I work on hardware projects for fun and profit. My focus is on low power wireless systems, industrial test equipment and RFID system where I developed various consumer and industrial products all the way from idea to mass production. As a long lasting member of the open hardware & hacker community, I had the privilege of getting insights into electronic designs from many angles. In 2006 I co-founded OpenBeacon.org – an active 2.4GHz RFID open hardware project for real time interaction and position tracking of people and animals. Our hardware is widely used in academia for social studies, modelling infectious diseases and for reverse-engineering interaction of people and architecture.