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. 2020 Sep 10;8(9):e17057. doi: 10.2196/17057

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©Youngjin Moon, Jeongmin Oh, Jaeho Hyun, Youngkyu Kim, Jaesoon Choi, Jeongman Namgoong, Jun Ki Kim. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 10.09.2020.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Electric control diagram of the articulation control system. The touch input from a smartphone app is processed into motor control signals using an Arduino processor. The extra battery is optional.