Author Archives: peter

10 Gbit Ethernet interconnecting my servers.

Posted on January 19, 2021 by peter

My Christmas present for myself this season were 10Gbe Ethernet.  I had no idea what to get so I bought the cheapest I could find on E-bay, $11 each delivered. These were IBM branded OCe10102 cards made by Emulex. Two … Continue reading →

Posted in FreeBSD, internet, Linux | Comments Off on 10 Gbit Ethernet interconnecting my servers.

Dad was it you who brought the internet to Denmark ?

Posted on December 23, 2020 by peter

I did not bring the internet to Denmark, but I was one of the first to interconnect our computers at Aalborg University using internet protocols, and I was involved in DKUUG/DKnet which were the front-runners for open systems and networks. … Continue reading →

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Server Power supply DPS-750TB

Posted on July 7, 2020 by peter

and how to get PMBus access from f.ex. a Raspberry Pi My favorite power-supply for almost anything is the Server PSU for Dell R510/R710/R910. It is a 750w 12v 60amp supply with 80-plus-gold standard,  you can get them for $10-20 … Continue reading →

Posted in Arduino, Camper, Embedded, Hardware, HomeAutomation, Linux, MySensors, Raspberry Pi | Comments Off on Server Power supply DPS-750TB

Server Power supply DPS-1200FB

Posted on July 6, 2020 by peter

Among hackers the DPS-1200FB seem to be the most popular choice for a powerfull Server PowerSupply 12volt 100Amp for less than $20 delivered. There is a lot of information available for this PSU.  So if you want to really get … Continue reading →

Posted in Arduino, Camper, Embedded, Hardware, HomeAutomation, Linux, MySensors, Raspberry Pi | Comments Off on Server Power supply DPS-1200FB

PlatformIO and Marlin – and how to have separate config files, for different 3Dprinter while sharing the same code.

Posted on April 27, 2020 by peter

I am using Marlin 2.0 to control my 3D printers, Marlin 2.0 can still be compiled and installed from the Arduino-IDE,although I use the supplied Makefile. To take advantage of other processors you have to use PlatformIO. In this article … Continue reading →

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Corona and DIY statistics

Posted on April 2, 2020 by peter

 It is hard to know who to believe these days. Too many headlines with too little information that is relevant to me. But you do not have to rely on CNN or Danmarks Radio to digest the information for you, … Continue reading →

Posted in COVID-19 | Comments Off on Corona and DIY statistics

Marlin 2.0 using Makefile (and reclaiming io-pins on atmega1284p based mainboard)

Posted on March 20, 2020 by peter

I am using Marlin 2.0 to control my 3D printers, I like to be in full control so I compile my own firmware, adding my own tweaks. Most people probably use the Arduino IDE to compile and install the firmware … Continue reading →

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MySensors Debug print @ 5.3Mbit/sec freeing Hardware Serial Port

Posted on November 13, 2019 by peter

MySensors provides a lot of useful debugging information on the serial port when MY_DEBUG is defined, I need to use the HardwareSerial for another purpose. but would still like to have the option to see the debug prints. which could … Continue reading →

Posted in Arduino, Embedded, MySensors | 1 Comment

Camper Van

Posted on September 6, 2019 by peter

We have bought ourselves a camper van, it started with the idea that I would buy a little pop-up-camper, which you with some luck can pickup for $400 on craigslist, then I considered a normal camper trailer, small enough to … Continue reading →

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Wifi – bandwidth throttled for guest – part2

Posted on January 18, 2019 by peter

To give internet access to the friends of our Bandits who visit us, I have set up a password free WiFi guest network. This network is made available on all our routers, but bandwidth is throttled to 2 Megabit Download, … Continue reading →

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