Wireless communication through linkage with a smartphone and other portable devices in the sensor area are essential for increasing the efficiency of utilization by storing sensing-value data. Thus, the demand for wireless technology is increasing due to the advantages it provides for the various applications that use these data. However, there is still considerable ambiguity concerning the low portability of such technology due to the increased volume with component integration, the high consumption of power, and the necessity of having a separate battery. Herein, we present solutions for these problems with demonstrations that involve 1) the miniaturization of the device by altering the structure of the built-in battery, 2) the use of a pressure-activated switch for the low-power driving technology, and 3) the implementation of a wireless communication platform by integrating a Bluetooth module with the devices. In addition, we demonstrate a human-interactive display that enables users to instantly observe the changes in the brightness of the organic light-emitting diodes (OLED) as the pressure changes. We show that the system can display the measured, real-time pressure values on the screens of mobile devices, which represents a significant advancement in the fields of energy science and biomedical science.
Bibliographical noteFunding Information:
This work was supported by the Ministry of Science & ICT and the Ministry of Trade, Industry and Energy (MOTIE) of Korea through the National Research Foundation ( 2016R1A2B3013592 and 2016R1A5A1009926 ), the Bio & Medical Technology Development Program ( 2018M3A9F1021649 ), the Nano Material Technology Development Program ( 2015M3A7B4050308 and 2016M3A7B4910635 ), and the Industrial Technology Innovation Program ( 10080577 ). Also, the authors thank financial support by the Institute for Basic Science ( IBS-R026-D1 ) and the Research Program ( 2018-22-0194 ) funded by Yonsei University .
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- Electrical and Electronic Engineering