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. 2020 Apr 20;11:1883. doi: 10.1038/s41467-020-15373-y

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — Lighting 160 green LEDs with 5 mm diameter in parallel and 2 green LEDs with 5 mm diameter in serial by FSCC power management system (a) and TENG (b) directly at 1 Hz, the circuit diagram used to light LEDs is above the optical image. c Driving a buzzer with the pulse output mode at 1 Hz. d Voltage-time curve for continuously driving a medium size digital vernier caliper and e the corresponding image. f the enlarged image of the selected area in e. g Voltage-time curve of a temperature hygrometer with three sensors driven by 96-unit FSCC power management system. h The detailed voltage curve of the selected area in g. i The actual image of driving the temperature hygrometer.