Christian Haschek's blog


about projects, teaching, programming and other stuff

How a scammer stole 500$ from me and in the end begged me not to tell his parents

152.863

Thank god not all scammers are professionals


Forget Pay2Win - the time has come for Learn2Win

3.370

how to reward players in any game for academic achievements


My door sends me chat messages

16.691

Raspberry Pi powered door sensor and Rocket.Chat bot with some neat info


DIY cloud lamp for fun and profit

2.156

ok, just for fun.. no profit involved


Letting students mod school computers

1.389

with some amazing results


How to visualize RADIUS connections

2.451

by parsing Windows Server log files


Raspberry Pi controlled power sockets

2.649

it's as easy as it sounds


My company just turned 10 and it was quite a ride

2.616

also: about the time Thomas Schranz and I almost invented Dropbox


That (not so) awesome time the police raided my home

27.524

lesson learned: Don't click on links random people send you


Water cooled NAS made from spare parts

3.160

with Macguyverish solutions for common problems


DIY: Cheap wall mounted, water cooled PC for 51$

17.243

with LED backlight and and all the good stuff


Let's analyze over twenty thousand proxies

2.113

It won't get much better


Analyzing 443 free proxies - Only 21% are not shady

27.855

what about the other 79%?


What would happen if you'd embed a remote JPEG with a HTTP link but the remote server is forcing HTTPS?

930


Neue Reifeprüfung analyzed

1.026

The simple way to get a good grade


Repairing a closed loop CPU water cooler with aquarium tubing

2.094

air bubbles... those f***ing air bubbles


Raspberry Pi 2 wireless temperature box

1.378

The π² + wifi + 1wire sensor = pure awesomeness


Chromebooks for Work & Classrooms

2.447

are they worth it?


Announcing: Socialcube LITE

1.264

My proof-of-concept evolved to a intuitive platform which is free for every educational institution


Why hackits are the first thing I teach new classes

2.787

they represent everything I love about computer science


My XP-based grading system

18.506

a modern approach to grading in the year 2014


Raspberry Pi controlled LEDs

12.360

to visualize the up-state of my servers


IKEA Server Rack

3.521

nope, not a lack rack


DIY hydroponic pot for ~36€

3.701

Easy to build and awesome for your plants


Temperature visualization

1.691

from 6 months of data


Raspberry Pi temperature monitor

3.444

with a nice graph and live updates


Why are free proxies free?

157.054

because it's an easy way to infect thousands of users and collect their data


My door sends me emails

9.803

Simple and cheap Raspberry Pi burglar alarm


HTML5 heat spreading simulation

1.221

with a simple JS algorithm


hackthissite.org ascii code picture challenge

1.526


PHP script that filters moods from twitter

945

..how depressed is the web?