Abstract:
The purposes of this study were to design and develop an automatic monitoring and notification system for kitchens and bathrooms tailored for the elderly, utilizing Internet of Things (IoT) technology. The systems comprised four primary modules: 1) an external door locking mechanism employing fingerprint scanning to enhance security, 2) an automatic door opening/closing system utilizing Ultrasonic sensors and Micro Servo Motors to detect nearby objects, 3) a vibration detection system in bathrooms to notify emergencies or accidents, and 4) a gas leak detection system in kitchens with real-time notifications via LINE Notify. The entire system was controlled through a smartphone using the Blynk application, integrated with the NodeMCU board and various sensors, including SW-420, FPM10A, and MQ-5. The evaluation of the system's technology acceptance yielded positive results, with an overall (X = 4.40, S.D. = 0.69), indicating a high level of user satisfaction. The findings demonstrated that the system effectively improved comfort and safety for the elderly while enabling caregivers to monitor and respond to emergencies promptly and efficiently.