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by funnel
Sun Apr 28, 2019 3:34 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I damaged the TX/RX pins. Is there a way to remap the serial port to another free GPIO port?
Replies: 6
Views: 512

Re: I damaged the TX/RX pins. Is there a way to remap the serial port to another free GPIO port?

I already ordered a new Pi Zero. I tried putting the UART1 on 14,15 and it doesn't work either. The ttyUSB also works but I need the usb port and Zero has only 1 usb port. Adding a usb hub and a usb ttl adapter would take too much space for what I need and a Zero for $5 is cheaper than buying a hub....
by funnel
Sun Apr 28, 2019 1:11 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I damaged the TX/RX pins. Is there a way to remap the serial port to another free GPIO port?
Replies: 6
Views: 512

I damaged the TX/RX pins. Is there a way to remap the serial port to another free GPIO port?

Somehow a current spike damaged the 14 and 15 pin on my Rpi Zero 1.3. Like the title says is there an easy way to remap the serial port to other free pins? I did some googling and theoretically it's possible to enable UART1 on pins 32,33 and 40,41 but the pins are only available on the compute modul...
by funnel
Thu Jun 21, 2012 8:59 pm
Forum: Beginners
Topic: Real-time webcam streaming tutorial
Replies: 19
Views: 112503

Re: Real-time webcam streaming tutorial

Mplayer should play it. How do you access the camera stream?

Try using the mplayer option "-vo fbdev" or "-vo fbdev2". Right now I can't remember which one worked for me.

for example

Code: Select all

mplayer http://cam_url -vo fbdev
by funnel
Mon Jun 18, 2012 8:17 am
Forum: General discussion
Topic: Mjpg-Streamer
Replies: 46
Views: 108928

Re: Mjpg-Streamer

I wrote something about this here http://www.raspberrypi.org/phpBB3/viewt ... ing#p92461

Good luck.
by funnel
Tue Jun 12, 2012 4:06 pm
Forum: Raspbian
Topic: Webcam - EyeToy
Replies: 2
Views: 9531

Re: Webcam - EyeToy

I have same issues on Debian. Sometimes it works flawlessly and sometime fails and I need to unplug it and replug it to work again. I dumped the raw data from /dev/video0 and looked at it from a hexeditor. The normal jpeg size should be 0x8000 but sometimes, around 25% of the time, the jpeg is corru...
by funnel
Mon Jun 11, 2012 9:57 am
Forum: Media centres
Topic: OpenELEC Testbuilds
Replies: 765
Views: 229704

Re: OpenELEC Testbuilds

Hi, Another short update (r11286): http://sources.openelec.tv/tmp/image/openelec-rpi/OpenELEC-RPi.arm-devel-20120610224710-r11286.tar.bz2 to update a older build without reinstalling: http://wiki.openelec.tv/index.php?title=Updating_OpenELEC#Manually_Updating_OpenELEC updated XBMC many thanks to 'g...
by funnel
Thu Jun 07, 2012 8:48 pm
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

@neilpercy

You can also edit it from a windows machine by manually typing in explorer RPi's ip \\x.x.x.x. It is in the Userdata folder. The guisettings.xml file is not readonly. If anything goes wrong just delete it and will be recreated with the default settings.
by funnel
Wed Jun 06, 2012 8:15 am
Forum: Graphics, sound and multimedia
Topic: How to get a webcam working?
Replies: 10
Views: 14567

Re: How to get a webcam working?

Update your Pi with the latest kernel https://github.com/Hexxeh/rpi-update. They added support for both of your webcams a few days ago. Do a search on the forum there are many threads about the rc car, webcam topic.
by funnel
Tue Jun 05, 2012 3:25 pm
Forum: Beginners
Topic: Real-time webcam streaming tutorial
Replies: 19
Views: 112503

Real-time webcam streaming tutorial

By researching over the internet I found a way to stream a live webcam mjpeg stream with minimal delay (<1s). It could be useful for anybody who wants to use it on a rc car or robot in first person view where high latencies are not an option. I'm using a PS2 Eyetoy but it'll will probably work on an...
by funnel
Mon Jun 04, 2012 3:15 pm
Forum: Media centres
Topic: OpenELEC Testbuilds
Replies: 765
Views: 229704

Re: OpenELEC Testbuilds

The new builds are great. The UI is a lot faster then before. Good work developers.
by funnel
Sun Jun 03, 2012 6:55 pm
Forum: Troubleshooting
Topic: Pi = busted, yay.
Replies: 34
Views: 5456

Re: Pi = busted, yay.

Happened to me today, but changing the power supply fixed it. Also works fine from a PC usb port without mouse an keyboard attached.
by funnel
Fri Jun 01, 2012 10:35 pm
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

So I had everything working fine until I switched to "Windowed" mode. Now I can't switch it back. Hitting either arrow (up or down) simply asks me if I want to keep the current resolution. Any ideas? In guisettings.xml the line you edited <screenmode>WINDOW</screenmode> change to <screenmode>DESKTO...
by funnel
Fri Jun 01, 2012 2:17 pm
Forum: Automation, sensing and robotics
Topic: Would like to control some motors, but where to start? Help
Replies: 21
Views: 9365

Re: Would like to control some motors, but where to start? H

My suggestion would be to use a standard hobby servo and modify it to rotate 360 degrees, then use arduino to generate the servo PWM signals to drive the motor. You would need another unmodified servo for steering. RaspberryPi would be useful to connect it to the programmed arduino with serial commu...
by funnel
Fri Jun 01, 2012 11:28 am
Forum: Advanced users
Topic: asm printf?
Replies: 40
Views: 6003

Re: asm printf?

In this free book "Programming From The Ground Up" you can find sample codes for x86 linux asm.

In short, everything you write to /dev/stdout will appear on the screen. From asm you open it as a file and write to it.
by funnel
Wed May 30, 2012 9:57 pm
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

You could try editing .xbmc/userdata/guisettings.xml Find this line and edit it to WINDOW <screenmode>WINDOW</screenmode> and a little lower try changing the resolution until it fits <window> <height>480</height> <width>720</width> </window> This worked when I played with it over HDMI. If you don't ...
by funnel
Wed May 30, 2012 3:33 pm
Forum: General discussion
Topic: XBMC-RBP Strange artwork behaviour
Replies: 5
Views: 1018

Re: XBMC-RBP Strange artwork behaviour

Openelec or Raspbmc?
I think it has to do with the "dirtyregions" in advancedsettings.xml which is enabled by default in the latest versions. It speeds up the UI by updating only some regions of the screen.
by funnel
Wed May 30, 2012 2:52 pm
Forum: Advanced users
Topic: MPEG-2 Decoding
Replies: 230
Views: 80491

Re: MPEG-2 Decoding

To play an mpeg2 and see the (unwatchable) video in xbmc you have to right click on the file and select Play using... DVDPlayer.
by funnel
Tue May 29, 2012 9:46 pm
Forum: Debian
Topic: Kernel headers
Replies: 3
Views: 2275

Re: Kernel headers

I've had no luck with anything so far. I found this post http://www.raspberrypi.org/phpBB3/viewt ... =28&t=5700 and I'll try to cross compile the entire kernel with additional drivers when I have time.
by funnel
Mon May 28, 2012 6:23 pm
Forum: Other
Topic: OpenELEC
Replies: 38
Views: 17368

Re: OpenELEC

It plays fine over samba shares.
by funnel
Mon May 28, 2012 9:43 am
Forum: Debian
Topic: Kernel headers
Replies: 3
Views: 2275

Kernel headers

I'd like to build a webcam driver with module-assistant but it seems apt-get can't download the linux-headers-3.1.9 required to compile it. Any ideas, workarounds, tips? Thanks.
by funnel
Thu May 24, 2012 9:30 am
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

You could try right clicking on the file you want to play and select Play using... DVDPlayer. Probably still will be slow and unwatchable unless you have a small resolution mpeg2.
by funnel
Wed May 23, 2012 8:36 am
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

I'm using 11039 and it's working ok. I was even able to set the overscan correctly finally. I needed to put hdmi_mode=4 in config.txt and do the video calibration and reboot 3-4 times until it was ok. I tried the same with an older version and didn't work. I also think this http://elinux.org/RPi_con...
by funnel
Tue May 22, 2012 12:38 pm
Forum: Media centres
Topic: OpenELEC meets Raspberry Pi - part 1 (XBMC)
Replies: 1232
Views: 365077

Re: OpenELEC meets Raspberry Pi - part 1 (XBMC)

Anybody knows how the get airplay working to send a video stream from ubuntu to openelec+xbmc? Any tips or tutorial?
by funnel
Tue May 22, 2012 9:33 am
Forum: Troubleshooting
Topic: DVB-T Woes
Replies: 41
Views: 13669

Re: DVB-T Woes

You can use http://www.box.com . You ca upload 5.0GB with the free account. I don't know what download limits they have.

EDIT: I see now they have a 25MB file size limit with the free account.
by funnel
Mon May 21, 2012 2:47 pm
Forum: Automation, sensing and robotics
Topic: RC via wifi - PC to RPi
Replies: 24
Views: 10237

Re: RC via wifi - PC to RPi

I have to correct you. The pulse width signal for controlling servos and ESC's is 1-2ms(not ns). Some faster digital servos have the center at 0.76ms to allow them to work at higher frequencies. Nice project. I was thinking the same thing to remotely control a camera mounted on a rc plane, helicopte...

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