Category: Hardware

16.01.2017

So it seems pretty hard to find a grafix-card that runs on completely open source and not closed-source drivers. we try never the less we try. Reception and impact https://www.mtu.edu/materials/department/faculty/pearce/ http://www.openhardware.org/ Cover for „Open-Source Lab“ by Joshua M. Pearce (2014). […]

Open (Plans-Source) Hardware – DragonBox Pyra – designed in Germany
16.01.2017

the massive challenge for Open (Source/Schematics/Plan/Recipe) Hardware seems the grafik-card… which often runs on closed-source drivers. This is true for the raspberry pi (it even needs binary-closed-source-blob to boot), for the EOMA68 project and the pyra. holy cow this thing […]

Re Install Grub2 Linux Boot Loader with KNOPPIX
21.12.2016

Manchmal wenn man eine Festplatte einfach von einem System (Laptop) in ein anderes System (Desktop/Workstation) plugged and played – läuft Linux meist reibungslos… aber Windows nicht, welches man evtl. für Spiele (was sonst) „braucht“ 😀 Also muss man Windows reinstallieren… […]

19.12.2016

what you will need is a NULL-MODEM CABLE (with all the twist an wirering) Linux Debian picocom / minicom settings: apt-get update; apt-get install picocom; # install picocom sudo bash; # become root dmesg | egrep –color ’serial|ttyS‘; # what […]

15.12.2016

Via Seriellem-D-Sub-9-poligen Anschluss: kann man bei vielen Geräten einen Terminal-Bildschirm-Output bekommen. D.h. man bekommt ASCII-Zeichen ausgegeben und kann mit dem Gerät interagieren, als wäre man via SSH oder TELNET eingewählt. Serielle Kabel, Nullmodem, LapLink usw. Oft müssen auch Daten zwischen […]

OffGrid Solar Powered Workstation (Open Source Hardware)
05.11.2016

This article is about finding out: What low-power PC with decent performance is best suitable for solar-powered (12v would be nice) Off-Grid-computing while respecting your privacy in an FSF-kind? i have to admit… i am still in the progress… no […]

10.10.2016

list all installed wifi and lan network cards lspci -knn|grep -EiA2 net; 00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 06)     Subsystem: Lenovo Device [17aa:2153]     Kernel driver in use: e1000e — 03:00.0 […]

06.09.2016

UPDATE! -> If you do not need big Antennas (or willing to solder them on yourself): What about using a AVM Fritz Stick with free (OpenSource) drivers? ONLY DRAWBACK: The Adapter is rather large… so it occupies 2x USB ports […]

30.07.2016

😀 i love the sarcasm and Australian accent 😀 makes such a boring task like choosing a proper digital meter more fun. take the Benning 1-3 which is about 100€ http://de.benning.de/de/corporate/produkte-dienstleistungen/pruef-und-messtechnik/digital-multimeter/benning-mm-1-1-mm-1-3.html If you need a clamp (inductive meassuring, without direct […]

01.07.2015

„Bei Lithium-Ionen-Akkumulatoren führt eine Tiefentladung auf unter 2,4 V zu irreversibler Schädigung und zu Kapazitätsverlust. Sinkt die Spannung einer Zelle auf unter 1,5 V, sollte sie nicht mehr verwendet werden. Es ist sehr wahrscheinlich, dass sich Kupferbrücken ausgebildet haben, welche dann zu […]

25.11.2014

in short: i5 is around +33% faster than i3. according to amazon i5 is 200% the price of the i3… so i really wonder if this is worth it. (the benchmark was from hardinfo, a quick one) less seconds per benchmark […]

25.09.2014

Did you know that facebook is building its „own“ servers? Facebook Saved Over A Billion Dollars By Building Open Sourced Servers http://techcrunch.com/2014/01/28/facebook-open-compute/   Hacking Conventional Computing Infrastructure We started a project at Facebook over two years ago with a pretty […]

14.03.2014

SAS is the successor to SCSI, while SATA is the successor of Parallel-IDE-ATA. Source: https://en.wikipedia.org/wiki/Serial_attached_SCSI Everyone says SAS is more „business“… just as SCSI was. I have got 2x QNAPs (raid5) and 1x SERVER (raid10) running on enterprise SATA harddisks. Without hardware-related […]

13.02.2014

Source: https://en.wikipedia.org/wiki/RAID#RAID_5_in_enterprise_environments „RAID 5 is seriously affected by the general trends regarding array rebuild time and chance of failure during rebuild.[56] In August 2012, Dell posted an advisory against the use of RAID 5 in any configuration and of RAID 50 with „Class […]