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by mehstg
Wed May 13, 2015 7:27 pm
Forum: Other
Topic: piCore (Tiny Core) Serial /dev/ttyAMA0
Replies: 1
Views: 1079

piCore (Tiny Core) Serial /dev/ttyAMA0

Hi all I am out of ideas now, hoping one of you will be able to help me. I have a python script that uses /dev/ttyAMA0 (the built in serial on the GPIO). I am unable to use it however as the system reports it is already in use. I have removed the offending code from cmdline.txt on partition mmcblk01...
by mehstg
Fri May 02, 2014 10:02 am
Forum: Beginners
Topic: Powering multiple pi's
Replies: 2
Views: 446

Powering multiple pi's

Hi all Just a quick one. I am in the process of building out my AV rack under the stairs. I will also be mounting 3x Pi's on the rack, all performing different functions. I was wondering if anyone had a suggestion on a neat way to power them all at once. Preferably all from a single mains socket. I'...
by mehstg
Sat Apr 19, 2014 12:44 pm
Forum: Other projects
Topic: Logic Level Converter
Replies: 4
Views: 742

Re: Logic Level Converter

Excellent. I hadn't spotted that. Thanks for the info. Is there a better way of doing this though? This will be a permanent installation so I'd rather get this right.not sure whether a level shifter or a voltage divider circuit is best.
by mehstg
Sat Apr 19, 2014 2:14 am
Forum: Other projects
Topic: Logic Level Converter
Replies: 4
Views: 742

Logic Level Converter

Hi all Wondering if I could get a bit of advice from one of you guys with electronics knowledge. I am currently beginning work on a project that will see the Pi monitoring a set of digital inputs via GPIO. There will be 2x inputs to monitor. The inputs will sit at 13v during normal operation, droppi...
by mehstg
Sat Dec 21, 2013 3:42 pm
Forum: Media centres
Topic: piCorePlayer a dedicated microcore and squeezelite player
Replies: 214
Views: 99963

Re: piCoPlayer a dedicated microcore and squeezelite player

Cool. I'll give it a go.

Thanks

Paul
by mehstg
Thu Dec 19, 2013 9:04 pm
Forum: Media centres
Topic: piCorePlayer a dedicated microcore and squeezelite player
Replies: 214
Views: 99963

Re: piCoPlayer a dedicated microcore and squeezelite player

Sure: Change Squeezelite Settings 1) Change Player name (Current name is: -n piCorePlayer) 2) Change Output setting (Current setting is: -o sysdefault:CARD=ALSA) 3) Change ALSA setting (Current setting is: -a ::32:0) 4) Change MAC adress (Current adress is: ) 5) Change Max sample rate (Current setti...
by mehstg
Thu Dec 19, 2013 8:38 pm
Forum: Media centres
Topic: piCorePlayer a dedicated microcore and squeezelite player
Replies: 214
Views: 99963

Re: piCoPlayer a dedicated microcore and squeezelite player

Hi thanks for the rapid response :-)

Currently it is using out-of-the-box settings. I have tried it on both a Model B Rev1 and Rev2 pi.
by mehstg
Thu Dec 19, 2013 8:27 pm
Forum: Media centres
Topic: piCorePlayer a dedicated microcore and squeezelite player
Replies: 214
Views: 99963

Re: piCoPlayer a dedicated microcore and squeezelite player

Hi just wondering if anyone can help me debug

I am currently using picoreplayer with audio over HDMI. I am getting very scratchy/distorted audio. I had exactly the same issue when I manually installed squeezelite on Raspbian.

Raspbmc on the same pi had no issues.

Any ideas where to begin debugging?
by mehstg
Tue Dec 17, 2013 4:38 pm
Forum: Graphics, sound and multimedia
Topic: Good MPD GUI Client
Replies: 9
Views: 11785

Re: Good MPD GUI Client

Thanks. One thing I'd love to see in something like Raspyfi/RuneAudio is synchronised playback. I believe this is possible with MPD, but the ability to have multi zone playback would be excellent.
by mehstg
Tue Dec 17, 2013 11:43 am
Forum: Graphics, sound and multimedia
Topic: Good MPD GUI Client
Replies: 9
Views: 11785

Re: Good MPD GUI Client

Hi, thanks for the reply. I am currently using something very similar (RaspyFi) however I am looking for something that runs it's GUI locally on the PI with support for LIRC. My plan is to include a small LCD screen in my project to display the GUI
by mehstg
Tue Dec 17, 2013 7:32 am
Forum: Graphics, sound and multimedia
Topic: Good MPD GUI Client
Replies: 9
Views: 11785

Re: Good MPD GUI Client

Yes! - out of interest, would it be difficult to modify it to work with LIRC?
by mehstg
Mon Dec 16, 2013 3:18 pm
Forum: Graphics, sound and multimedia
Topic: Good MPD GUI Client
Replies: 9
Views: 11785

Good MPD GUI Client

Hi all Just thought i'd do a quick straw poll on here. Brainstorming ideas at the moment after seeing a friend's Squeezebox Touch (http://www.stereophile.com/images/archivesart/1010squeeze.1.jpg). I am considering emulating something similar using a Raspberry Pi. I already have a screen I could reus...
by mehstg
Thu Dec 12, 2013 8:29 am
Forum: HATs and other add-ons
Topic: OLED/VFD Display
Replies: 0
Views: 1493

OLED/VFD Display

Hi guys Just wondering if any of you were running a 20x4 Green/Blue OLED/VFD display in one of your projects.... I'm after a screen but struggling to find one that is Green/Blue and 20x4. I seem to be able to find either a 16x2 Green/Blue or a 20x4 yellow! I'm currently using a 20x4 LCD HD44780 comp...
by mehstg
Wed Sep 04, 2013 8:12 pm
Forum: Raspbian
Topic: Changing Window Manager on Raspbian
Replies: 8
Views: 48056

Re: Changing Window Manager on Raspbian

Sorry for the late reply, thanks for all your help. I found out what was stopping ratpoison from loading. Removing lxsession and adding 'exec ratpoison' to the .xinitrc file allowed ratpoison to start.

Thanks for all your help
by mehstg
Fri Aug 16, 2013 8:47 pm
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

Just thought i'd update this thread and let you all know the outcome. I was an idiot. Opened the case this evening to start metering out the test points and bits of SD card slot fell out. It turns out that the reason the Pi is not booting is because the SD card isn't making contact anymore. Will buy...
by mehstg
Thu Aug 15, 2013 12:46 pm
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

Damn that probably means its not the polyfuse then :(
by mehstg
Thu Aug 15, 2013 11:00 am
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

Thanks Mortimer

I'll get the multimeter out tonight and take a look.

Out of interest, if it is the polyfuse, am I right in thinking that it should still boot powering the pi via the GPIO as this is after the polyfuse. I tried that last night and had the same issue.

Paul
by mehstg
Thu Aug 15, 2013 7:37 am
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

I'm going to take the Pi out of the case tonight and make sure there is nothing fouling the SD slot. Other than that, I'm at a loss to explain the issue. The thing that makes me think it is bricked is that on all of my other Pi's, the ACT light flashes momentarily when the power is applied regardles...
by mehstg
Thu Aug 15, 2013 6:13 am
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

Yep. Screen positive is the power supply to the screen.

P
by mehstg
Wed Aug 14, 2013 10:49 pm
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Re: Fried Pi - Understanding why

Hi I'm not sure what you mean. The screen controller takes a +5v input. This is what I mean by screen positive. The screen controller has four terminals. +5v, 0v, tx and RX. I have tried powering it via the gpio to no avail :( To confirm, the red power LED lights up however the ACT LED is permanentl...
by mehstg
Wed Aug 14, 2013 9:29 pm
Forum: Troubleshooting
Topic: Fried Pi - Understanding why
Replies: 14
Views: 8020

Fried Pi - Understanding why

Soo. I'm guessing I have managed to fry my Raspberry Pi tonight. After a bit of tinkering trying to get it talking to an arduino based screen controller (http://liudr.wordpress.com/gadget/phi-panel/) I am now in a situation where the red power LED lights up, but nothing else happens. The ACT LED is ...
by mehstg
Wed Oct 17, 2012 2:28 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Backpack and HD44780 LCD Controller
Replies: 1
Views: 1584

I2C Backpack and HD44780 LCD Controller

Hi guys Just playing with an LCD display on the PI. Currently I have it connected up using standard GPIO pins (6pins) and it is working fine. However my current project requires more GPIO pins than the Pi has. I know serial buses such as I2C exist, however I am not that familiar with them. Would it ...
by mehstg
Thu Oct 04, 2012 7:10 am
Forum: Raspbian
Topic: Changing Window Manager on Raspbian
Replies: 8
Views: 48056

Re: Changing Window Manager on Raspbian

I'm not so sure. That was my initial thought, however I then proceeded to uninstall LXDE. I am now presented with the LightDM login box, it has only one option on it (Openbox). Is anyone able to point me in the right direction? I am basically looking to strip LXDE from raspbian. I am trying to get i...
by mehstg
Tue Oct 02, 2012 5:28 pm
Forum: Raspbian
Topic: Changing Window Manager on Raspbian
Replies: 8
Views: 48056

Changing Window Manager on Raspbian

Hi all Just a quick question, as I am struggling here and I can't seem to find much info searching through the forums. I am attempting to swap the default window manager from LXDE (Openbox) to Ratpoison, however I am obviously editing the wrong file, as when I reboot, it still opens LXDE. I have ins...

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