Hardware :: Building System - Interface With Car Sensors And Controls
Jun 25, 2010
My parents have given me a free pass to play around with their old Saab 900 Turbo and what I'd really like to do is put a small linux computer in there as an experiment (and application, ultimately). For this to be a realistically useful project I really should make it interface with all the cars sensors and controls e.g. speedometer, fuel gauge, mileage, thermostat etc. I assume that since these are analogue meters they use an electromagnetic dial? It should be possible then (and without too much effort) to hook it up to an input device like the Arduino? I don't really know because it's been a long time since I studied electronics properly. I've already found a touch screen, I'm fairly sure I know what computer I'm going to use (SheevaPlug) and I'll probably use debian with xfce for the OS.
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Jun 16, 2010
I am looking to build a dedicated syslog-SNMP server with remote web interface and I would appreciate a discussion from our community on recommending the best solutions to deploy. I would like to be able to create an opensource architecture I could easily duplicate for multiple stand-alone customer environments.
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Mar 3, 2011
I can't for the life of me get the xsensors to work. I installed lm-sensors, the applet and also xsensors.I followed everything on this guide:URl... Went through it more than twice and a couple of restarts. I just can't figure out what's wrong.When I run "sensors" nothing is found. I ran the sensors configuration and it only found one device to add to /etc/modules. Please see the trace below, I would be very grateful if you can help me find the fix for this! The desktop is an HP Pavilion a730n with a Pentium4 processor.
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Jun 21, 2010
I would like to use lm-sensors with my new PC.With my old one lm-sensors showed all sensors of CPU, GPU, wattage and Fan.With the new AMD64 (kernel 2.6.32-5 on Debian Squeeze) I get only the temperature of the GPU and the HDD.The only found sensor is "Fintek F71882FG/F71883FG Super IO Sensors"No embedded "AMD [...] thermal sensors" found in sensors-detect How can I fix it?sensors-detect
Code:
#
# sensors-detect revision 5818 (2010-01-18 17:22:07 +0100)
[code]...
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Mar 17, 2010
I just recently changed my motherboard, and now the command "sensors" shows "no sensors detected" I ran sensors-detect but still i get no sensors detected.
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Oct 10, 2009
I am trying to build a system that will run both KDE and GNOME. I currently have just GNOME installed. So I need to install KDE and KDM (which I know how to do). The thing that I don't know how to do is make it default to KDM when it boots rather than GDM. Also I need a way to get rid of the GNOME apps in the menus in KDE and the KDE apps in the menus in GNOME. Also, this system in running Fedora 11 x86_64
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Jan 30, 2011
I've decided to build a new system. I been doing a lot of compatibility searches with little luck. I don't have a bunch of money to put into it but here is what I've been looking at. I have been very happy with Ubuntu 10.04 lts Lucid 32-bit version and thought I would install the 64-bit version on this. I would like your input on this system. Are there any compatibility problems here?
ASUS M4A785-M AM3/AM2+/AM2 AMD 785G HDMI Micro ATX AMD Motherboard
Model #:M4A785-M
Item #:N82E16813131595
XFX PVT94GYAJG GeForce 9400 GT 512MB 64-bit DDR2 PCI Express 2.0 x16 HDCP Ready Video Card
Model#: PVT94GYAJG
Item #:N82E16814150488
AMD Athlon II X4 640 Propus 3.0GHz Socket AM3 95W Quad-Core Desktop Processor ADX640WFGMBOX
Model #:ADX640WFGMBOX
Item #:N82E16819103871
Kingston HyperX 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 Desktop Memory Model KHX8500D2K2/4G
Model #:KHX8500D2K2/4G
Item #:N82E16820104073
Along with this I have 1-Sata 500G and a 1-Sata 250G hard drives that will be installed.
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Nov 2, 2009
Looking at building a system that basically just runs emulators (nes, snes, etc). Haven't messed around with linux for a couple years so I thought this might be a great project to get back into it with. Maybe.
Questions I have-
- How easy is it to have a linux installation that just boots directly into the emulator? Since it will be hooked up to a tv, I just want it to be as easy as turning on the power button and then I'm off.
- Is there a stripped down linux distro that would be best suited for this type of setup? Really any recommendations for a distro would be great.
- Its running on old hardware- 900mhz athlon, 512mb ram, geforce2 video. Will this be a problem if I'm trying to run something like i've described?
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Dec 31, 2009
In 2010 I want to build a new linux box. I currently have a dual-boot system...
IDE1 = WinXP 200GB Master
IDE1 = Opensuse 11.0 Slave 80GB
I have cloned both drives with CloneZilla (CZ) and restored with it aswell. My 80GB is a Western Digital Caviar Model (WD800BB-00JKC0). The drive I'm thinking of buying is a WD Caviar SE (WD800AAJB) [URL]. Will my restore images work with this drive? Its a 80GB but the model numbers differ. Does it make a difference?
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Oct 4, 2010
my workplace is switching from Oracle app server to Tomcat. I've never been a sysad, and never administered an app server. So that part is going to be completely new to me.ortunately, I don't have to be the primary on this - but my manager is encouraging me to learn the setup and how to do the job.So, my situation is that my test "server" is a P2 with 256MB of RAM. I know I'm not going to get screaming performance out of it, but all I really need it to do is run my web server and file server to support my Tomcat install on a separate box (P3, 2.8GHz, dual-core with a gig of RAM).
I'm not really a n00b to Linux, so building the system isn't a stumbling block. Which distro, and which version of that distro, is a stumbling block. I know ubuntu is easy to set up, and very popular. If I went that way, should I get the desktop version? Or the server version? I *want* the GUI, but don't require it. And I'm not real certain what they're referring to (hw or sw) when they call it "desktop" or "server".I'm not looking for a challenge to broaden my horizons in terms of my Linux knowledge - I just want something I can set up quickly so I can get on with learning what I need to about the server installation, configuration and administration.
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Jun 4, 2010
So far my experience with Ubuntu has been using it in Virtual-Box and as a Live CD and Live-USB. I currently have laying around a CPU/GPU/PSU so i bought the rest missing to build a new computer. I got two hard drives (640gig for Win 7 & 80 gig for Ubuntu). I have been told on [H]ardForum . com to use WUBI. That its not necessarily great for long term usage, but its best to use WUBI, get the hang of Ubuntu and dual booting and all that...and then eventually to try a more permanent solution.
For now i am curious is there anything i should know before I start? I bought Win7 64bit so i want to use Ubuntu 64 bit as well correct?
Are using WUBI and going into the Boot-Menu and starting using the 80gig HDD with Ubuntu on it, two different options? If so which is better in your opinion?
Btw to install WUBI , do i install windows, put in the CD and click install WUBI which auto pops up, and follow directions and just make sure to have it install Ubuntu 10.04 64bit on the 80gig hard drive?
One last thing, i have seen screen caps of a menu (that looks like a boot menu before you enter your OS) that has options like "use memtest to test your memory" and "Check Ubuntu CD for errors" ....how do i get to that? I would really like to be able to do both of those things.
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Jan 4, 2010
I installed the minimal-command line system from the kubuntu CD on my laptop, which is guess is roughly around 200mb after installation. I wish to install a Desktop Environment preferably KDE and I wanted to know how and where do I begin from? Do I need to have a working XORG prior to installation of KDE and do I also need to install Window mangers and e.t.c? What all packages/libraries and components do I need to install first? I'm really not sure where should I begin from.
Initially what I am trying to do is to have working GUI system,then later on I can install rest of the packages and software that I need, like office, GPU drivers, browser etc. Secondly,for a minimal KDE system,what metapackages are to be installed from this site? I believe kdebase, kdebase-runtime, kdebase-workspace are required. [URL]
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May 20, 2009
I have built a linux router with a pc having two network cards. I am running ubuntu 8.10.
I have enabled forwarding on the router. One network (192.168.1.0/24)is connected to eth0 and another (192.168.2.0/24) is connected to eth1.
The interfaces have addresses 192.168.1.1 and 192.168.2.1.
On any side side of the network, I can ping both interfaces on the router.
However when I ping a machine on the other side of the network, I get 100% packet loss.
I have not touched iptables on the router or any machines.
What I am doing wrong?
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Mar 25, 2011
I have been playing with chroot to build packages.I am wondering about the limits or caveats of using chroot to mix operating systems. For example, what should I beware if I use 12.2 and chroot a 13.1 system? Or if I use 13.1 and chroot a 12.2 system? After all, the chroot does inherit some attributes of the parent system.There is the noticeable difference of kernel versions. For that one reason I'm thinking that mixing system versions might be frustrating.
My focus is building packages, not running an alternate operating system or a service such as ssh. I realize that building packages as root in a chroot potentially compromises security but that is not my focus.I am aware that a chroot is not a true virtual system.A virtual machine is an option, but in this thread I'm curious about the limitations of chroot. I find building packages in my virtual machines much slower than actual hardware, even with a dual core. Hence my interest in chroot
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Mar 14, 2011
I have an Acer 4810T laptop with Intel graphics. I run openSUSE 11.3, and am about to upgrade to 11.4. But both systems still have a very bad bug with screen brightness. The Fn+Arrow keys do change screen brightness, but after using them the system is rendered extremely sluggish and unresponsive. This sluggishness is most pronounced with a very important Wine app I need to use. The only way to fix the sluggishness is to reboot. With 11.4, the problem is worse because the system boots and automatically partially dims the screen, thus making it even more necessary to change the brightness. Neither Gnome nor KDE are able to change the brightness via their power managers. This means that I can't dim my screen automatically upon disconnecting the A/C power.
I have read many experiences from Ubuntu and openSUSE users, who all have the same problem. I have tried both intellegacy and the new intel drivers, and they both have the problem. I have read that some users have improved the situation by upgrading or downgrading the BIOS. Others have been experimenting with kernel patches:
[URL]
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May 29, 2010
I just wanted to interface my linux system(centos,ubuntu) to the cd player thats fitted in cars so as to make use of the screen and cd player for other things.
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Apr 14, 2010
The subject has the big question. I've read answers both ways.The kernel has documentation that says the IP addresses belong to the system. Yet the configuration works as though they belong to the interface.Shouldn't we have it just one way and stick with it ... and make everything work that way?
If IP addresses truly belong to the system, then a command to configure an IP address should not need (and not even accept) the name of an interface. The only exceptions would be link-local addresses (which by their nature do suggest being interface specific ... and they should be autoconfigured by the kernel, anyway). Interfaces would only need to be brought up or down.
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Jan 10, 2010
I see there is a driver module for network card in my system. I have 2 identical network cards in my system the 1st one works well, but the second one.. My system refuses to create interface on it.... lspci
[Code]...
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Dec 10, 2009
I have b43 wireless. In network Configuration on system->administration the interface it appears as inactive it appers in hardware also as b43 associated to wlan0 but i cannot have access to any wireless network. What i have to do to put this b43 to work.
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Feb 14, 2010
I just had an ATT Uverse RG installed. However my Smoothwall router that previously worked fine with the ADSL SpeedStream is no longer accepting an address assignment DHCP ip address from this new gateway. (3800HGV-B)Any thoughts ideas or experience working with this hardware? ATT only supports Windows and Mac
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Jul 18, 2011
I have a ppp0 entry with post-up options like this
mapping ppp0
map none photon-plus motorola
map timeout: 12
[code]...
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Apr 11, 2011
i am using windows 7 in my laptop and linux is installed on virtualBox but my problem is the screen is showing small in virtualbox is there any way to enalarge the screen to show like windows screen? i did before by using VGA setting but it made problem me i was not able to use GUI interface i meant graphics interface
it was just showing me Command Prompt.
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Jan 6, 2011
After I ran sensors-detect, it said that İ needed k10temp module to be compiled, so I searched some forums and got required stuff. However, before compiling it, I added the gnome applet for sensors to the panel, and surprisingly it shows the cpu and motherboard temperatures. How reliable it is? Do I still need to compile k10temp? (I will compile it since I don't want to use a kernel from experimental repo).My kernel is 2.6.32-5-amd64, TestingCPU: AMD Phenom 2 x4 955 BE
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Jan 22, 2010
just downloaded gkrellm and I go to set the temperature sensors and I get "No Sensors Detected" now I've never dealt with something of this nature before so can anyone tell me where I might begin with this one?
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Apr 6, 2010
Im having some trouble getting sensors to work on kernel 2.6.33.
This is what i have at sysconfig under lm_sensors:
Code:
When i do /etc/init.d/lm_sensors restart i get this:
Code:
I know k10temp driver is now included on kernel 2.6.33 so i dont know what to do.
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Jan 14, 2010
i moved on ubuntu 9.10 Karmic, before on 9.04 All sensors work fine but now only "coretemp".so ran "sudo sensors-detect" and output result is:
Code:
#----cut here----
# Chip drivers
[code]....
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May 6, 2010
I had previously installed lm-sensors and the associated files on my Lattitude 2100 when I was running 8.10 and got a great little bargraph readout thing at the bottom of the screen that helped me monitor system temperatures. Now that I've upgraded to lucid lynx netbook, I can't seem to get the same thing going. I installed the lm-sensors etc. but the applet/readout/display whatever you want to call it, is nowhere to be found.
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Dec 6, 2010
control my cpu fan speed? It's really loud, and I'm not stressing the CPU at all, but it seems to be running at 110% all the time.
I've tried going through some old posts related to lm-sensors but nothing seems to work.
I'm using an Asus motherboard (M4A88TD-M), an AMD 1075t six-core processor, and I have Ubuntu 10.10 installed. Ive run sensors-detect, followed the onscreen prompts... the output looks like this:
Code:
# sensors-detect revision 5818 (2010-01-18 17:22:07 +0100)
# System: System manufacturer System Product Name
# Board: ASUSTeK Computer INC. M4A88TD-M EVO
[Code]....
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Dec 29, 2010
I have tried lm-sensors and a few others, firefox just crashed.
Phenom II X6 1090T
MSI-890FXA-GD70 motherboard
Ubuntu 10.10
Senors:
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +0.0C (high = +70.0C)
sensors-detect
Now follows a summary of the probes I have just done. Just press ENTER to continue:
Driver `k10temp' (autoloaded):
* Chip `AMD Family 10h thermal sensors' (confidence: 9)
No modules to load, skipping modules configuration.
Unloading i2c-dev... OK
There is a debugging panel on my motherboard, and I think that that displays the CPU temperature, although I am not sure.
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Apr 14, 2011
I installed lm_sensors via Synapt & the Sensors Applet on the panel, but that applet shows me an invariable 40�C for 2 temperatures - 'CPU' & 'temp1'.Now I know it can't read the CPU temperature (long story, the CPU fan is hard-wired to 6v & there is no temperature feedback...) but it should be able to find a couple of other useful temperatures.The same PC in XP uses Speedfan which indicates plausible temperatures for (I think) Case & Hard Drive. (Temp2 & HD0 in the attached)I wonder what I have failed to do & why I cannot see Case or HD temps in Ubuntu?In terminal, I ran sensors-detect which went OK until the last bit where it said:
"~$ /etc/init.d/module-init-tools start Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service module-init-tools start...etc" I don't follow that, but I have checked that I have it87 in both /etc/modules & in lib/modules/.../hwmon
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