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Allwinner H3, 40x40mm, 512MB DDR3 RAM, 2xUSB, 100Mbps Ethernet. The packaging was wet for some reason.
In the process of being unboxed: my Raspberry Pi ARM-based "nanocomputer". Despite the photos, videos and articles talking about a "credit card-sized" machine, I was still surprised by just how tiny the Raspberry Pi is - the board really is about the size of a bank card, and the "block" on the right-hand side (see note) is the two USB ports. Incredible.
Connecting an Arduino and Raspberry Pi to create a webpage with temperature and humidity measurements.
These are pics of the new Raspberry Pi case design I'm releasing. It's released under a Creative Commons attribution-share alike license, so feel free to download the designs and make your own!
Grab the design files here:
www.thingiverse.com/thing:25100
Grab a kit here:
builttospecstore.storenvy.com/collections/85796-enclosure...
Connecting an Arduino and Raspberry Pi to create a webpage with temperature and humidity measurements.
Please take a look at www.retrocomputers.eu for more info about my retro computers and Raspberry Pi collections.
Power button controls power to RaspberryPi. Shutdown script listens to command to gracefully shutdown without need to login or issue a "sudo halt".
More at: lowpowerlab.com/atxraspi
Youtube: www.youtube.com/watch?v=lM_fUPE9Lm8
These are pics of the new Raspberry Pi case design I'm releasing. It's released under a Creative Commons attribution-share alike license, so feel free to download the designs and make your own!
Grab the design files here:
www.thingiverse.com/thing:25100
Grab a kit here:
builttospecstore.storenvy.com/collections/85796-enclosure...
Tonight I got as far as getting the RaspberryPi to detect when I'd hung up the phone and stop playing the radio.
Download Files here: www.thingiverse.com/thing:566670
Available for Purchase: builttospecstore.storenvy.com/collections/13701-all-produ...
These are pics of the new Raspberry Pi case design I'm releasing. It's released under a Creative Commons attribution-share alike license, so feel free to download the designs and make your own!
Grab the design files here:
www.thingiverse.com/thing:25100
Grab a kit here:
builttospecstore.storenvy.com/collections/85796-enclosure...
How to install a USB webcam in Raspberry Pi
If you would like to use this photo, be sure to place a proper attribution linking to Ask Xmodulo
Using an ATtiny85 to control power the Raspberry Pi. Momentary switch is used to turn everything on and then to turn it off again later.
This was the result of testing a scanner attached to a Raspberry Pi using SANE to scan to a remote file server. Something was(n't) working well.
Optical time-lapse video from a Raspberry PI
Hostname: xenon
Run Time: 1448901006
Sunrise: 2015-11-30 11:30:06.568964
Sunset: 2015-11-30 17:44:17
delta: 5.00 seconds
Captured Time: 2015-11-30 17:44:28.607091
Youtube: youtu.be/tRma6GbP53c (higher resolution and nicer playback)
The quality of this video is crap, but I wanted to show off that I finally managed to get Qt5 running on the Raspberry Pi, even with Qt3D (which is not included in the easy to use qtonpi prepackaged image, which incidentally is armel and not armhf so it has worse floating-point performance).
Qt5 is an absolutely awesome platform for the Raspberry Pi.
The secret is all here (warning: both BuildRoot and Qt5 will take hours to cross-compile on your x86 PC)
github.com/nezticle/RaspberryPi-BuildRoot/wiki/Walkthrough
(Note: The ./configure command in the instructions for building qtbase is missing the option "-opengl es2". After hours compiling, when it finally came time to link it complained about not being able to link libGL and I had to start all over again. The Raspbery Pi doesn't have libGL, only libGLES)
To configure QtCreator 2.5 to use the BuildRoot qmake you can follow the instructions here (these are for qtonpi. Replace /opt/qt5/bin with your BuildRoot output host/bin path):
To get QtCreator 2.5 running on your PC (I'm using 64-bit Ubuntu 12.04) with the BuildRoot version of qmake and not complain about a bad “default mkspec” you have to copy host/usr/mkspecs as staging/usr/mkspecs in your BuildRoot output directory.
QtCreator 2.5 doesn't seem to be able to create new BuildRoot/Qt5 projects properly, so you have to:
* copy the hello-qtonpi project from qtonpi
* replace all instances of hello-qtonpi with your project name
* add the BuildRoot output host/usr/bin directory to PATH (check that “which qmake” leads to the BuildRoot qmake)
* run qmake once
* load the project into QtCreator 2.5 and continue normally from there