Humane Tech @ EA Aachen

I did a short lightning talk at our local effective altruism group about the topic Humane Tech. It's a neglected topic in my opinion and especially interesting for future engineers, considering they are the ones designing those systems. First, we have to get this right, then we can go for…

LoRa seminar report

attached my seminar report about the low-power wide-area network technology: LoRa report…

building a sleep-tracker

in our labratory this year, my friend benedikt and me, tried to build a sleep-tracker. i'll shortly outline the project. for more details check the attached report: report.pdf hardware we narrowed down our three main requirements: small, similiar to a smart watch. it shouldn't hamper or disrupt the users…

debugging wifi interfaces on LEDE/linux

i'm continously working on adding more information. trying to achieve some kind of cheat sheet for debugging wireless connections from the shell, especially for LEDE devices. listing information ifconfig lists the network interface. unfortunately it does not provide any physical properties like the theoretical network speed or the MCS index:…

LoRa slides

I recently wrote a seminar report and gave a talk about LoRa - a low-power wide-area network for the Internet of Things. Presentation slides I will publish the seminar report soon.…

chapter 5

Success for my buddies, success for my friends Success is the only thing I understand Head back home to the place I grew up Give my medals to the ones that I love I'll chase Harvey through the door in the wall He says, "never catch me never miss…

nextcloud on arm32v7 QNAP

source code docker compose file for setting up a nextcloud instance with postgres on arm32v7 qnap. uses postgres as it is available for the arm32v7 architecture creates a self signed certificate steps login to the webinterface of your NAS and open the container station application to create a new application:…

building your own stereo speakers & audio crossover

maybe there a more comments following about the physical design of the speakers Idea In the beginning we came up with the following constraints/ideas: Subwoofer & Tweeter (2-way design) 30l volume design the crossover ourselves Due to discount at VisaTon we ordered the speakers there. Based on recommendations from…

photos

i'll continue publishing my photos and videos elsewhere: photos.heim.xyz…

chapter 4

The room is almost all elephant. Almost none of it isn't. Pretty much solid elephant. So there's no room to talk about it. Kay Ryan…