Ultrasonic Sensor Walking aid 3DX

thingiverse

My wife struggles with seeing clearly, especially when we're out walking together. I've taken on the responsibility of warning her about upcoming steps so she can avoid tripping or falling. This experience sparked an idea for a handheld device that could detect changes in elevation using an ultra sonic sensor and two LED lights. Red indicates a step up, while yellow signals a step down. The program continuously captures distance data and compares it to the next measurement, flashing the corresponding lights or remaining dark. I've designed the handle to house the battery and incorporated a movable sensor holder that can be easily modified for future applications. Measuring distances from objects is a natural extension of this concept. As this prototype takes shape, my focus has shifted towards improving its performance. Future iterations will likely run on a Feather board, significantly reducing the device's size. I also plan to refine the code so that the lights only flash when there's a notable change in height, such as 1 inch. To bring this project to life, you'll need to print support material for both the front and back of the device, along with two rings.