본문 바로가기
  • Home

A Study on Enhancement of Characteristics of Input/Output Port Protection Circuit of IoT Coding Teaching Aids

  • Journal of Software Assessment and Valuation
  • Abbr : JSAV
  • 2022, 18(1), pp.53-59
  • DOI : 10.29056/jsav.2022.06.07
  • Publisher : Korea Software Assessment and Valuation Society
  • Research Area : Engineering > Computer Science
  • Received : June 8, 2022
  • Accepted : June 20, 2022
  • Published : June 30, 2022

KWON SUNG YEOL 1 Lee HyunChang 2

1부경대학교
2공주대학교

Accredited

ABSTRACT

In this paper, a circuit that can compensate for the weakness of the limiter circuit used for port protection of microcontroller training kits for learning various controllers including IoT devices is presented. To do this, the problems occurring in the existing protection circuit were analyzed, and as a result, it was confirmed that the microcontroller could not be protected against the continuous high voltage input due to the mistake of the trainee who is not yet familiar with the hardware. A new circuit is proposed to protect the microcontroller port from such continuous high voltage input. In order to prove the effect of the proposed circuit, an experimental circuit was constructed and the experiment was carried out. As a result of the experiment, it was confirmed that the microcontroller port suppresses the voltage below the allowable threshold for the overvoltage input.

Citation status

* References for papers published after 2023 are currently being built.