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Raspberry Pi

Remote Pi - Use Mobile Devices As Wireless KB/Trackpad For Raspberry Pi

Remote Pi is an application for iPhone, iPad, iPod touch and Google Android which allows users to utilize their mobile-devices as an wireless keyboard and trackpad for Raspberry Pi. Once installed user can send keystrokes and mouse events to you Raspberry Pi computers over TCP/IP via a wired or wireless network, the utility not only saves money for an additional keyboard-mouse but also keeps a USB port free on the Rapsberry Pi.

Remote Pi

Radxa Rock - The $99 Quad Core, 2 GB RAM Mini Computer With Android And Linux Support

Raspberry Pi - the hacker friendly, cheap mini-computer started a whole new niche of users tinkering with these easily accessible hardware and open-source software to create awesome projects. There are now a plethora of such ARM development boards from single-core, dual-core to quad-code varieties having all sorts of ARM CPU options like Rockchip, i.MX Freescale, Samsung Exynos etc. with various RAM, connectivity and falsh storage options.

Radxa Rock is the newest entry into this arena and seems to pack a solid punch of hardware and software power, powered by Quad core ARM Cortex-A9 processor the board manages to clock as high as 1.6Ghz and as low as 324Mhz, balancing between performance and power saving. The single-board computer uses RK3188 as the quad-core CPU and comes with 2GB DDR3 @ 800Mhz, 8GB Nand Flash, Micro-SD SDXC up to 128GB, Mali400-mp4@533Mhz GPU with OpenGL ES 2.0 support, video output via HDMI 1.4 up to 1080p@60hz, integrated Bluetooth 4.0, WiFi with external antenna, LAN, RTC, IR, USB OTG, S/PDIF, headphone jack, built-in microphone and 80 pins including GPIO, I2C, SPI, Line in, USB 2.0, PWM, ADC, LCD, etc. allowing users to easily connect rock with breadboard or other sensor boards.

Radxa Rock

How To Mount DD Disk Images With Read/Write Support On Windows

When it comes to perfect backup's, RAW disk-images are the choice for safest form of backup and restoration of fully functional operating-system installations. We have shared two methods of using the same to backup Raspberry Pi SD Card from Windows as well as Hot Backup's from RPi itself using Linux DD disk imaging utility. Once created we can also Mount these backup images with full read-write access for various tasks like Data recovery (For example imaging an corrupted disk and accessing the disk-image from another working computer to recover data).

OSFMount is a free Windows utility which allows you to do that, the software enables users to mount local disk image files in Windows with a drive letter which can be accessed like any other partition. The images can be mounted in read-only mode as well as write-enabled mode, OSFMount also supports creation of RAM disks (See What are RAM Disks and How they can be used to make use of non-addressable wasted RAM on Windows) which offers a huge speed boost over using disk-based images.


Installing and configuring Siriproxy on Raspberry Pi

Combine the awesomeness of Apple's Siri voice recognition capability with ability to tap into it using SiriProxy, and our favorite hacker friendly mini Linux computer Raspberry Pi and we have an excellent voice controlled home automation system which runs 24/7 waiting for voice commands to do assigned tasks. To get this super-geeky project working we need to install and configure SiriProxy on our Raspberry Pi setup, follow the instructions shared below to install SiriProxy on the official Raspbian “wheezy” distribution.

SiriProxy Demonstration

Easiest Method To Install Webserver On Raspberry Pi With PHP Support

The wonderful, multi-utility, mini-computer Raspberry Pi can also be used as an web-server. While you can't expect it to handle massive traffic, it can easily handle decent amount of static web-page traffic and can also be used as an web or mobile front-end for controlling RPi connected devices, services and GPIO for home automation. We have quite a few choices of web-servers to install on Debian, amongst the contenders we have apache, nginx, lighthttpd, Monkey web-server and quite a few others suitable on limited resources of Raspberry Pi. We will be installing the light, fast and well-supported nginx webserver with PHP support on Raspberry Pi as it behaves well with the mini-computer and takes only 5 minutes to get installed and working using the tutorial shared below.

nginx server on Raspberry Pi

How To Take Hot Backup Of Raspberry Pi Without Removing The SD Card

Since we are supposed to do a lot of tweaking and tinkering with our Raspberry Pi installations, it is always a good idea to backup the working SD card image before venturing for any experimentation. One way to do this is to take the whole SD card out and use another Windows/Mac computer to backup and restore the full sd-card image as demonstrated earlier. To save you with this much hassle, here we are with another method to perform automated "hot backups" from a Raspberry Pi itself to an external USB disk drive or remote storage. Simply use the provided Shell script and enjoy fast, efficient and automated RPi backups.

Automated Raspberry Pi Backup Script

Easy To Understand Raspberry Pi GPIO Pin Layout Diagram

One of the major strength and a reason for Raspberry Pi success has been the General Purpose Input/Output (GPIO) access offered by the mini computer, these programmable in/out pins allows a great of hackability letting users expand the system and get it interacting with other hardware devices. The GPIO pin's are confusing as they are not numbered serially, here are two nice RasPi GPIO pinout layouts for making things easier to understand.

Raspberry Pi GPIO Pin Layout (Revision 1 Board)
RPi GPIO Pin Access

Raspberry Pi Recovery System (New Out Of Box Software - NOOBS) is here to help you get started...

Making life easier for Raspberry Pi users, the core team has announced a new, feature packed "Raspberry Pi Recovery System" aptly named New Out Of Box Software (NOOBS). The utility allows users to select and install operating systems for the Raspberry Pi on an SD card without technical details like partitioning or card imaging.

The Recovery system creates a FAT partition on user supplied SD card with highly-compressed versions of various supported OS images like Raspbian, RaspBMC, Pidora, OpenELEC, ArchLinux and RiscOS. Just like recovery apps for Mac OS X the RasPi recovery allows users to press SHIFT while booting to launch it and use features like ability to easily reinstall the existing OS, install a different one, launch web-browser for online support or edit config.txt file using a handy editor for troubleshooting.

NOOBS main windows

Better Performing Wayland Windowing Software Bypasses XServer Completely On Raspberry Pi For Smoother User Interface

Many Linux distributions including the official Debian based Rasbian distro for Raspberry Pi makes uses of X11 or XServer windowing software to render the user interface, the problem is X11 is not optimized to use the graphics core of RasPi efficiently resulting in degraded lagged window composition. The Raspberry Pi core team has now decided to bypass X11 completely and move over to the open-source Wayland composition protocol.

The overall results are really exciting, while still in development the team prepared a video demonstration comparing the two and results are really promising. The video comparison and links to details including how to install the technology preview on Raspbian are shared below (click Read more).

Wayland Windowing Software

Pidora - Fedora Remix Optimized For Raspberry Pi Now Available For Download

While users can easily install and use multiple operating-systems on Raspberry Pi using BerryBoot, the beauty of an removable media card as operating-system loader is the simple plug-n-boot ease of use. The official Debian Linux port is the most widely used and supported distribution for Raspberry Pi, but specialized OS like RasPlex, Xbian and Raspbmc are also available for download with more and more Linux distributions getting ported for the platform by the developer community. Adding another excellent addition to the ever growing list of dedicated, RPi optimized builds of various Linux distributions; Fedora joined the club with release of Pidora - a Fedora Remix optimized build for the Raspberry Pi computer.

Pidora is an RPi optimized build of Fedora (Fedora Remix) featuring software packages from the Fedora Project compiled specifically for the ARMv6 architecture for use on the Raspberry Pi. Unique features of this build are Graphical firstboot configuration (with additional modules specifically made for the Raspberry Pi), Compact initial image size with auto-resize for maximum storage afterwards, unique feature allowing IP address information readable over speakers and flashed with the LED light for true headless mode on setups lacking a monitor or display, easy package management using Yum, included support for programming languages (like C, Python, & Perl) and libraries capable of supporting external hardware such as motors and robotics (via GPIO, I2C, SPI) out-of-the-box.

pidora Fedora Remix Installer For ARM


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