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by obcd
Tue May 14, 2013 9:07 am
Forum: Nederlands
Topic: PI werkt niet (opgelost)
Replies: 15
Views: 10515

Re: PI werkt niet (opgelost)

Het hangt er van af welk os je gebruikt.
Bij de klassieke pi debian heb je een tool raspi-config waar je de meest courante instellingen kunt wijzigen.
sudo raspi-config
by obcd
Tue May 14, 2013 6:38 am
Forum: Troubleshooting
Topic: Dead Raspberry Pi ?
Replies: 4
Views: 2488

Re: Dead Raspberry Pi ?

There is a linear voltage regulator that reduces the 5V to 3V3. The power led is connected to that 3V3 power rail. It's relatively easy to measure that voltage on one of the regulator pins. If it's the regulator itself that is defective, you might be able to replace it. If something is shorting or o...
by obcd
Mon May 13, 2013 3:53 pm
Forum: Troubleshooting
Topic: R31 resistor popped off the PCB
Replies: 7
Views: 1497

Re: R31 resistor popped off the PCB

You shouldn't revert the settings. You should leave the serial port as general purpose serial port. If you use a terminal program like minicomm, every character you type is sent out on the serial port, and every character that is received on the serial port is printed on the terminal window. So, if ...
by obcd
Mon May 13, 2013 6:54 am
Forum: Troubleshooting
Topic: R31 resistor popped off the PCB
Replies: 7
Views: 1497

Re: R31 resistor popped off the PCB

An easy test would be connecting TXD 2 RXD. If you open a terminal program, everything you type should appear on the screen as the characters sent out are also coming in again. Some things like correct baudrate and data format settings aren't checked like that. What interface did you use to connect ...
by obcd
Sat May 11, 2013 4:19 pm
Forum: Troubleshooting
Topic: Calling with a 3G modem
Replies: 8
Views: 10513

Re: Calling with a 3G modem

Just did some reading. It seems that some providers have separate sim cards for gsm data and fax. Those usually give you 2 different phone numbers. One is used for voice calls and the other for data calls. So it might be perfectly possible that your sim card works for voice calls and gprs, but that ...
by obcd
Sat May 11, 2013 3:08 pm
Forum: Troubleshooting
Topic: Calling with a 3G modem
Replies: 8
Views: 10513

Re: Calling with a 3G modem

My mistake. The example I was giving should generate NO DIALTONE and not NO CARRIER which is basically just an universal way to tell that the connection couldn't be made. According to my Siemens TC35i AT command set, the ; makes the modem return to command mode directly after the dial command. This ...
by obcd
Sat May 11, 2013 1:21 pm
Forum: Troubleshooting
Topic: Connecting to the Internet with ICS
Replies: 7
Views: 4776

Re: Connecting to the Internet with ICS

Simply find a tutorial about how to share an internet connection on a pc with windows 7. Instead of connecting a network, other pc's to the lan adapter, simply connect the Pi. The PC should have a DHCP server running, so the Pi should receive a DHCP IP adress from it. You can run ifconfig on the Pi ...
by obcd
Sat May 11, 2013 1:09 pm
Forum: Gaming
Topic: windows 3.1 gaming?
Replies: 7
Views: 4030

Re: windows 3.1 gaming?

It's a little offtopic, but scummvm has a lot more engines than just "SCUMM".
It started with SCUMM and got it's name from there.
If you are looking for point and click adventure games, it's the way to go.
by obcd
Sat May 11, 2013 1:00 pm
Forum: Troubleshooting
Topic: Calling with a 3G modem
Replies: 8
Views: 10513

Re: Calling with a 3G modem

Before gprs existed, you had gprs data that looked more like a normal modem to modem connection. Maybe your weather station is still using that? Adding a ; after a dial command means that the modem isn't waiting for a carrier signal before it starts to dial. If your modem has a gprs or umts connecti...
by obcd
Sat May 11, 2013 12:00 pm
Forum: Troubleshooting
Topic: Calling with a 3G modem
Replies: 8
Views: 10513

Re: Calling with a 3G modem

You can't simply dial a device to exchange data. You need to create a 3G internet connection (Which is what Sakis3g does) After that, you need to create a network connection with the other device. The device can have a tcp server running and listening to a specific port. If that's the case, you need...
by obcd
Wed May 08, 2013 10:40 am
Forum: Nederlands
Topic: Beeldscherminstellingen niet verkrijgbaar?
Replies: 7
Views: 4796

Re: Beeldscherminstellingen niet verkrijgbaar?

Ik weet niet hoe het zit met de Dvi ingang van een monitor, maar bij analoge VGA monitoren werd de sleep stand onder andere geactiveerd door de synchronisatie signalen uit te schakelen van de videokaart. De monitor detecteerde dit en ging na enkele secondes in slaapstand. Ik vermoed dat een resoluti...
by obcd
Tue May 07, 2013 8:13 am
Forum: Troubleshooting
Topic: Serial problem on CPU load
Replies: 2
Views: 426

Re: Serial problem on CPU load

What baudrate are you using? Is the device continously sending data or sending it in bursts? Most uarts have a fifo buffer. Within regular intervals, that buffer needs to be cleared or an overrun will occur causing the system to lose bytes. Usually, an interrupt is generated to inform the system tha...
by obcd
Tue May 07, 2013 5:52 am
Forum: Troubleshooting
Topic: Hardware Locks up Randomly
Replies: 3
Views: 525

Re: Hardware Locks up Randomly

Normally the procedure is to request an RMA and exchange the unit under warranty.
Some people report that heat makes a difference. But even if you know the unit works longer if you keep it cool, it's not a solution. It just proves for sure it's a defective unit that needs replacement.
by obcd
Tue May 07, 2013 5:46 am
Forum: Troubleshooting
Topic: What am I doing wrong?
Replies: 6
Views: 950

Re: What am I doing wrong?

Both times if I try to to go menu and change monitor settings it always says Could not get monitor information. changing monitor settings is done by altering the /boot/config.txt file. The Elinux website has plenty of information about all possible settings for that file. Your question is scaring p...
by obcd
Mon May 06, 2013 4:27 pm
Forum: Troubleshooting
Topic: *Powered* VGA-to-HDMI Drawing Power - Can Settings Help?
Replies: 8
Views: 2230

Re: *Powered* VGA-to-HDMI Drawing Power - Can Settings Help?

A poor quality hdmi cable can cause interference with the wifi adapter. Another thing you do is actually grounding the Pi when you connect it to the monitor. There is one pin on the hdmi connector that can draw current, but if it's drawing 2 much it will fry a diode on the Pi. If a video convertor h...
by obcd
Mon May 06, 2013 7:13 am
Forum: Troubleshooting
Topic: What am I doing wrong?
Replies: 6
Views: 950

Re: What am I doing wrong?

The monitor information is a signal that is available on the hdmi connector (CEC). If you use a hdmi2dvi cable, you will loose it. Due to that, it's possible that the Pi outputs a video resolution that your monitor or tv can't display. Especially games can use the opengl es of the Pi that might swit...
by obcd
Mon May 06, 2013 7:03 am
Forum: Troubleshooting
Topic: Laptop to pi problems
Replies: 3
Views: 426

Re: Laptop to pi problems

You have to check your firewall settings and allow incoming ICMP packets. We will need your laptop Os version for more details.
by obcd
Mon May 06, 2013 6:59 am
Forum: Troubleshooting
Topic: *Powered* VGA-to-HDMI Drawing Power - Can Settings Help?
Replies: 8
Views: 2230

Re: *Powered* VGA-to-HDMI Drawing Power - Can Settings Help?

The thing you are showing on Ebay is a convertor from VGA to HDMI. I have no idea how you can use such on the Pi. Assuming you want to connect your Pi to an Analog Vga screen, you will need a HDMI to VGA adapter which converts the other way around. There is no setting that will make it work automagi...
by obcd
Sun May 05, 2013 6:17 am
Forum: Troubleshooting
Topic: Remote control with putty isn’t working
Replies: 4
Views: 695

Re: Remote control with putty isn’t working

When you plug the Pi in, what behavour do you see on it's leds?
Without a keyboard and screen, it will be difficult to troubleshoot.
A composite video in on a pc can also function as a screen.
by obcd
Sat May 04, 2013 6:26 am
Forum: Troubleshooting
Topic: Raspberry Pi stopped working - will not boot
Replies: 6
Views: 2013

Re: Raspberry Pi stopped working - will not boot

To my knowledge, only software on the sd card is updated. There isn't much you can do besides the things you already tried. You can visually check the sd card slot to ensure all pins are making proper contact. You can check all the voltages on the board. If you are familiar with using a multimeter. ...
by obcd
Sat May 04, 2013 6:18 am
Forum: Troubleshooting
Topic: My project
Replies: 6
Views: 1054

Re: My project

To drive passive car speakers, you will need an amplifier as well. Maybe you have that but forgot to mention it. Software volume control on the analog out of the Pi reduces the bitdepth. Due to that, distortion will increase. You might test things out and connect your Pi to an amplifier to figure ou...
by obcd
Fri May 03, 2013 3:55 pm
Forum: Troubleshooting
Topic: YAUSBP (Yet Another USB Problem) using powered hub
Replies: 11
Views: 28951

Re: YAUSBP (Yet Another USB Problem) using powered hub

The usbcore schemes can make the difference if a device isn't enumerated properly. Since yours is enumerated when connected directly to the Pi, it should also enumerate when connected to a hub. It doesn't hurt to try it out, and it's very interesting information, but probably not the answer to your ...
by obcd
Fri May 03, 2013 3:46 pm
Forum: Nederlands
Topic: 100% CPU in Raspbian
Replies: 13
Views: 2940

Re: 100% CPU in Raspbian

Precies daarom kun je de meeste soc's boot device configureren. Als de on board flash chip corrupt is kun je door middel van een io aangeven dat hij moet booten van sd of usb. Je kunt dan de on board flash contents terug in orde brengen en vervolgens terug booten van daar. Ik begrijp ook wel dat de ...
by obcd
Fri May 03, 2013 3:37 pm
Forum: Troubleshooting
Topic: Absolute max/min supply voltage?
Replies: 15
Views: 15116

Re: Absolute max/min supply voltage?

I use 4.85V as the lower treshold. The reason is I had 3 identical adapters. One of them it's voltage was a little lower than the others. (Still had 4.81 on TP1 - TP2). I used a hdmi 2 dvi adapter and had the Pi connected to a pc monitor like that. The supply with the lower voltage showed strange in...
by obcd
Tue Apr 30, 2013 2:51 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196730

Re: USB redux

Thanks for explaining that Gordon.
Didn't M33P made a Patch as well that improved the reliability of some older ftdi devices?
Before the Patch, they sometimes made the Kernel hang when you tried to access the device.
Reducing the speed to usb 1.1 also fixed it before his patch.

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