Smart Beeping Glasses Obstacle Detection for the Visually Impaired

These glasses help visually impaired users detect obstacles in their path using an ultrasonic sensor. The closer the object, the faster the glasses beep, giving audio feedback. This is a simple, portable, and life-improving project that uses Arduino, a buzzer, and an ultrasonic sensor.

Arduino Uno/R3

HC-SR04 Ultrasonic Sensor

Active buzzer

Breadboard and jumper wires

Small 9V battery (Hi-Watt 6F22)

Battery clip

Glasses frame for mounting

Tape or Hot Glue Gun to secure circuit to the glasses frame

Connect the ultrasonic sensor and the active buzzer to the Arduino like so

Open Arduino IDE.

Copy and upload the Smart Beeping Glasses code

Adjust beep thresholds if needed:

100 cm → no beep

100–50 cm → slow beep

50–10 cm → medium beep

<10 cm → fast beep