• Zero downtime deployments with database changes - JavaZone 2016

    This year @ JavaZone, I talked about how to achieve zero downtime deployments with database changes and what architecture is required to do so. The slides are available here. Zero downtime continuous deployment architecture Sebastian Dehne from JavaZone on Vimeo.

  • Practical API design - JavaZone 2015

    Here is my talk I gave on JavaZone 2015 about Practical API design. Practical API design - Sebastian Dehne from JavaZone on Vimeo.

  • How to build a 22kW charging station + soft starter for a 25kVA transformer

    To enable faster charging of our EV, I needed 3 phase 400V. But in Norway, most houses only get 3 phase 230V (IT earthing system). In order to get 400V, a transformer is needed. In this project, you can see how I built my own 22kW charging station using a...

  • How to solder a thermal fuse

    For my next project, I needed to build in sme thermal protection which would cut off the power in case of overheating. The way to do that, is to use a thermal (cut off) fuse which is a one time use circuit breaker which disconnects the circuit once it reaches...

  • Smart phone controlled LED lamp

    I was meaning to put this up for quite a while now. Back in 2011, I designed and built a ceiling lamp which I wanted to share. Goal It started out when we wanted to improve the lighting situation in our living room and I was initially looking for an...