Passive RFID-based Textile Touchpad
Han Wu He, Xiaochen Chen, Leevi Raivio, Heikki J. Huttunen, Johanna Virkki · 2020
This paper presents the first prototype of a passive RFID-based textile touchpad. Our unique solution takes advantage of ICs from passive UHF RFID technology. These components are combined into a textile-integrated IC array, which can be used for handwritten character recognition. As the solution is fully passive and gets all the needed energy from the RFID reader, it enables a maintenance-free and cost-effective user interface that can be integrated into clothing and into textiles around us.