Tinkering

LadenZeit

Minimalist OLED store tracker with rotary control

STYX32

STM32 In-Circuit-Programming

BaSHi

Bidirectional adapter for Sniffing Home appliances (isolated)

xcb-2024

Cross Communication Badge to gamify conference encounters

lightdesk

Custom desk light and RGB strip controller.

kha

Modular RS-485 Multi-Master 19" Subrack Home Automation / Control

nakabo-avr64

A collection of neatly designed AVR64 breakout boards for easy development and experimentation.

eAVR

eAVR replaces the standard 6P (2x03) connector for AVR device programming and debugging with an edge connector.

MiniHelmetTracker

MiniHelmetTracker is a real-time standings table robot.

apa102nano

apa102nano is a quick and dirty board to easily use APA102 LED strips with an Arduino Nano.

gtimer

gtimer is a programmable controller for the GARDENA "Fully Automatic Flower Box Watering" system.

flattree

flattree is a two dimensional animated christmas tree featuring 12mm APA102 LED strips.

netmeter

netmeter is a trio of analog panel meters showing the up-/download speed of my AVM FRITZ!Box 7360 and ping roundtrip times.

Balkonbewässerung

Balkonbewässerung erklärt mein Gardena Bewässerungssystem auf meinem Balkon.

LoFence

LoFence is a LoRaWAN capable IoT electric fence monitoring system running on the The Things Network.

rubylife

rubylife is an entry-level soldering kit expressing love for the ruby community.

wham

wham is a silly project to annoy my colleagues at work :)

feinstaubnode

feinstaubnode is a citizen science project measuring air quality (PM2.5/PM10) and temperature/humidity across Germany.

RumbleRail

RumbleRail is a standalone and modular Floppy Disk Jukebox – Load midi files onto the SD card and take it with you for tunes on the go!

sldongle

sldongle (sld) provides a playful entry into the world of microcontroller development

rfm12square

A radio controlled 2×2 RGB status display

rfm12trx

A simple RFM12 433Mhz transceiver

SevenBlocks

A Tribute to Seven Segments

r0ket

r0ket is a full featured ARM microcontroller development board handed out as a conference badge to 3000 attendees of the Chaos Communication Camp 2011 – this is r0ket science!

flame

flame is an acrylic glass extension to the r0ket conference badge

MikroKopter

A group of brave people believed that the sky is their only limit, so they tinkered, discussed, reviewed, soldered and finally build six working MikroKopters