Automated IoT Payment System for Accommodation ServicesPetković, Luka (Avtor) Pilipović, Ratko (Mentor) IoTpayment systemaccommodation servicesembedded systemsESP32.The thesis describes the design and implementation of an automated IoTbased payment system tailored for accommodation services. The system leverages modern embedded technologies, specifically the ESP32 microcontroller, combined with a custom backend to enable secure, reliable, and efficient cash handling without the need for the host’s physical presence. The payment system is integrated within a modified safe, equipped with a touch display and a banknote validator, ensuring secure transactions. It communicates with a server via a REST API, providing real-time updates and management capabilities through a web-based frontend. The solution is adaptable and scalable, capable of meeting the evolving needs of the hospitality industry.20252025-04-18 11:55:02Diplomsko delo/naloga168617sl