The set-up process is very simple, and best understood by referring the wiring diagram. If everything goes right,you should see the burning eye of the red LED when there is no object in the safe-zone ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

The controller along with ultrasonic sensor is used to detect an obstacle and provide feedback in the form of speech notification to the subject and vibration to the shoe. It uses Bluetooth technology ...

The concept behind this prototype is that any obstacle will be detected and a physical notice will be given to the wearer in real time. For the physical feedback, Denver has made some vibrating boxes ...

Each sensor constantly scans the environment using ultrasound to detect anything closer than 60 feet. As an object moves near, the sensor sends a message to a controller box that calculates the ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.