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by rasusr
Sun Jul 20, 2014 5:00 pm
Forum: Troubleshooting
Topic: SD card capacity oddity
Replies: 8
Views: 1930

Re: SD card capacity oddity

drgeoff wrote:Two years on and this SD card size query still comes up at least once a week. :(
I didn't know this was a common problem. Maybe it comes up often because it happens often and it's not obvious what terms to search for.
by rasusr
Sun Jul 20, 2014 3:50 pm
Forum: Troubleshooting
Topic: SD card capacity oddity
Replies: 8
Views: 1930

SD card capacity oddity

Hello, I tried backing up my RPi SD card (a 8GB) as an image, using Win32DiskImager. The image file was very suspicious, only 128MB. So I thought...well, let's try restoring the image on a different SD card. I took out a 16GB SD card, and used SDformatter to format it, then used Win32DiskImager to w...
by rasusr
Sat Jul 19, 2014 5:08 am
Forum: Beginners
Topic: how to install a database - rrd4j, db4o?
Replies: 0
Views: 786

how to install a database - rrd4j, db4o?

Hi,
I haven't been able to find any instructions for installing either rrd4j or db4o on a raspberry pi. Is this something someone here has done, and can give some help?

For both databases, it looks like you have to compile it from source? Is there another way?
by rasusr
Mon May 19, 2014 4:05 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Interface w/ RFM69W wireless module via SPI?
Replies: 21
Views: 24290

Re: Interface w/ RFM69W wireless module via SPI?

This is intended for use on the server side - not the device side. Yes, plenty of examples of the RFM69 used with Arduinos. But on the server side, I'd like to use the RPi to receive the wireless transmissions and put this data on a webpage w/ data logging. I was hoping there is a library available ...
by rasusr
Wed Mar 12, 2014 8:54 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Interface w/ RFM69W wireless module via SPI?
Replies: 21
Views: 24290

Interface w/ RFM69W wireless module via SPI?

I'm looking around for a way to interface the Raspberry Pi with a RFM69W or RFM69HW 915MHz wireless module. This module uses the SPI interface. I haven't found any examples around.

Thanks for any input!
by rasusr
Mon Mar 10, 2014 3:48 pm
Forum: Automation, sensing and robotics
Topic: RPi and Arduinos for Home Automation and monitoring
Replies: 2
Views: 2006

RPi and Arduinos for Home Automation and monitoring

Hello, I've come across a couple of platforms that use Arduinos for field sensor nodes and RPi as the web applications server, where the Arduinos communicate with the RPi wirelessly using 433MHz modules or the nRF24L01's. A smartphone app or webbrowser can view the status of sensors and actuate swit...
by rasusr
Mon Mar 10, 2014 3:33 pm
Forum: Automation, sensing and robotics
Topic: Transmitter for 433.92MHz
Replies: 2
Views: 1007

Re: Transmitter for 433.92MHz

What library are you going to use? And what about the receiver end for these? I've seen these used a lot before the nRF24L01 became popular, but with Arduinos. The Arduinos have a library called the "virtualwire" library, which made these 433MHz modules really easy to use. Is there a similar library...
by rasusr
Mon Feb 03, 2014 3:27 pm
Forum: Media centres
Topic: XBMC on Pi - best place for media - USB drive or NAS?
Replies: 4
Views: 2396

XBMC on Pi - best place for media - USB drive or NAS?

Knowing that there are some hardware compromises with the Raspberry Pi having to share the ethernet and USB bandwidth, I was wondering where is the best place for video library? On a USB drive connected directly to the Rpi? Or on the NAS connected to the same network? By "best", I mean minimizing th...
by rasusr
Fri Dec 27, 2013 7:10 am
Forum: Automation, sensing and robotics
Topic: viewing webcam stream
Replies: 3
Views: 1532

Re: viewing webcam stream

Is there a program for Raspbian that will view mjpegs?
by rasusr
Sat Dec 21, 2013 7:16 am
Forum: Automation, sensing and robotics
Topic: viewing webcam stream
Replies: 3
Views: 1532

viewing webcam stream

Hi,
Is there a way to view a webcam stream on my TV with the RPi? On windows, firefox will view mjpeg streams. But the browsers on Raspbian can't handle mjpeg streams. Any programs from the repository that would do this?

I basically just need to point it to the IP:port address.

Thanks!
by rasusr
Thu Dec 12, 2013 4:52 am
Forum: Media centres
Topic: XBMC - how to enable mouse scroll wheel??
Replies: 33
Views: 21653

Re: XBMC - how to enable mouse scroll wheel??

Still no solution. Bump! Also looking for the mouse wheel to work.
by rasusr
Tue Dec 10, 2013 5:40 pm
Forum: Other
Topic: Installing RetroPi (EmulatorStation) alongside NOOBS
Replies: 5
Views: 9793

Installing RetroPi (EmulatorStation) alongside NOOBS

Hello, I'm fishing around for a way to install the Retro Pie image along side the NOOBS image. I really like the multiboot feature of NOOBS, but also like the way RetroPi image boots right into emulator station without having to use a keyboard. With NOOBS, I use XBMC a lot, and it's usually the last...
by rasusr
Tue Nov 26, 2013 2:57 am
Forum: Beginners
Topic: [solved] a 16GB SD card only shows up as a 1.2GB
Replies: 4
Views: 6729

Re: a 16GB SD card only shows up as a 1.2GB

Yup, reformatted using the format utility and that fixed it. Thanks.
by rasusr
Mon Nov 25, 2013 6:41 am
Forum: Beginners
Topic: Raspbmc plays everything - but doesn't need MPEG2 license?
Replies: 3
Views: 1213

Raspbmc plays everything - but doesn't need MPEG2 license?

Hello, I thought I would need to buy a license to play much of the video files I have, but I was surprised that it's been able to play all files so far, and pretty smoothly. I have a pretty big mix of files, but I admit I don't know much about codecs. Here's the mix I think I have: MKV's w/ DTS audi...
by rasusr
Mon Nov 25, 2013 6:35 am
Forum: Beginners
Topic: [solved] a 16GB SD card only shows up as a 1.2GB
Replies: 4
Views: 6729

[solved] a 16GB SD card only shows up as a 1.2GB

Hello, I'm a total newbie to Raspberry Pi. I followed the standard instructions to prepare a 16GB SD card: 1) used SDcard.org's formatting tool 2) extracted the NOOBS zip file and copied the contents onto the SD card. After playing with Raspbian and Raspbmc, I wanted to start over. To my surprise, t...
by rasusr
Tue Nov 19, 2013 10:58 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: GPIO to SainSmart 4-channel relay board, transistors needed?
Replies: 11
Views: 30420

Re: GPIO to SainSmart 4-channel relay board, transistors nee

Followup -
The circuit above that uses a buffer IC of NPN transistors, do you need to add some resistors to the input and ground, more like this link?

https://docs.google.com/file/d/0B5-HND9 ... edit?pli=1
by rasusr
Tue Nov 19, 2013 10:47 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: GPIO to SainSmart 4-channel relay board, transistors needed?
Replies: 11
Views: 30420

GPIO to SainSmart 4-channel relay board, transistors needed?

Hi, There are a lot of posts out there about how the Sainsmart 4 or 8 channel 5V relay should not be used directly from the Raspberry Pi. Many people use NPN transistors in between the relay module and the RPi. And there are also people who wire the RPi directly to the Sainsmart relay and saids it w...
by rasusr
Tue Oct 01, 2013 2:43 am
Forum: General discussion
Topic: no access to motion server
Replies: 47
Views: 102164

Re: no access to motion server

I've got 2 webcams on my Pi now. Easy enough to do, just configure motion.conf with all the general settings, uncomment thread1.conf and thread2.conf down the bottom and put the cam specific settings in thread1 and thread2.conf Lagz, I'm trying to do two webcams, but haven't gotten it to work so fa...
by rasusr
Mon Aug 12, 2013 4:43 am
Forum: Automation, sensing and robotics
Topic: raspberry pi audio baby monitor
Replies: 3
Views: 1700

Re: raspberry pi audio baby monitor

Apparently, the raspberry pi community has done this with a variety of different methods. A couple involving using the darkice program. I'll probably abandon trying use ArchLinuxArm then.
by rasusr
Mon Aug 12, 2013 4:32 am
Forum: Automation, sensing and robotics
Topic: raspberry pi audio baby monitor
Replies: 3
Views: 1700

raspberry pi audio baby monitor

I have a couple of USB webcams with pretty good mics. Has anyone tried using these USB webcams as audio baby monitors? For ArchLinux, the Motion program works pretty well for video streaming. But I haven't yet found a program on ArchLinux that runs audio streaming off of a USB webcam's microphone. I...
by rasusr
Mon Aug 12, 2013 4:28 am
Forum: General discussion
Topic: Video baby monitor software
Replies: 5
Views: 5293

Re: Video baby monitor software

Has anyone gotten the microphone on a USB webcam to work with the Raspberry Pi? I'd like to make an audio baby monitor (I don't need the video part), and just use a spare Android phone as the audio output. But the criteria would be similar to the OP's: the audio monitor should start by itself after ...
by rasusr
Thu Jul 04, 2013 4:01 am
Forum: Automation, sensing and robotics
Topic: "Motion" webcam program - ignore moving trees
Replies: 4
Views: 8423

"Motion" webcam program - ignore moving trees

I've been using "Motion" for linux as a security webcam. It's nice, but I do get a lot of false detection. They occur mostly in two forms (1) During day time, swaying plants and trees, and sun/cloudy conditions (2) During night time, dim lighting outdoor causes false detection For (1), I'm think the...

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