Turnigy 1:16 Nitro RC Cars

I recently bought 2 Turnigy Nitro RC cars to have a little fun with, whilst being fully aware of them having a problem with the starter mechanism I hoped that HobbyKing would have resolved them by now, but unfortunately not.

I bought a Truggy for £50 and a Buggy for £70 and managed to start them both twice before the pull starter began to slip. I took the buggy engine apart and found no obvious problems, but there was a lot of oily residue covering pretty much everything, even the pull starters chord and this seemed to be the reason it was slipping.

Searching online at the HobbyKing website I  found various posts about replacing different engine parts but the most promising said that a Graupner 92600.117A back plate was the ultimate solution and stops the oily residue from the fuel seeping everywhere.

All in all it looks like a design flaw with the engine, but two new back plates are on their way from Germany, £30 inc postage and should be here in a few weeks.

Turnigy Buggy & Truggy

Update 16/08/2015 –

The new back plates fits nicely and the engines have both turned over flawlessly since. The pictures below show briefly how it was done to the buggy engine, the same steps were repeated for the truggy engine too.

A video will be attached soon showing the cars in action.

Virtualmin GPL on CentOS 5.8

Update: 08/03/2017: The following guide was originally written many moons ago for installing the Virtualmin GPL (free) control panel on CentOS 5.8 x86, however it will work exactly the same on the current version of CentOS (7.0).

The following guide will assume you are logged into your CentOS machine via command line, ready to enter the following commands.

First you will want select a temporary directory to Virtualmin installation file to. We will only use the downloaded file once so it’s pointless keeping it, so to free up space and put it in /tmp!

cd /tmp

Download the Virtualmin GPL installer:

wget http://software.virtualmin.com/gpl/scripts/install.sh

Run the installer:

sh install.sh

The installer will then launch and prompt you to approve if you’d like to proceed. Simply type “y” and press enter and the installation process will begin.

After a short while you will see a message saying the installation has been completed. You will then be able to login to installation of Virtualmin by heading to https://hostname-or-ipaddress:10000 using the root username and password.

Once logged in you will then be guided through a final configuration process, once completed the installation will be complete and ready for use. Another guide will be written soon to explain how to configure Virtualmin.

Notes

  • You can download the original .sh file used in the example above by clicking here
  • If you don’t already have a server to try this on check out Linode, they offer reliable good spec servers starting from $5 a month
  • Depending on your CentOS installation you may get an error message about the Perl package being missing. To resolve this run the following command in terminal and then relaunch the installer:
    • yum install perl -y

Bypass Queue-it.com’s Online Queuing Service

For Black Friday 2014 Currys enlisted the Queue-it.com online queuing service to presumably create some form of buzz and make impatient paying customers even more eager to see what amazing deals they had – there really weren’t that many.

A few people at work were trying to get onto their website but found themselves not getting very far being constantly pushed to the back of the queue. As a joke I was asked to get around the queue and within two minutes I was on the Currys website.

I tried reverse proxying and modifying my browser user agent string but still found I was being redirected, meaning something in the websites source code was redirecting me. After a quick look through the source I notice some Javascript coming from the Queue-it.com domain. I disabled Javascript and was browsing instantly!

So, disable Javascript and skip that queue!

Notes

  • If you are regularly faced with Queue-it.com’s incredibly useful service consider installing browser plugin such as AdBlock or NoScript to block the entire queue-it.com domain and resume happy browsing

 

Upgrade Windows Phone 8.0 to 8.1 Before Main Release Using Developer Preview

Recently I lost my smartphone and after lots of searching decided to give up and buy a new phone. As I only really use my phone for checking emails, a little remote desktop access and the odd bit of mobile banking I didn’t need anything overkill and I fancied a change from Android so I went for a Windows based Nokia Lumia 520.

The Lumia 520 can be picked up for £69.00 on O2 pay as you go (as of 01/07/2014, see here) but I paid a little extra and got mine the same day. I was initially blown away by the Windows Phone operating system as it was better than expected and I couldn’t find any flaws. I’d setup my email, installed the mobile banking app and so on which lead me to my final task which was to install the Remote Desktop app. You’d think this would be a straight forward task installing a Microsoft product on something Microsoft powered but no, when heading to the Microsoft Store on the phone the Remote Desktop app wasn’t showing so I searched the Microsoft Store online and it came up saying that it wasn’t compatible with the Windows Phone 8.0 operating system that was currently on the phone.

I had three options, to cry in the corner, wait for the update to be released or to try upgrade the phone manually. After a little research the update was said to be released within the “…first two weeks of July…” but there was no exact date and I just couldn’t wait.

After more research it turns out that you can use a free app called Preview for Developers which allows you to basically get the update there and then instead of having to wait.

Upgrading Windows Phone 8.0 to 8.1

Below you’ll find a guide on how to upgrade the Windows Phone operating system. Please note that any changes you do here are irreversible and this will no doubt void your warranty.

  • First things first we need to create a free account with Microsoft’s App Studio using the link found here as this will give you access to the developer previews service and give you the magical updates – I used my main Microsoft account that’s linked to the phone to keep things simple
  • Once you’ve created the account go to Microsoft Store on the phone, search Preview for Developers and install the app
  • Once the app has installed launch it and you will be asked to accept the terms and conditions and login using the account details created previously
  • Next you’ll see information about what the app does and so on, all we need to do here is tick the box next to Enable Preview for Developers and press done
  • Now that’s enabled head to Settings > phone update and press check now and then follow the on screen instructions – You may need to repeat this process several times as it took me two updates to prepare the phone before the update to Windows 8.1 was offered
  • After a little while you will now be running Windows 8.1! – You can check this by viewing Settings > about > more information under the OS version heading

Notes

  • Make sure your phone is fully charged before attempting any updates as things could seriously go wrong otherwise!
  • As with anything in development stages things may be a little buggy so be aware that you may stumble across the odd glitch every now and again
  • Although not tested I assume the same steps will work for phones other than the Nokia Lumia 520, if you can confirm this I’d be grateful

Enable SSH on LinkStation Stock Firmware

Enabling SSH on the LinkStation is simpler than you might think and opens up a world of functionality (and nerdyness) that you never had before – All this with no firmware flashing which ultimately means no data loss and no risk of bricking your box.

My motivation to enable SSH came about when my older LinkStation (a 500GB HS-DHGL) was doing a Disk Backup to my newer one (a 2TB LS-WXL) and it just seemed to be taking forever. It turned out the backup had hung part way through and the only official way to fix this problem as listed on Buffalo’s support website was to reset the box back to factory settings – That’s a bit ridiculous in my opinion but there is a work around, see this post here for more information on how to unstick a backup.

The activation process is done by a program called ACP Commander which is a command line tool that can be a little confusing to work at times with its lack of user friendly interface (if you search for this online you’ll see what I mean) however by chance I came across a reworked version that has a decent interface and is fairly easy to use.

Enabling SSH

The following guide will assume that you are on the same network as your LinkStation and are able to access it freely as you normally would day-to-day,  also if you want to keep your warranty with Buffalo do not continue!

  • Download ACP Commander GUI for Windows (.EXE file) or Mac (.DMG file)
  • Run your newly downloaded file and you should see a screen similar to the one below:
    lsunlock-1
  • Select your LinkStation IP address from where it says Select LinkStation, then enter your password where it says Admin password and press Enable SSH
  • After a couple of seconds you will be shown a SSH enabled OK! message as seen below:
    lsunlock-2
  • The next step is to set your root password for SSH, click Set root PW, type in a password and then press OK and you will see another message like the one below:
    lsunlock-4
  • Now head to your favourite SSH software and connect to your box! If all is well you will see something similar to this:
    lsunlock-5
  • That’s all you need to do to enable SSH!

Notes

  • This method is proven to work on both Windows and Mac for the following models/firmware: LS-WXL/v1.68, HS-DHGL/v2.11, LS-QVL/v1.64
  • Common out of the box commands include: top – process viewer, vi – text editor, cp – copy files, mv – move files
  • Mine and my friends newer LinkStations had HTOP installed – Epic!
  • Enabling SSH will no doubt void your warranty with Buffalo but who needs that anyway?!
  • I didn’t create the program recommended and take no credit for it
  • Finally, if you could let me know if you encounter any problems or can confirm if this works for other models I’d be grateful
  • Thanks to Callum for confirming this works on the LS-QVL and Michael for confirming this works on the TS-X/R5 with version 1.66 firmware

Sunluxy H.624 DVR Factory Reset

I had previously purchased two Sunluxy DVR’s for various projects (see CoopCam.co.uk to find out more) and was impressed with how easy they were get up and running, it was literally a straight forward task of fitting a hard drive and then setting and forgetting… literally… setting the admin password and then forgetting it.

Not to worry though, the user manual will have some helpful tips on what to do? Wrong! Poor translation meant the manual ended up in the bin, never mind the Internet will be able to help surely… maybe not. After much research I thought my box was going to end up living with the user manual in the bin but then I turned to good old fashioned trial and error as a last resort.

Factory Resetting the DVR

So lets get to the juicy bit! For the steps below you will need to be near your Sunluxy DVR but before you continue please be aware that this process will not only reset the admin password, it will also remove any settings entered previously such as network configuration, recording preferences and so on. The hard drive and all existing data will be left untouched.

  • First things first switch off your DVR. In my case there was a power switch on the back that I flicked, so far so good!
  • The next step is to hold the Back button (the one that lets you flick back to the previous menus – labelled with a back arrow, sometimes also labelled ESC) whilst switching the DVR back on, the button can be seen circled in the image below:

sunluxy_password_reset

  • After a short delay you will see that all lights apart from the power light go out and hear a beep, this means the DVR has reset itself  and will automatically restart so release the Back button and you will see the DVR begin to boot as normal
  • Once everything has loaded you will then be able to login to your DVR using the default username of admin and leaving the password field blank

Notes

  • In this example we used a Sunluxy branded DVR, however this process (or something very similar) should work with most generic H.624 DVR’s as well
  • The steps above assume your monitor is connected via the VGA connection, as Chris suggested in the comments below, try using the BNC connection if you have trouble with menus not showing
  • Finally, if you could let me know if you run into any problems or if the process works on other brands or models I’d be grateful