HP 4935A. I know nothing about these specific devices. I *do* have a good background in electronics, and I understand the concept what they're

I have a couple of oddities that I hope someone here can clarify for me. OS = CentOS-5.2 all updates applied to date. 1. On the gnome desktop in the top panel (or menu bar) I have an icon for "System Monitor" which runs the application "gnome-system-monitor". On my other desktop CentOS-5.2 system I have the same thing. However, one one system the icon gives me a real time

Hi All. Yesterday I was installing Centos 5.5 to my web server, and it looks like the main hard drive has gone AWOL. Fedora 12 put the file system into r/o mode. The drive is an Hitachi, still under warranty. There are bad sectors on it, and running the Hitachi DFT tool confirms this. Also I cannot repair the bad sectors. Would this be caused by a faulty I/O chip, or is it safe to say

CentOS Errata and Bugfix Advisory 2016:0208 Upstream details at : https://rhn.redhat.com/errata/RHBA-2016-0208.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 3a24bcda6239f7c68f1757d8bfd407219f4e48fc25a22f55a2d5c5ec9005e77a oscilloscope-0.11.1-12.el7_2.noarch.rpm

Hi, I am interested in nouveau tv-out support. I read http://nouveau.freedesktop.org/wiki/TestersWanted and make nvclock dump with working tv-out on nvidia drivers. xorg.conf and nvclock output are in attachments. I have free saturday evening every week, so feel free to instruct me, I like to help) Also I have some expirience in C and generic knowledge about xorg video drivers, so you may ask

Wine does great job for GUI on screen (PC Oscilloscope) But, can't USB connect to external hardware device that has FTDI 245AM chip in it. See device in /dev/ttyUSB0. See device in lsusb, also in lsmod. Did normal linking, ln -s /dev/ttyUSB0 /.wine/dosdevices/com3. No luck. See the link with: ls -al of dosdevices. Using COM3 because in Windows registry in Wine, it says COMPORT=3 Any help?

Thought I would post this experience to the list so it's archived for posterity... My company is deploying Asterisk-based PBX's to all of our branch offices. Each office has 2 analog Voice lines and a fax line. We didn't want to go to the expense of using TDM400's in the servers (which run asterisk and Hylafax) so we opted for 2 X100P cards in each box. So far they have

Hi, Can anyone shed some light on this: My PC's are on a separate power circuit. Each PC has its own UPS. I have an old Honda generator. When the power goes out, I fire up the generator. However, the UPS's still run on battery. If I connect the PC directly to the socket and bypass the UPS, the PC works. I was told by a UPS supplier, that the power output from the generator was

I am new to this mailing list. I apologize if any needed information is missing. I know this is a bit much to ask of wine's current serial port implementation, I am hoping someone has maybe figured this out already? Or can help me further the debugging process, I'd rather be part of the solution then simply another complaint about wine's serial port. ***** problem description

...to find a well-connected network that rents out a few of the better-known SIP testing tools to beat on Asterisk installations in remote places for short periods of time. But this has always been the case... test gear is a small market, and expensive. Just look at the MSRP of new high-end HP Oscilloscopes if you want to get a picture of price-gouging. JT At 11:21 AM -0800 2/2/06, William Boehlke wrote: > >Signate has claimed 5,000 streams, or 2,500 calls, on a single Telephony >Server 5000. The throughput has little to do with Asterisk and a lot to do >with hardware design and opera...

Hello, I resolved my echo issue using grandstream/estara etc etc sip phones and wcfxo interfaces from digium. I swapped out my via kt400 based msi kt4vl motherboard for an asus p4pe? i845? based motherboard and the echo has completly gone away along with aggressive suppressor option in the makefile. I hope this helps others. Brian J. Schrock Anistone Technologies, LLC 6926 Avery Rd. Dublin, OH

First let me introduce myself: Sr Computer Scientist 20+ yrs SW/HW development Audio Rookie < 60 days Intel based computer Soundblaster 128 PCI Linux Fedora Core 2 ALSA - Advanced Linux Sound Architecture ALSA provides the audio and MIDI functionality to the Linux operating system as of Fedora Core 2 and is the future of Linux (so I have been told) http://www.alsa-project.org/ I have read