Design and Development of A Semi-Autoclave for Packaged Food based on Arduino R4 WiFi and Internet of Things (IoT)
Baso Maruddani (a*) , Vina Oktaviani (b), Moch Sukardjo (b), Steviany Ayu Pramesti (b), and Chayapol Kamyod (c,d)

a) Electrical Engineering Department, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta 13220, Indonesia
b) Electronics Engineering Education Department, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta 13220, Indonesia
c) School of Applied Digital Technology, Mae Fah Luang University, Chiang Rai 57100, Thailand
d) Computer and Communication Engineering for Capacity Building Research Center, Mae Fah Luang University, Chiang Rai 57100, Thailand

Abstract

Sterilization is a crucial stage in maintaining the safety and quality of packaged food products, yet access to efficient and affordable sterilization equipment remains a barrier for micro and small enterprises (MSEs). This study aims to design and develop a semi-autoclave for packaged food based on an Arduino R4 WiFi microcontroller and the Internet of Things (IoT). The device is equipped with a type K thermocouple and a pressure transducer transmitter to monitor temperature and pressure, a 12V solenoid valve to open the steam valve automatically, and a safety valve as a manual safeguard. Temperature and pressure data are shown on an I2C LCD and sent to the Blynk application in real time over the internet. Testing was carried out using a comparison method against reference instruments. The results show that the reading error of the pressure sensor is below 5% and that of the temperature sensor below 2%, with an IoT data transmission delay ranging from 533 to 1,003 ms. The device reaches sterilization conditions of about 121 degree C and 15 psi and was evaluated on six types of packaged food. The semi-autoclave proves feasible and effective as an affordable food-heating solution for MSEs.

Keywords: Arduino R4- WiFi- Semi-autoclave- Internet of Things- Blynk- Packaged Food- Micro and Small Enterprises

Topic: Applied Technology in Physics