Read & Write Speed Resources http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=6180
All posts by
.Raspbian General
This is a special version of Debian Wheezy which takes advantage of the floating point features of the Raspbery Pi CPU giving a significant speed boost (the standard Debian for ARM doesn't). Default Setup Username: pi Password: raspberry Running The GUI Enter the command: startx If you need to control the IO pins or modify […]
Model B Power
microUSB Power Input Has a 1.1 A polyfuse (700mA "hold current"). RPi Power Consumption Varies depending on how busy it is and what peripherals are connected. Running a GUI and running the GPU will take extra power. The USB devices and Ethernet connection will take power. General usage Reported current requirements of between 300mA and […]
Model B Hardware General Specifications
Memory 512MB RAM Connections 2 USB ports Ethernet port 3.5mm jack for audio out HDMI Composite Video Processor SoC is a Broadcom BCM2835 This contains an ARM1176JZFS (ARM11 using an ARMv6-architecture core) with floating point, running at 700Mhz, and a Videocore 4 GPU. GPU The first version of the GPU used came out in […]
Model B CAD & Mounting Info
The Raspberry Pi PCB measures 85mm x 56.2mm excluding overhanging connectors and is 20.8mm high. PCB Gerbers http://www.raspberrypi.org/archives/344 No actual gerber files have been released the last time we looked (07/2012). Official CAD There is no official drawing the last time we looked (07/2012). Our CAD This is our 2D drawing of the Raspberry Pi. […]
IO Pin Control – General
Permissions Any program that accesses the GPIO pins must be run as root, so if you get an error, remember to “sudo” your command or run your application as root. To avoid this the GPIO pins can be exported and have their ownership changed appropriately [Resource on this wanted].
QT General
Qt on Raspberry Pi qt-project.org/wiki/Qt-RaspberryPi QT Developer Network qt-project.org QT Commercial www.digia.com/en/Qt/
Licencing costs
QT is available with open source licencing. For a guide to commercial licensing see http://qt-project.org/forums/viewthread/9762
Other Boards Like the RPi
Other Boards apc Beagleboard Intel Galileo x86 Development Board LeopardBoard Pandaboard RIoTboard
SD Cards
The minimum size SD card you can use for Rasbian is 2GB, but it is recommended to get a 4GB SD card or above. Card Speed A Class 4 card, which is the minimum recommended has an average read/write speed of 4 MB/sec. If you spend a little extra and buy a Class 10 card, […]