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by SANGER_A2
Wed Jul 17, 2019 8:09 am
Forum: Graphics, sound and multimedia
Topic: Complete Pi Camera Timelapse Python Script
Replies: 0
Views: 357

Complete Pi Camera Timelapse Python Script

I've attached a timelapse camera Python script for anyone who wants it. It uses the Pi camera module and it's been working great for a few weeks now even with me restarting the Pi at random. The Python script is run on startup using systemd (there are loads of guides on how to do this) and this mean...
by SANGER_A2
Tue Oct 10, 2017 2:10 pm
Forum: General discussion
Topic: Minecraft Pi Multiplayer
Replies: 30
Views: 13640

Re: Minecraft Pi Multiplayer

You need to connect them via a router that has a DHCP server and set them to use DHCP instead of static addresses. If you connect one pi directly to another it won't work. We could get one pi to talk to another in peer 2 peer mode using static ip addresses (ping and python sockets) but Minecraft wou...
by SANGER_A2
Sun Aug 27, 2017 10:35 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

Thanks for all your help guys. I used the GPIO to switch a 5v relay, that enabled a 5v supply to the 25A SSR and that is working brilliantly to switch on and off my NAS's. The great thing is, because I'm running fauxmo, I can use Alexa to do it or a button I connect to the Pi's GPIO or an app to run...
by SANGER_A2
Thu Aug 10, 2017 1:42 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

You may find you don't need a heat sink as you said standing load is only 105w about 0.5A suggested 25A one so that it will be way over rated to handle the inrush current for the few milliseconds at start up. for the price better over rated than under rated as you have already discovered. triggerin...
by SANGER_A2
Thu Aug 10, 2017 7:38 am
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

So its the start up current that's destroying your relays, the load is not purely resistive, but a mixture of capacitive, inductive reactance and resistance. I am not sure your suggested SSR would be suitable with a rating of only 2A. I would look at some thing like this http://www.ebay.co.uk/itm/S...
by SANGER_A2
Wed Aug 09, 2017 11:15 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

OK so you have proved the contact is welded shut then if the NAS's are still powered with the pi dis-connected. no need to test with a meter. one thing I did notice you said NAS's more than one ? so you have more than one power supply on this one contact. so you need to consider the total load, tha...
by SANGER_A2
Wed Aug 09, 2017 11:00 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

The first thing to do is prove the contacts are welded shut. Do as I said in my post or disconnect the relay completely and use a meter to see if the contact is welded shut. then you can consider your solution once you are sure of the problem. Sorry, I was just coming back to confirm that I've disc...
by SANGER_A2
Wed Aug 09, 2017 10:44 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

If the relay contacts are welding shut as we both seem to suspect the simple answer is to use a properly rated relay with mains rated contacts, octal relays are commonly used in industry for switch 240V AC and should be capable of handling even the start current for a nas psu. Better still why not ...
by SANGER_A2
Wed Aug 09, 2017 10:35 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

Re: HELP! 5V Relays work with 12v, but not 240v

The relays are welding shut. The problem is not steady-state load but the surge current at start up. The capacitors in the PSU in the NAS will present a very low impedance load to the supply when uncharged, and will take many times the rated steady state current. 60 or 70A is normal, for a very bri...
by SANGER_A2
Wed Aug 09, 2017 7:55 pm
Forum: Automation, sensing and robotics
Topic: HELP! 5V Relays work with 12v, but not 240v
Replies: 19
Views: 3656

HELP! 5V Relays work with 12v, but not 240v

For over a year now, I have been using one of these with my Pi (2B and now 3) to switch a 12 volt supply on and off to control some fans in a server cabinet I made when none of my Network Attached Storage devices are on. It worked perfectly, so I thought I'd set up a similar one to switch the actual...
by SANGER_A2
Fri May 05, 2017 9:44 pm
Forum: Beginners
Topic: [Tutorial] Show RPI's Temperature with a command.
Replies: 71
Views: 553504

Re: [Tutorial] Show RPI's Temperature with a command.

I combined this along with a couple of other scripts that other people have posted here to provide a constant output of CPU and GPU temperature temperature and CPU clock speed that updates every second. All you have to do it press ctrl+c on the keyboard to cancel it. Really useful to run in a separa...
by SANGER_A2
Mon May 23, 2016 1:06 pm
Forum: Media centres
Topic: RPI2: OSMC vs. OpenElec vs. Xbian
Replies: 4
Views: 24638

Re: RPI2: OSMC vs. OpenElec vs. Xbian

I too will put in a vote for OSMC. I had major crashes often with OpenElec playing videos on my RPi2 over my wired network and poor performance (no it wasn't a problem with my power supply). I tried both XBian and OSMC. Xbian wouldn't let me setup a static IP address on initial setup or later on so ...
by SANGER_A2
Sun Apr 24, 2016 7:43 am
Forum: Beginners
Topic: RPi3 as Webcam Stream Server
Replies: 3
Views: 2894

Re: RPi3 as Webcam Stream Server

I assume that like me, the OP is looking for a solution to streaming the audio from his webcam. A possible option is ffmpeg and ffserver. I've only just started playing around with this, but Video4Linux2 supports my USB webcam fine for video and alsa for the audio (I've got a Microsoft LifeCam-HD-30...
by SANGER_A2
Mon Jul 30, 2012 11:31 am
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

Awesome. Thanks. Gonna try some of those out in Windows to use in school too!
by SANGER_A2
Thu Jun 21, 2012 7:38 pm
Forum: General discussion
Topic: Rebooting PI?
Replies: 2
Views: 906

Re: Rebooting PI?

Use the terminal command sudo shutdown -r now You should not have to do this of course! One of the things about Linux is that it shouldn't need rebooting. You may have a hardware fault with you network controller/port. Or a dodgy ethernet cable. Or a software problem with whatever build of linux you...
by SANGER_A2
Fri Jun 01, 2012 12:31 pm
Forum: General discussion
Topic: Farnell's Delivery Means ... FYI
Replies: 20
Views: 3592

Re: Farnell's Delivery Means ... FYI

Not sure why the images are shown smaller than they are. If you view just the images they are actually readable! First . Second . If you 'right-click' on the images and then select "Open image in new tab" they are displayed larger! When you do receive your Pi, which will hopefully be today, I will ...
by SANGER_A2
Fri Jun 01, 2012 11:36 am
Forum: General discussion
Topic: Farnell's Delivery Means ... FYI
Replies: 20
Views: 3592

Re: Farnell's Delivery Means ... FYI

Not sure why the images are shown smaller than they are. If you view just the images they are actually readable! First. Second.
by SANGER_A2
Fri Jun 01, 2012 11:33 am
Forum: General discussion
Topic: Farnell's Delivery Means ... FYI
Replies: 20
Views: 3592

Re: Farnell's Delivery Means ... FYI

I'm in the same boat, rang them today after being told it was posted over a week ago. This is the most annoying thing about the whole sending via second-class post thing:- http://i217.photobucket.com/albums/cc79/SANGER_A2/Misc/r_pi_order2.png On the order there's no tracking number etc as there shou...
by SANGER_A2
Sat May 19, 2012 4:28 pm
Forum: Other projects
Topic: Soap box housing
Replies: 7
Views: 3015

Re: Soap box housing

Wow! That is my ideal case! Cheap and it fits brilliantly! Nice one.
by SANGER_A2
Wed May 16, 2012 2:12 pm
Forum: Other projects
Topic: Chameleon Suit
Replies: 2
Views: 958

Re: Chameleon Suit

Well I'm planning to use mine to control a flying carpet I've developed that runs from 4xAA batteries. Very hush hush at the moment though! :lol:
by SANGER_A2
Sun May 13, 2012 9:56 am
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

(Quick aside about OpenGL vs OpenGL ES) It's worth mentioning that the normal "Quake III" engine *doesn't* work on the Pi. Its graphics code was written for fixed pipeline OpenGL which was the older mechanism for working with it. The Pi supports OpenGL ES 2.0, and this doesn't include support for t...
by SANGER_A2
Sat May 12, 2012 7:26 am
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

<r>Ed Raket said: <br/> <br/> <br/> Sim city, Duke nukem? If this could/would only appear on the Pi.... Excuse me, i need to wet myself now ;P<br/> <br/> p.s.<br/> <br/> (i will need an other undy when RS tells me i can place my order...<E>;)</E><br/> <br/> <br/> Lol. I used to love playing those tw...
by SANGER_A2
Fri May 11, 2012 2:02 pm
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

<t>stevepdp said: <br/> <br/> <br/> EA mentioned at the Ubuntu Developer Summit a few days ago that they had released source code for the first Sim City and Sims titles.<br/> <br/> The Sim City source code was released under a different name, "Micropolis", with all references to "Sim City" apparentl...
by SANGER_A2
Fri May 11, 2012 11:46 am
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

ghans said:


Can I put this on the wiki ?
Looks brilliant , and should not be forgotten here.

ghans


Definitely. I considered doing it, but couldn't even find how to make a new page!
by SANGER_A2
Fri May 11, 2012 11:46 am
Forum: Gaming
Topic: List of open source games that can be ported to the R-Pi
Replies: 43
Views: 29318

Re: List of open source games that can be ported to the R-Pi

<t>JonB said: <br/> <br/> <br/> Suitable for schools? They look like violent FPS games to me.<br/> <br/> <br/> Lol. I should point out we have a permission letter we get the parents to sign before the students are allowed to attend the club after school! These games are nothing compared to the gore ...

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