Hardware Ruuvi, the maker of an open source Bluetooth sensor beacon has released a video that shows an impressive 500m range on its as-yet untuned antenna. Fujitsu and CRATUS Technology have released a new reference design platform for edge computing sensor platforms, aimed at industrial applications. Lime Micro has announced that its LimeSDR is entering mass production, following a crowdfunding campaign, providing a SDR aimed at IoT developers. Vesper has unveiled an always-on audio detector that uses sound energy-harvesting to power its detection, before waking the batteries to send an alert. Software Mizuho Financial Group has announced a test implementation of the Hyperledger Project’s blockchain technology, and also a partnership with IBM’s Bluemix Garage in Tokyo, for blockchain services and…