Indonesian Journal of Electrical Engineering and Informatics (IJEEI)
Vol 14, No 3: September 2026

Controller-Side Reliability of Edge-Deployed Thai Speech and Gesture Smart-Load Control on Raspberry Pi 5

Neres Supalugsanasuksakorn (Computer Technology Department, Khon Kaen Technical College, Khon Kaen, Thailand)
Sakron Taeanonjiew (Electronic Technology Program, Khon Kaen Technical College, Northeastern Vocational Education Institute 3, Khon Kaen, Thailand)
Apinun Khonmanee (Electronic Technology Program, Khon Kaen Technical College, Northeastern Vocational Education Institute 3, Khon Kaen, Thailand)
Saweth Hongprasit (Department of Computer Engineering, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen Campus, Khon Kaen, Thailand)
Wachirapunya Punyawong (Electronic Technology Program, Khon Kaen Technical College, Northeastern Vocational Education Institute 3, Khon Kaen, Thailand.)



Article Info

Publish Date
30 Sep 2026

Abstract

This paper presented an edge-deployed smart-load control system on Raspberry Pi 5 using independent Thai speech and vision-based finger-gesture channels mapped to a common ten-command GPIO actuation layer. Rather than proposing a new recognition algorithm, the study evaluated controller-side execution reliability using GPIO-confirmed binary outcomes and supplemented the human-trial evaluation with system-level engineering profiling. Structured trials examined interaction distance and background speech, yielding 90.0% execution success for both voice (54/60) and gesture (63/70), with different condition-specific performance patterns. A separate 10.5-min integrated profiling run measured computational behavior on the Raspberry Pi 5. Median processing latency was 46.90 ms for Vosk audio blocks and 72.15 ms for MediaPipe hand processing, while median GPIO software-update latency was 0.0688 ms. Median system CPU utilization was 32.30%, process memory was 427.55 MB, and CPU temperature was 83.70 °C; non-zero throttling-status values were observed during sustained workload. These results characterized both execution reliability and resource constraints for non-critical smart-load control on Raspberry Pi-class edge hardware.

Copyrights © 2026






Journal Info

Abbrev

IJEEI

Publisher

Subject

Computer Science & IT Electrical & Electronics Engineering

Description

Indonesian Journal of Electrical Engineering and Informatics (IJEEI) is a peer reviewed International Journal in English published four issues per year (March, June, September and December). The aim of Indonesian Journal of Electrical Engineering and Informatics (IJEEI) is to publish high-quality ...