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by Morgawr
Sat Mar 09, 2013 1:46 pm
Forum: Raspbian
Topic: Installing raspbian over ssh
Replies: 2
Views: 1382

Installing raspbian over ssh

Hello, I have been running debian with armel on my raspberry pi for 1 year, since I got my raspi. I decided to upgrade my rpi server to raspbian so I have a lot of old settings and user data that I will be carrying over (no big deal). I want to do a headless install, only installing the bare minimum...
by Morgawr
Wed Oct 10, 2012 12:31 am
Forum: Other projects
Topic: Help setting up a small LCD screen to my raspberry pi
Replies: 6
Views: 11623

Re: Help setting up a small LCD screen to my raspberry pi

Follow the instructions at http://www.raspberrypi-spy.co.uk/2012/07/16x2-lcd-module-control-using-python/ and you'll not go far wrong. What ever you do, make absolutely sure that the r/w pin is tied to ground and never try to read from the LCD module. If you do, it is quite possible that the data l...
by Morgawr
Tue Oct 09, 2012 5:22 pm
Forum: Other projects
Topic: Help setting up a small LCD screen to my raspberry pi
Replies: 6
Views: 11623

Re: Help setting up a small LCD screen to my raspberry pi

MattHawkinsUK wrote:First thing is that Pin 1 on the GPIO is 3.3v not 5v.

The LCD backlight can be connected to 5V via a 330 ohm resistor.
I'm pretty sure the first pin in the top row of the GPIO is 5v.. it's the bottom one that is 3.3v... or am I wrong?

I'm following this http://elinux.org/Rpi_Low-level_peripherals
by Morgawr
Tue Oct 09, 2012 3:15 pm
Forum: Other projects
Topic: Help setting up a small LCD screen to my raspberry pi
Replies: 6
Views: 11623

Help setting up a small LCD screen to my raspberry pi

Hi guys, a few weeks ago I bought an LCD screen thinking to connect it to my raspberry pi as a small project for fun. Here are the schematics of such screen. Unfortunately, I'm not very good at designing circuits and all that stuff and I'm afraid to overvolt my board (I'm no EE, I'm a CS student) an...
by Morgawr
Wed Sep 19, 2012 10:17 pm
Forum: Debian
Topic: Activating the new drivers for debian (not raspbian!)
Replies: 0
Views: 552

Activating the new drivers for debian (not raspbian!)

Hey guys :) I've been running my raspberry pi for a while now, I have a very minimal debian image I built myself (customized all the programs and packages, built some custom scripts and got some stuff here and there from raspbian to make into my own) running on my raspberry pi. I read on the news po...
by Morgawr
Thu Jul 05, 2012 7:56 am
Forum: Other projects
Topic: Simple LED screen signaling
Replies: 9
Views: 2172

Re: Simple LED screen signaling

http://www.electronics-lab.com/projects/mcu/015/index.html These 8bit parallel screens are pretty much everywhere, look on sparkfun, adafruit etc. you'll probably find code examples, schematics etc. Arduino have some fairly mature libraries these days that can show you how to use the least amount o...
by Morgawr
Wed Jul 04, 2012 11:58 pm
Forum: Other projects
Topic: Simple LED screen signaling
Replies: 9
Views: 2172

Re: Simple LED screen signaling

It's doable, but I would have thought that not only will it be electrically complicated, it will be quite a challenge to write the code too. Wouldn't something like THIS be easier to work with: http://uk.farnell.com/productimages/farnell/standard/2063208-40.jpg Datasheets : HERE and HERE Would appe...
by Morgawr
Wed Jul 04, 2012 9:52 pm
Forum: Other projects
Topic: Simple LED screen signaling
Replies: 9
Views: 2172

Re: Simple LED screen signaling

For those that are interested, the UK RS page is [url=p://uk.rs-online.com/web/p/lcd-displays-alphanumeric/5326414/]HERE[/url]. Datasheet PDF is HERE http://img-europe.electrocomponents.com/largeimages/R5326414-99.jpg Thanks! :) waiting for answers now. Don't need to be very detailed, just a point ...
by Morgawr
Wed Jul 04, 2012 6:08 pm
Forum: Other projects
Topic: Simple LED screen signaling
Replies: 9
Views: 2172

Simple LED screen signaling

Hello everyone, I bought this small screen http://it.rs-online.com/web/p/products/532-6414/ (it's in italian but it's pretty clear) a few days ago and it's going to arrive tomorrow. My plan is to connect it to my raspberry pi and then send data from a program that parses common system utilities (lik...
by Morgawr
Sat Jun 30, 2012 8:33 pm
Forum: General discussion
Topic: Supporting an arduino via USB
Replies: 2
Views: 1210

Re: Supporting an arduino via USB

I have successfully powered an Arduino via USB from a RPi. There was no circuit connected to the Arduino at the time though. I just tested serial communication on USB and that works. By the way the 'arduino' Debian package supports the Uno in Wheezy but not Squeeze. Great info, thanks! :) I already...
by Morgawr
Sat Jun 30, 2012 7:57 pm
Forum: General discussion
Topic: Supporting an arduino via USB
Replies: 2
Views: 1210

Supporting an arduino via USB

Hello everyone. I have a question, I don't know if this is the right section so feel free to move it. Anyhow, I currently have both a pi and an arduino UNO. Is the pi enough to support powering the arduino through standard usb port using the standard power supply (5~V)? What would be a better soluti...
by Morgawr
Fri Jun 29, 2012 8:13 pm
Forum: Troubleshooting
Topic: Raspberry Pi hang and is unresponsive
Replies: 4
Views: 2255

Re: Raspberry Pi hang and is unresponsive

Okay, giving myself a bump with an update. I went out and bought a nice 8GB SD card, figured that the old SD+USB couple was too slow and prone to problems. With the new card everything works fine.... but not always. I updated kernels and firmware using rpi-update, however after a while (I spent 3 ho...
by Morgawr
Fri Jun 29, 2012 8:41 am
Forum: Troubleshooting
Topic: Raspberry Pi hang and is unresponsive
Replies: 4
Views: 2255

Re: Raspberry Pi hang and is unresponsive

I was looking for a pre-compiled raspberry kernel because the default one from the debian image doesn't work (it has some problems finding the usb flash drive), I remember someone posted a patched kernel specifically for this on these forums but I couldn't find it so I tried a few kernels and the fe...
by Morgawr
Fri Jun 29, 2012 8:28 am
Forum: Troubleshooting
Topic: Raspberry Pi hang and is unresponsive
Replies: 4
Views: 2255

Raspberry Pi hang and is unresponsive

Hello everyone. I'm currently running my raspberry pi headless, no screen, using ssh. It works fine for a while, but when I try doing something a bit more "intensive" (even a simple apt-get update/apt-get upgrade) it takes a looong time to complete and more often than not it would just hang and I'd ...
by Morgawr
Tue Jun 05, 2012 7:05 pm
Forum: Advanced users
Topic: Getting a simple arm distro to run on the raspi
Replies: 5
Views: 3198

Re: Getting a simple arm distro to run on the raspi

Yes, it has to be fat32, and it has to be the first partition on the SD card. It's where the embedded-in-GPU firmware looks for bootcode.bin http://raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6685 If you're wanting to use your own kernel, you might want to check out https://github.com/raspberrypi/l...
by Morgawr
Tue Jun 05, 2012 9:54 am
Forum: Advanced users
Topic: Getting a simple arm distro to run on the raspi
Replies: 5
Views: 3198

Re: Getting a simple arm distro to run on the raspi

If you take one of the standard distros then you can put the main system partition on the USB device and only have the files from the FAT32 partition on the SD card. You then need to edit the cmdline.txt file to say that the rootfs is on /dev/sda1. Then when you have finished booting the SD card is...
by Morgawr
Tue Jun 05, 2012 12:40 am
Forum: Advanced users
Topic: Getting a simple arm distro to run on the raspi
Replies: 5
Views: 3198

Getting a simple arm distro to run on the raspi

So... my raspi arrived in my mail this morning and I started playing with it a bit. I was a bit disappointed (and confused) by the lack of grub on arm... anyhow this is my problem: I built/setup my debian distro using qemu-system-arm using standard debian stable packages (nothing specific to the ras...

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