This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection. ... (within 5 cm from the HC-SR04 module), and ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

Smart Blind Stick using Arduino Circuit Diagram. The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind people, detailing how the ...

These ultrasonic sensors will send an Ultrasonic wave using the ultrasonic transmitter of the sensor. These ultrasonic waves travel through air and on colliding with an obstacle, get reflected back.

1 Arduino Ultrasonic Sensor (HC-SR04) 1 buzzer; Ultrasonic sensor, mounting circuit; It is a very simple circuit. On the one hand, we will have all the alerts, acoustic and visual, and on the other ...

Ultrasonic sensor. Arduino pro mini. Buzzer. Haptic motor. Lithium ion battery. Switch. 3d printed enclosure. So, let’s check out the step by step procedure to make Saarthi. Circuit Diagram - Blind ...

A security system using an Arduino UNO, ultrasonic sensor, microphone, LDR sensor, buzzer, ... send the number 1 through bluetooth to the Arduino. To disable -- 0. (I entered 'Switch Mode' on 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.