The Hand-Mounted Haptic Feedback Sonar Obstacle Avoidance Asstance Device.. Or the Tacit

Here is a hack that takes the stick out of the blind mans hand. [Steve] has been working on the Tacit, a wrist mounted sonar device with haptic feedback, it’s like strapping a bat to your wrist to help you see. The Tacit uses two sonar ping sensors to measure the distance to the nearest obstacle, the relative distance … Read the rest