Development of smart vending machine by using IoT technology

Ng, Chee Khei (2021) Development of smart vending machine by using IoT technology. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Due to the coronavirus pandemic, people have become hypervigilant of hand hygiene and would normally avoid touching things unnecessarily in public. Hence, IoT-enabled smart vending machine had become a safe and evolutionary innovation developed for businesses to cope with the ‘new normal.’ This user-friendly vending machine is bestsuited the pandemic world as it includes features such as end-to-end touchless checkout and contactless payment system. Besides, this machine also comes with a real-time stock tracking system which constantly keeps the owner updated. The main components of this project include Arduino Mega 2560 Rev 3 board, Arduino UNO board, ESP01 Wi-Fi (Wireless Fidelity) module, SX1278 LoRa RF module, RC522 RFID module, 360-degree continuous rotation servo motors, stepper motors NEMA 17, A4988 stepper motor driver, TTP223 touch sensor module, infrared proximity sensor and 16x2 Character LCD1602 display module. Customers can simply use Blynk application on their phone with internet access to control the machine in real time. The chosen commodity will then be converted to signal and wirelessly transmitted to Arduino Mega microcontroller to activate the delivery process. Analysis of the working performance of vending machine will be done, as well as the IoT evaluation of the vending machine which includes RFID, LoRa and Wi-Fi technologies.

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