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Connect the Trigger (Trig) pin of the ultrasonic sensor to digital pin 2 on the Arduino. Connect the Echo pin of the ultrasonic sensor to digital pin 3 on the Arduino. Connect the positive (anode) leg ...
The ultrasonic sensor measures the distance to an object. If the distance is less than a specified threshold, the buzzer will sound. Connect the ultrasonic sensor's VCC and GND to the Arduino's 5V and ...
An advanced blind assistance device integrates an ultrasonic sensor, Arduino UNO board, buzzer, and GSM module to create a cost-effective solution for enhancing the safety and autonomy of visually ...