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by JizzaDaMan
Fri Aug 21, 2015 2:43 pm
Forum: Networking and servers
Topic: OpenVPN server; can't connect externally
Replies: 3
Views: 3113

Re: OpenVPN server; can't connect externally

***This post was in response to someone who suggested I use nmap to determine whether the port was open on the server and then on the router. Their post seems to have been removed now. I'll leave it as I hope it provides useful information; I still have no idea where to go from here.*** The output f...
by JizzaDaMan
Fri Aug 21, 2015 12:04 pm
Forum: Networking and servers
Topic: OpenVPN server; can't connect externally
Replies: 3
Views: 3113

Re: OpenVPN server; can't connect externally

Sorry, that's my typo, I got it right when changing the settings. I'll edit the original post to avoid confusion. If your network runs with a 3G/4G dongle I don't quite know what you mean by this. Do you mean am I trying to connect to the VPN using a dongle? If that's the case, then I'm not. I'm una...
by JizzaDaMan
Thu Aug 20, 2015 11:59 pm
Forum: Networking and servers
Topic: OpenVPN server; can't connect externally
Replies: 3
Views: 3113

OpenVPN server; can't connect externally

I'm trying to set my pi up as a VPN server. I've successfully got OpenVPN up and running and I can connect to it with my computer on the same LAN as the pi. (In the client.conf file, the 'remote' parameter is my pi's local IP address). Incidentally, I have set up a static IP address for my pi. Havin...
by JizzaDaMan
Fri Aug 29, 2014 12:45 pm
Forum: Beginners
Topic: [SOLVED] Are these resistor values OK?
Replies: 6
Views: 1046

Re: Are these resistor values OK?

Thanks for all your help/advice, I've already built the circuit with a few modifications: Removed the 5V regulator. 22k base resistors on led driver transistors (owing to the increase in voltage from 5V to 12V from removing the regulator - the shift register can only source/sink 1mA). 10k pull-up re...
by JizzaDaMan
Thu Aug 28, 2014 11:23 am
Forum: Beginners
Topic: Multiple Video Displays
Replies: 9
Views: 1871

Re: Multiple Video Displays

I recently did a project like this for a school play, where I had 4 pis, each wired up to an individual display. The display would then play a video or show an image, or display the webcam. All images and videos were stored on the individual pis. I used sockets to send a signal to the pi which would...
by JizzaDaMan
Thu Aug 28, 2014 10:46 am
Forum: Beginners
Topic: [SOLVED] Are these resistor values OK?
Replies: 6
Views: 1046

Re: Are these resistor values OK?

Thanks for the reply. I'm aware that I could do it without the register, but I'm hoping to expand into multiple dimensions and larger matrices. So I want to experiment with shift registers (In future I will probably use an LED driver to remove the need for all those transistors)
by JizzaDaMan
Thu Aug 28, 2014 10:04 am
Forum: Beginners
Topic: [SOLVED] Are these resistor values OK?
Replies: 6
Views: 1046

[SOLVED] Are these resistor values OK?

I've done this circuit diagram and I was hoping you could check a few resistor/capacitor values that I'm not sure about. If you could also explain how/why you choose any of these values as well I would be very grateful. [attachment=0]Circuit diagram_schem.jpg[/attachment] (Apologies about the size, ...
by JizzaDaMan
Sat May 24, 2014 11:29 pm
Forum: Troubleshooting
Topic: omxplayer won't quit - intermittent bug
Replies: 4
Views: 1773

Re: omxplayer won't quit - intermittent bug

Oh ok, well I'll try that at some point when I've got the time :) Thanks for the help :)
by JizzaDaMan
Sat May 24, 2014 1:40 pm
Forum: Troubleshooting
Topic: omxplayer won't quit - intermittent bug
Replies: 4
Views: 1773

Re: omxplayer won't quit - intermittent bug

I flashed all the operating systems and performed full system updates only yesterday, so I'm almost certain I'm fully updated.
by JizzaDaMan
Sat May 24, 2014 1:11 pm
Forum: Troubleshooting
Topic: omxplayer won't quit - intermittent bug
Replies: 4
Views: 1773

omxplayer won't quit - intermittent bug

This is going to take a bit of explaining, so please bear with me :) I have the ultimate aim of using raspberry pis to drive remotely controlled displays. In the end, they'll be able to display videos, pictures, or webcam feeds. For the 'remote control' element, I'm using sockets. I have a python sc...
by JizzaDaMan
Thu Apr 10, 2014 6:52 pm
Forum: C/C++
Topic: Editing OMXPlayer
Replies: 3
Views: 1975

Re: Editing OMXPlayer

I expect it does. I'm controlling it using sockets in python from another computer over a network. That means I need omxplayer to be able to receive input not from a keyboard, so I'm using pipes. I have a python script running on the pi which listens for the signal to run command line arguments. It ...
by JizzaDaMan
Wed Apr 09, 2014 8:05 pm
Forum: C/C++
Topic: Editing OMXPlayer
Replies: 3
Views: 1975

Editing OMXPlayer

There are two things I want to change about omxplayer: I want to stop it displaying a message on screen whenever you pause/play it. Also when you quit, it waits for input before you can enter further commands on the command line. I want it to continue back to the command line without waiting for inp...
by JizzaDaMan
Mon Apr 07, 2014 6:29 pm
Forum: Beginners
Topic: FIFO
Replies: 2
Views: 490

Re: FIFO

So how do you use one? And when is the information passed?
by JizzaDaMan
Mon Apr 07, 2014 6:15 pm
Forum: Beginners
Topic: FIFO
Replies: 2
Views: 490

FIFO

What is a FIFO?

I've been looking into how to control omxplayer via ssh where the standard key inputs don't work.

A method to manage it seems to be to use a FIFO, created using the mkfifo command but what is it? What's it used for?
by JizzaDaMan
Fri Mar 28, 2014 7:01 am
Forum: Beginners
Topic: Playing videos in python
Replies: 1
Views: 726

Playing videos in python

Basically I need a simple, easy to use library that will play full screen videos for me in python on the raspberry pi. All the functionality I need is: play pause stop I also need to be able open the film at its first frame as a still, and then be able to play from there after it receives input. It ...
by JizzaDaMan
Tue Mar 25, 2014 9:03 pm
Forum: Python
Topic: Turn screen on and off at will
Replies: 9
Views: 1780

Re: Turn screen on and off at will

Thanks for the responses. I'm talking about HDMI here. With regard to it going black rather than off, I in fact need it to go black, rather than off, because otherwise I'll get the 'NO SIGNAL' message, which is something I'm trying to avoid. I have tried a command something like tvservice -p or some...
by JizzaDaMan
Tue Mar 25, 2014 5:59 pm
Forum: Python
Topic: Turn screen on and off at will
Replies: 9
Views: 1780

Re: Turn screen on and off at will

Any suggestions?
by JizzaDaMan
Sun Mar 23, 2014 7:56 pm
Forum: Python
Topic: Turn screen on and off at will
Replies: 9
Views: 1780

Turn screen on and off at will

I want to use my pi to play videos when they are sent a signal over a network (The signal sending part is sorted).

So my first question is how can I play full screen videos using python?

I also need the screen to be blank when it's not playing a video, how can I achieve this?
by JizzaDaMan
Sun Mar 23, 2014 6:22 pm
Forum: Beginners
Topic: Send information directly over a network
Replies: 7
Views: 1254

Re: Send information directly over a network

Thanks, that is exactly the kind of network I wanted :) Just basic data transmission between devices, so that will work perfectly. Thank you for your help :)
by JizzaDaMan
Sat Mar 22, 2014 11:25 pm
Forum: Beginners
Topic: Send information directly over a network
Replies: 7
Views: 1254

Re: Send information directly over a network

Given your level of network knowledge, my suggestion is to not do raw socket programming. If all you want is for a script to be run on each Pi, there's already a framework for that through SSH. It allows you to run a command on another computer, just by passing it through the SSH program. I know yo...
by JizzaDaMan
Sat Mar 22, 2014 11:08 pm
Forum: Beginners
Topic: Send information directly over a network
Replies: 7
Views: 1254

Re: Send information directly over a network

Thanks for suggesting using sockets, after a bit of experimenting I can see that they are exactly the kind of thing I was looking for :) I will undoubtedly be back after having a go at the other issues :P
by JizzaDaMan
Sat Mar 22, 2014 8:13 pm
Forum: Beginners
Topic: Send information directly over a network
Replies: 7
Views: 1254

Send information directly over a network

Hi, I'm going to set up a local network which will include a server (a linux mint pc) and 3 or 4 raspberry pis. (You'll have to bear with me when it comes to networking, I am a complete noob and my understanding of the jargon extends to 'IP address'.) What I want to happen: I write and run a script ...
by JizzaDaMan
Tue Jan 07, 2014 4:12 pm
Forum: Automation, sensing and robotics
Topic: Using the PWM pin
Replies: 11
Views: 2166

Re: Using the PWM pin

Gpio 18 is the only accessible gpio which has a dedicated PWM function. wiringPi (as far as I'm aware) is the only library which uses that function. What are you trying to do? Thank you for your relevant answer :) speed control of a pc case fan. From what I've been trying with LEDs, I'm happy to us...
by JizzaDaMan
Tue Jan 07, 2014 9:54 am
Forum: Automation, sensing and robotics
Topic: Using the PWM pin
Replies: 11
Views: 2166

Re: Using the PWM pin

That page implies I can do that on any pin (I am aware that I can softare PWM), but isn't there a specific pin designed for PWM?
Will using the module used on that page exploit the advantages of using that specific pin? (providing, of course, that I set it to the correct pin)
And which pin is it!?
by JizzaDaMan
Mon Jan 06, 2014 8:31 pm
Forum: Automation, sensing and robotics
Topic: Using the PWM pin
Replies: 11
Views: 2166

Using the PWM pin

How do I use the PWM pin on my pi? I'm using RPi.GPIO

Is it just the same as the use of any other pin? In which case it would be really simple to write a function to do it given a mark:space ratio.

Also which pin number is it?

Thanks

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