Fig. 15: Applications of flexible humidity sensors in human-computer interaction field.

a The schematic diagram and application scenarios of the SAMP-based humidity sensor, as well as the demonstration of the sensor controlling a robotic vehicle to transport medical boxes via HMI155. Copyright © 2023, The Author(s). b The schematic diagram of characteristics, structure, and multifunctional applications of the IHSA-based flexible humidity sensor, as well as the demonstration of the sensor controlling intelligent vehicles through non-contact HMI53. Copyright © 2025, Wiley-VCH Verlag GmbH & Co. KGaA. c The schematic diagram and physical image of the humidity sensor, as well as its working mechanism126 Copyright © 2022, The Author(s). d A gesture used to control a robot without contact159. Copyright © 2023, Elsevier