I have made a posture corrector using arduino and other hardware components like vibration motor , force sensor ,buzzers and display.
Video Link: https://drive.google.com/drive/folders/1p6UIyd1uQh9eCCpmvZtZAFplHAmh-yYv
Medium Link: https://medium.com/newolf-society/direct-posture-tracing-sensor-b4ee1f506f64
here is the tinkercad link :