Bluetooth low energy everywhere : using the audio interface to bring Ble features to any smart phone
Marcel Louis Meli, Dominique Truninger, Andreas Rüst, Benjamin Häring · Zürcher Hochschule für Angewandte Wissenschaften digital collection (Zurich University of Applied Sciences) · 2013
The integration of Bluetooth Smart Ready in many new smart phones allows them to communicate with low energy sensors, opening new opportunities for interaction with many useful devices. However, there are millions of smart phones in use (or on the market) that do not sport Bluetooth Low Energy. In order to allow owners of such phones to benefit (at least in part) from the services associated with the new Ble interface, a concept allowing the interface of a Ble module to a smart phone through the audio interface has been developed. The audio link is the common denominator to all mobile phones. Appropriate hardware and software was built and successfully tested on Android platforms. A variation of the concept also allows powering the module via the audio interface.