Category: Raspberry Pi

Links: A Raspberry Pi controlled mini CNC Laser engraver

by Admin
[notice]NEVER look into a laser that is capable of engraving materials – you could be instantly blinded!  If you actually have to be told that, then you probably shouldn’t be allowed to use anything remotely dangerous.  DO NOT attempt to build anything like this unless you are willing to take full personal responsibility for any damages.  We WILL NOT be liable if you stupidly choose to build something like this and manage to damage your eyesight, or any other part of your body! And if you do choose to attempt to build something such as this, we strongly recommend mounting it inside an opaque protective enclosure, so that children or animals cannot come into the direct or reflected path of the laser beam.[/notice]

This looks like a fun but potentially VERY dangerous project – we wish the sites linked below had included some common-sense safety warnings for potential builders.  Please be conscious of friends and family members (especially the young ones) that might not fully appreciate the danger.  If there are drunk people around, hide this thing, preferably under lock and key!

I recently made a mini CNC laser engraver using two DVD drives salvaged from old computers and <$10 extra parts bought on eBay. The controller of the CNC machine is a Raspberry Pi, a $35 credit card size computer. The engraver turns out to be pretty successful. So I am sharing it with everyone.

blogger-image-1422023181
Full article here:
A Raspberry Pi controlled mini CNC Laser engraver (fun of DIY)

Additional coverage:
Raspi Mini Laser Engraver (Hack A Day)
Raspberry Pi Laser Engraver Created Using Two Old DVD Drives (video) (Geeky Gadgets)
Home-made CNC laser engraver (Raspberry Pi – this article actually does include a warning!)

Unbricking a Router With a Raspberry Pi using JTAG (links)

by Admin

This is a tale of how someone remembered that he had a non-functional router, in this case an older Linksys WRT54G, and…

… decided he would have a go at repairing this ancient router. There was only one problem: the most popular utility for programming the router through the JTAG header required a PC parallel port.

Unfortunately, parallel ports are becoming as hard to find as floppy disk drives these days, but did that deter him? No way, he simply added Raspberry Pi support to the debricking utility, and used the Raspberry Pi’s GPIO pins to do the job.  Unfortunately, in the end he was unsuccessful, but only because he physically damaged the circuity on the router while attempting to upgrade the RAM – had he not attempted the hardware modification, this likely would have worked.  So, although we make no guarantees, if you have a bricked router, read the articles linked below and maybe you can bring it back to life.

Unbricking a Router With a Raspi (Hack A Day)
Debrick WRT54GL using Raspberry Pi (JTAG bit banging) (Oxblog)

Link: FM Stream: broadcasting local radio to the internet

by Admin

The Raspberry Pi is being used increasingly in professional products and industrial applications, and this one from Artica and partners is one of most impressive yet. I can’t better their own description of FM Stream as “a beautiful, low cost, carrier grade rack of FM tuners, IP/Internet encoders and broadcasters, using nothing but RaspberryPis, Arduinos, clever electronics, neat mechanics, a shiny aluminium case and lots of passion.”

FM Stream — shiny AND useful

Full article here:
FM Stream: broadcasting local radio to the internet (Raspberry Pi)

Link: DSVR (Domain-Specific VPN Router)

by Admin
[notice]This software may not be legal to use in some countries or localities, or for certain uses.  We are not lawyers, so we cannot advise you on this.[/notice]

From the README.md file:

PURPOSE

If you’re using a VPN service today, you may have found the following limitations:

1) All or nothing. Either ALL traffic goes down the VPN or none – unable to be selective.
2) Only one VPN at a time. Cannot selectively route certain sites down one VPN, and others down another VPN.
3) Unless you’ve configured your VPN at the router level, it’s likely that only a single device can use your VPN at one time.

This project serves to address each of the above – see the FEATURES section.

Please review my blog post here http://darranboyd.wordpress.com/2013/07/05/selective-vpn-routing-solution-dsvr/

Note that this software runs on a Raspberry Pi. Full text and download links:
DSVR (Domain-Specific VPN Router) (GitHub)

If for some reason you don’t want to run this on a Raspberry Pi, but would instead prefer to do something similar using a DD-WRT based router, the same author covered that topic a couple of years ago:
StrongVPN PPTP on DD-WRT – Source based routing (improved) (Darran Boyd)

Link: 4 AirPlay Receivers That Are Cheaper Than Apple TV

by Admin

Apple users looking at an integrated media solution simply can’t look past AirPlay. By incorporating AirPlay, you build a bridge between your media rig and any of your Apple devices. Show off holiday pictures from your iPhone on your TV, play Spotify audio from your computer on your surround system, or perhaps even mirror your desktop on the television screen. All of it wireless. With AirPlay, your media rig is extended with all of the juicy features and applications of iOS and Mac OS X

To enjoy the benefits of AirPlay, you’ll need an AirPlay receiver, and the Apple TV is by and far the most popular one. Built as a veritable entertainment box, the Apple TV isn’t cheap (it’s a bit under the 100 mark). It’s tempting to look for alternatives; AirPlay receivers that are cheaper than the Apple TV. We’ve laid out four options.

Full article here:
4 AirPlay Receivers That Are Cheaper Than Apple TV (MakeUseOf)

Link: How To Take Screenshots On The Raspberry Pi

by Admin

While putting together some future articles I wanted to take some screen shots within LXDE, the Pi’s default graphical interface.

I considered taking them on my PC using a remote desktop connection to the Pi but I thought it might be easier to just take them directly on the Pi as I used it.

Full article here:
How To Take Screenshots On The Raspberry Pi (Raspberry Pi Spy)

Link: Back up your Raspberry Pi to your Google drive

by Admin

Being able to back up data to the cloud is very useful. It means that even if your Raspberry Pi dies or your SD card gets corrupted, your data is still safe. It also means that you can access your data from any where in the world.

If you have a Google drive account, you can use the grive program to sync a folder on your Pi with your Google drive.

Full article here:
Back up your Pi to your Google drive (Raspberry Web Server)

Link: How To Take Screenshots On The Raspberry Pi

by Admin

While putting together some future articles I wanted to take some screen shots within LXDE, the Pi’s default graphical interface.

I considered taking them on my PC using a remote desktop connection to the Pi but I thought it might be easier to just take them directly on the Pi as I used it.

To do this I decided to use Scrot which is a command line screen capturing utility.

Full article here:
How To Take Screenshots On The Raspberry Pi (Raspberry Pi Spy)

Link: Raspberry Pi Configuration Manager `PiCon` Lets You Configure Your Pi Using A GUI

by Admin

PiCon is a Raspberry Pi configuration manager which lets you make changes to the config.txt file using a GUI. The config.txt file is used to store various system parameters that you would normally set from the BIOS, but Raspberry Pi doesn’t have a conventional BIOS and thus, it uses this file for such settings.

picon raspberry pi configuration manager

The application is designed to run on a host system (works on Windows, Linux and Mac since it’s written in Java) and not directly on the Raspberry Pi. It is possible to run the app on Raspberry Pi, but the performance is pretty bad.

Full article here:
Raspberry Pi Configuration Manager `PiCon` Lets You Configure Your Pi Using A GUI (WebUpd8)

Link: Using a Raspberry Pi as an AirPlay Receiver

by Admin

The Raspberry Pi is a versatile little computer that provides the perfect sandbox to start creating some fun and interesting projects. One popular project is as an AirPlay receiver, allowing us to stream audio from an iOS device or computer using iTunes to our Raspberry Pi that’s connected to a set of speakers.

In this tutorial, I’ll show you how to set up a Raspberry Pi to be used as an AirPlay receiver so you can stream audio from any iOS device, iTunes or compatible AirPlay software such as AirFoil.

Full article here:
Using a Raspberry Pi as an AirPlay Receiver (mac tuts+)

Recent Posts

Recent Comments

Archives

Categories

Meta

GiottoPress by Enrique Chavez