This year Wiliot has designed and built 5 prototype chips. A very rapid rate of innovation for a semiconductor company. With each version we have increased robustness, and also added encryption, multiple on chip sensing capabilities, and harvesting from three radio bands simultaneously. Our most recent, and exciting milestone is the completion of the first production chip design, a 'release candidate', which should power the Version 1.0 Wiliot tag and move us from making small batches of product to volume production! We have been working with our RFID partners to prepare mass production of Bluetooth tags using RFID production techniques and machinery. We have already proved that a “crystal free Bluetooth radio” can work in the face of environmental changes like temperature changes and when placed on different surfaces and are looking forward to enabling scale.