Journal of Embedded Systems, Security and Intelligent Systems
Vol 6, No 2 (2025): June 2025

Internet of Things Experiment Device for Laboratory Activities in Heat Transfer Mechanism

Rahmawati, Siti Nur (Unknown)
Wahyuningsih, Daru (Unknown)



Article Info

Publish Date
30 Jun 2025

Abstract

As a branch of fundamental science, physics studies the laws underlying physical events that happen in nature. To learn physics, laboratory activity is necessarily involved, and it requires supporting devices to observe and study phenomena that are physically abstract, such as heat transfer mechanisms. This research aims to develop an Internet of Things (IoT) experiment device for heat transfer using NodeMCU and describe its working principle and measurement result. It involved NodeMCU, MAX6675 sensor, and LCD 1602 as the main components. The procedures carried out in this research included planning, developing, testing, data collecting, data analyzing, and reporting. Multiple measurements were carried out to analyze the standard error value of the device. The standard error values of both thermocouples used in the device were 1,336104 for the first thermocouple and 0,754315 for the second. Additionally, the IoT device’s thermocouple readings were calibrated using the linear regression method and the validation experiment showed that the calibration has increased its accuracy value.

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Journal Info

Abbrev

JESSI

Publisher

Subject

Computer Science & IT

Description

The Journal of Embedded System Security and Intelligent System (JESSI), ISSN/e-ISSN 2745-925X/2722-273X covers all topics of technology in the field of embedded system, computer and network security, and intelligence system as well as innovative and productive ideas related to emerging technology ...