View allAll Photos Tagged raspberrypi
~2.8 A @ 5 VDC with full iperf load
Each unit was 0.4 A (400 mA) @ 5 VDC
iMeter says 30 W AC, so I'm assuming 15 W power supply overhead (ick!)
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...
Made with JankyCam, Ashai Takumar 135mm and a 2x Vivitar Matched Multiplier. The IMX477 sensor has a crop factor of ~5.7x
F5.6 or thereabouts, ISO-5 (Not quite sure but what the IMX477 reported) and 1/16 shutter speed
See my PiCamera project [WIP]: github.com/TRex22/picam
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...
Please take a look at www.retrocomputers.eu for more info about my retro computers and Raspberry Pi collections.
Connecting an Arduino and Raspberry Pi to create a webpage with temperature and humidity measurements.
Download Files here: www.thingiverse.com/thing:566670
Available for Purchase: builttospecstore.storenvy.com/collections/13701-all-produ...
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.
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
Tonight I got as far as getting the RaspberryPi to detect when I'd hung up the phone and stop playing the radio.
First video from a custom built Kodak Brownie digital time lapse camera. Steam engine running at Kew Bridge. Raspberry Pi Zero combined with cheap webcam housed inside a hacked Kodak Brownie case capturing 1 still image per second rendered to video.
Download Files here: www.thingiverse.com/thing:566670
Available for Purchase: builttospecstore.storenvy.com/collections/13701-all-produ...
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
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
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)
Please take a look at www.retrocomputers.eu for more info about my retro computers and Raspberry Pi collections.