Authors: Jenyfal Sampson, Vihash.A, B.R.V.Dharma Raju, Sounder.K, S.P.Velmurugan, Rishi Kumar
Abstract: Back pain from sitting too long and bad posture is now one of the most common health problems for students, office workers, and computer users. Posture-tracking cameras and high-tech ergonomic furniture are some of the more common solutions, but they can be expensive, hard to set up, or raise privacy concerns. This paper presents an IoT-based Posture Monitoring and Back Pain Alert System developed with an ESP32 microcontroller, a flex sensor, a force sensor, and an MPU6050 accelerometer–gyroscope module. It is a cost-effective and user-friendly alternative. A Flutter mobile app collects the user's height and weight, which lets the system automatically set sensor thresholds for different body types. The ESP32 checks your posture in real time and sends sensor data to the app over Wi-Fi. If the app notices that you are slouching, putting too much pressure on your back, or tilting your torso too much, it will immediately show a posture alert message, telling you to fix the problem. The system runs on a Li-ion battery with a TP4056 charging module, which makes it portable and allows for continuous use. Experimental observations demonstrate that the personalized threshold mechanism markedly diminishes false alerts while enhancing comfort and user acceptance. The suggested design is a good, cheap, and private way to fix your posture and keep your back from hurting.
DOI: http://doi.org/10.5281/zenodo.20761757
