Solar Semaphore For Stockholm Ferries

Passenger ferries in the Stockholm archipelago rely on a century-old system of mechanical semaphores to signal when someone is waiting to board. The problem is they are hard to see in fog, rain, snow, at...

Ambient Energy Harvesting on IoT Show

Voltaic spoke with Olivier Bloch from the IoT Show and Björn Rosqvist from Qoitech about harvesting ambient energy and the future of powering IoT devices. Voltaic Systems designs small solar panels for high...