Creating a Raspbian repository
If you want to host your own Raspbian repository, this article is for you. A Raspbian repository consists of a special directory structure on a webserver. The files, including the packages, are all static – therefore this repository could also simply be hosted on an Amazon S3 instance, for example. The sources.list entry in Raspbian…
WeiterlesenTEK-Berry RAL light grey color comparison to official Pi Zero W case
The official Pi Zero W case is white, whereas the default TEK-BERRY sold as white is in reality RAL light-grey – a bit darker than white. Here’s two pictures. When placed side by side you can see the difference, otherwise it is hard to tell that the case is not indeed 100 % white: The…
WeiterlesenCancel datafeedwatch subscription / Datafeedwatch kündigen
DataFeedWatch is a very useful tool for generating feeds from your online shop into a variety of targets (e.g. eBay MIP, Amazon Marketplace, Geizhals, other price comparison engines). However some time you may want to cancel your subscription. The link for it is quite hidden. Here’s the way to do it: click on Account (the…
WeiterlesenInstructions for adding a user to a mongo database for mongo_orm
You don’t want your web application to access the database using your database admin user. Additionally you want it to access only one specific database – maybe you have additional databases running in your mongo instance. Prerequisites: mongo_orm expects the database configuration as environment variables or as a file config/database.yml in your project. The config/database.yml…
WeiterlesenBeamer Recherche
Beamer Recherche Technologien LCD Je Farbe ein LCD Panel, werden zusammen projiziert (Licht wird durch die LCD Paneele hindurchprojiziert) zweitbeste Kontrastwerte Gut für Helligkeit. Nachteile: · Fliegengitter-Effekt (“screen door effect”) · staubempfindlich · LCD-Memory-Effekt (Einbrennen) DLP nutzt kleine Spiegel auf einem Chip, um Licht an / aus zu modulieren. Meiste Modelle haben ein Farbrad um…
WeiterlesenVorteile von Android™ vs. Linux
Technische Grundlagen Android™ basiert auf dem Linux-Kernel, optimiert ihn aber besonders auf embedded Systeme & mobile Plattformen. Android nutzt den Linux Kernel mit einigen Anpassungen. Es unterscheidet sich jedoch grundlegend von üblichen Linux Distributionen, wie bspw. Debian / Raspbian / Alpine Linux. Üblicherweise nutzen Distributionen die GNU C Bibliothek (glibc), und einen X server (bspw.…
WeiterlesenBuilding a persistent in-line editing experience with Crystal, MongoDB (datanoise / sam0x17)
As documentation is still sparse, I would like to add some. This is what I am building currently: The individual fields are going to be editable with an inline editor, which will automatically save to the backend – no need for reloading the whole page. The point of the whole is a backend for my…
WeiterlesenQ&A LetsTrust TPM
This is a series of questions and answers for our LetsTrust TPM module. If you have an industrial project, and are looking at 100+ units, we’re happy to work with you to modify the product, if necessary. Contact us for details. Is there the possibility to support the TPM module on the Linux Kernel 3.1?…
WeiterlesenWLAN password Anonymebox 3B+
Usually the WLAN password for the Anonymebox 3B+ is set to a random password during manufacturing. It is shipped to you with a silver label, carrying the WLAN password on it which is set. If you order the image, or upgrade from an earlier Anonymebox firmware, there is a default password which is set. The…
WeiterlesenAlpine 3.9.0 initramfs init changes
Alpine 3.9.0 ships a new version of the init script in it’s initramfs. left: Alpine 3.9.0, right: Alpine 3.8.2 There are a number of interesting changes: better and earlier networking support for the boot process, with an additional kernel parameter for cmdline.txt: BOOTIF, allowing you to specify the device interface you want to use for…
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