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by DeeJay
Sat May 17, 2014 6:29 am
Forum: Beginners
Topic: Which OS to use and other questions
Replies: 1
Views: 447

Re: Which OS to use and other questions

If you've worked with unix and solaris, the linux-based OSes for the RPi will seem pretty familiar.

Perhaps see my guide to choosing an OS here - http://www.raspberrypi.org/forums/viewt ... 97#p537024
by DeeJay
Sat May 17, 2014 6:08 am
Forum: Beginners
Topic: Minecraft
Replies: 2
Views: 656

Re: Minecraft

by DeeJay
Wed May 14, 2014 8:47 am
Forum: Beginners
Topic: iBeacons
Replies: 3
Views: 972

Re: iBeacons

Maybe it just *isn't* straightforward... You can use your Raspberry Pi to scan for iBeacons. We've put together a script below that does this The link to the script is http://developer.radiusnetworks.com/ibeacon/idk/ibeacon_scan That looks as though they have made it as simple as they possibly can. ...
by DeeJay
Tue May 13, 2014 7:49 pm
Forum: Beginners
Topic: iBeacons
Replies: 3
Views: 972

Re: iBeacons

There is an answer to your question here - http://stackoverflow.com/questions/2173 ... t-ibeacons (But presumably you will have googled for that already... ]
by DeeJay
Tue May 13, 2014 7:40 pm
Forum: Troubleshooting
Topic: SOLVED - NOOBS SD card Works – no boot with others
Replies: 8
Views: 1382

Re: NOOBS SD card Works – no boot with others

You know that you have a working power supply and monitor connection from your experience with the pre-installed NOOBS card: the only thing that can be wrong is the way you are creating the SD card. Taking small steps first. Even if it isn't what you eventually want to use, I suggest working with th...
by DeeJay
Tue May 13, 2014 5:42 am
Forum: Beginners
Topic: loading images into Raspian
Replies: 1
Views: 309

Re: loading images into Raspian

The website and installation procedure for ScreenlyOSE are here - http://www.screenlyapp.com/ose.html

Perhaps you could spell out at what stage of those instructions you run into problems, and what error message you get, if any?
by DeeJay
Mon May 12, 2014 5:45 pm
Forum: Beginners
Topic: Installing multiple OSes on NOOBS
Replies: 4
Views: 657

Re: Installing multiple OSes on NOOBS

Simple: you cannot do this. The NOOBS documentation is explicit that chosen OS's overwrite the previous content of the SD card.
by DeeJay
Mon May 12, 2014 4:56 pm
Forum: Troubleshooting
Topic: HELP - @ instead of "
Replies: 15
Views: 1685

Re: HELP please HELP

HELP is what the forums are here to provide - a Subject: line that encapsulates your problem would be of more use. Agreeing with the previous replies, but in detail - From a shell prompt (either a 'text-mode' login, a remote ssh session, or via an LXTerminal session from the gui) run - sudo raspi-co...
by DeeJay
Mon May 12, 2014 9:16 am
Forum: General discussion
Topic: How to make complex ui in python for my raspberry pi project
Replies: 13
Views: 3693

Re: How to make complex ui in python for my raspberry pi pro

there is still the problem on how to make the map... ;) One possibility - http://www.foxtrotgps.org/ It can be installed on Raspbian with a simple sudo apt-get install foxtrotgps It is gpsd compatible. It is Open Source, so if it isn't what you need you could learn from how it has been implemented....
by DeeJay
Mon May 12, 2014 8:57 am
Forum: Beginners
Topic: Program to save ip address in text file in sd
Replies: 9
Views: 2666

Re: Program to save ip address in text file in sd

try less /etc/rc.local to see how the IP address is printed out each time you reboot Raspbian. (It's not what you asked, but it is possible that your campus network administrators may have acceptable use policies - and firewalls to enforce them - that may prevent you from connecting a server to thei...
by DeeJay
Mon May 12, 2014 6:33 am
Forum: Beginners
Topic: Installing Minecraft Pi
Replies: 1
Views: 554

Re: Installing Minecraft Pi

Short answer: ./minecraft-pi Longer answer: Possibly you are following the instructions on the Minecraft Pi Edition 'landing page' at http://pi.minecraft.net/ or http://pi.minecraft.net/?p=68 ? Sadly, there is an error on that page, as you have discovered. They do publish the correct version here - ...
by DeeJay
Sun May 11, 2014 6:22 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Printing to a serial line (Through a USB port)
Replies: 11
Views: 10271

Re: Printing to a serial line (Through a USB port)

Have you looked at the manual for your printer? Google for TM-T20 Technical Reference Guide. My reading of that document is that the USB interface implements a 'bulk transfer' protocol. This seems to be different from the protocol used by the rs232 serial interface. This confirms the hunch I had a w...
by DeeJay
Sun May 11, 2014 6:09 pm
Forum: Beginners
Topic: Problem with GPIO
Replies: 45
Views: 3665

Re: Problem with GPIO

In the picture the top left was 3v3 the top [r]ight was 5v On most adaptors I have seen I would expect both 3v3 and 5v to be adjacent at either the right or left. Can you provide a link to the model of breadboard breakout adaptor you are using, please - maybe this adaptor is presenting the pins fro...
by DeeJay
Sun May 11, 2014 5:42 pm
Forum: Beginners
Topic: Problem with GPIO
Replies: 45
Views: 3665

Re: Problem with GPIO

Looking at your 6.25pm image (in my timezone) it seems you are trying to program this LED by connecting it to Pin18/GPIO#24. Get back to basics and make sure you can light up the LED by connecting it and its limiting resistor(s) between the fixed 3.3v supply on Pin1 and a Ground pin - that has to wo...
by DeeJay
Sun May 11, 2014 5:10 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Printing to a serial line (Through a USB port)
Replies: 11
Views: 10271

Re: Printing to a serial line (Through a USB port)

My thinking now is that the device [ 1246.520187] usblp 1-1.3:1.0: usblp0: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0E03 [ 1246.521998] usbcore: registered new interface driver usblp is not a 'serial port device' as expected by the Ruby serialport gem. (I think you had com...
by DeeJay
Sun May 11, 2014 5:03 pm
Forum: Beginners
Topic: Problem with GPIO
Replies: 45
Views: 3665

Re: Problem with GPIO

Now you know what the likely problem was, I suggest you get back to testing from the fixed 3.3v on Pin 1 because that is what you will get from the programmable pins once you progress beyond this...
by DeeJay
Sun May 11, 2014 4:44 pm
Forum: Python
Topic: Using Pins 3,5 for I2C and as GPIO in one script
Replies: 8
Views: 2476

Re: Using Pins 3,5 for I2C and as GPIO in one script

Is there some practical restriction that means you have to use the same pair of GPIO pins for two incompatible functions in the same script? Can you not use Pins 3 and 5 for the I2C connection and implement your own device handler on some other pins?
by DeeJay
Sun May 11, 2014 4:40 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Printing to a serial line (Through a USB port)
Replies: 11
Views: 10271

Re: Printing to a serial line (Through a USB port)

If your reported output from dmesg is accurate, the device created when you plug it in seems to be named usblp0

Is it worth trying /dev/usblp0 as the name of the device in your tests, in place of /dev/usb/lp0?
by DeeJay
Sun May 11, 2014 4:28 pm
Forum: Beginners
Topic: Problem with GPIO
Replies: 45
Views: 3665

Re: Problem with GPIO

What are the colour-codes on your 330ohm resistor?
by DeeJay
Sun May 11, 2014 4:07 pm
Forum: Gaming
Topic: Connect keyboard to RPI
Replies: 2
Views: 840

Re: Connect keyboard to RPI

I have trouble to connect my Deltaco TB-109I to my RPI What have you tried? Did you get any error messages when it failed? Is this a Bluetooth keyboard that comes with its own BT receiver to plug into a usb port? Have you been able to configure the RPi to work with the BT receiver, or is that what ...
by DeeJay
Sun May 11, 2014 12:15 pm
Forum: Staffroom, classroom and projects
Topic: How to teach a young girl using Raspberry Pi
Replies: 7
Views: 3687

Re: How to teach a young girl using Raspberry Pi

Your problem is perhaps not so different from that of any other teacher or parent. Some thoughts from a one-day workshop held in Cambridge, UK yesterday. To get and keep a young person's attention they have to find a Personally Meaningful Project. To do that using a RaspberryPi may involve introduci...
by DeeJay
Sun May 11, 2014 11:27 am
Forum: Python
Topic: What other programming language can i use with Raspberry Pi?
Replies: 22
Views: 3208

Re: What other programming language can i use with Raspberry

... but what the OP said was
Im a .net developer
by DeeJay
Sun May 11, 2014 11:25 am
Forum: Troubleshooting
Topic: Another problem with logging in via ttyUSB0
Replies: 10
Views: 2603

Re: Use RTS/CTS

uc3a wrote:Нow to use Raspberry Pi Serial Port four wires RXD/TXD and RTS/CTS ?
You will need a Ground wire as well.

If you want to connect to some other device with an rs232 serial interface you will need an external signal level convertor.

See http://elinux.org/RPi_Serial_Connection
by DeeJay
Sun May 11, 2014 7:29 am
Forum: Raspbian
Topic: rpi-update... overwritten?
Replies: 2
Views: 784

Re: rpi-update... overwritten?

Tarcas wrote:is there someplace that I should report this error so that it can be fixed and doesn't happen to others also?
Perhaps here - https://github.com/Hexxeh/rpi-update/issues
by DeeJay
Sun May 11, 2014 6:48 am
Forum: Raspbian
Topic: Why is a Command Requiring sudo not Asking for the Password?
Replies: 4
Views: 993

Re: Why is a Command Requiring sudo not Asking for the Passw

I suggest reading man sudo and man sudoers, and then noting that the final line of /etc/sudoers reads

Code: Select all

pi ALL=(ALL) NOPASSWD: ALL
It's your system. If you don't like it that way you are free to change it.

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