For wheelchair users, especially power wheelchair users, it can be hard to see what's behind the chair, especially when backing up or turning, which can be dangerous because there is a high potential to hit an object or person. The aim of this project is to solve that problem by creating a low-cost device that can detect obstacles and warn the wheelchair user so they don't hit objects or people, similar to how a car has object detection when backing up.

Arduino MEGA 2560 Rev3: Arduino boards are low cost and are programmed in C++, which makes it easy to use for this project.

2 HC-SR04 Ultrasonic Sensors: Ultrasonic sensors are pretty accurate and have a large range. 1 of the sensors is used to detect objects when backing up, and the other one is to detect objects while turning.

Mini OLED Display: This bright display is useful to clearly display the distance from the object.

chairSense Demo (Youtube Link)