Learn how to use the ultrasonic sensor (HC-SR04) with Arduino. This tutorial will teach you what it is, how to assemble the sensor on Arduino, and, at the end, you'll implement it into an alarm system project.

Simple Arduno Rover with HC-SR04 Ultrasonic sensor. YOU will need to build this: HC-SR04 Ultrasonic sensor. Battery holder for 6 AA batteries. 6 AA batteries. 9g Servo. 2 gear motors with wheels. CD box. 4 male-to-male cables. 4 female-to-female cables. few cable ties. I buy all components for this rover on ebay.

Aug 5, 2017 · In this project I will introduce you to the HC-SR04 Ultrasonic sensor. It works by sending sound waves from the transmitter, which then bounce off of an object and then return to the receiver. You can determine how far away something is by the time it takes for the sound waves to get back to the sensor. Let's get right to it!

The robot is powered by a 2x 18650 battery pack, enabling it to navigate and avoid obstacles autonomously while also allowing for remote control via Bluetooth. Perfect for students, hobbyists, and developers, this project can be opened and customized directly in Cirkit Designer.

Learn how to use ultrasonic sensor HC-SR04 with Arduino, how ultrasonic sensor works, how to connect ultrasonic sensor to Arduino, how to code for ultrasonic sensor, how to program Arduino step by step.

This project uses an Arduino Nano to measure distance using an HC-SR04 ultrasonic sensor and triggers a buzzer alert when an object is detected within a certain range. The entire system is powered by a 3xAAA battery pack, making it portable and easy to deploy.

This project utilizes an Arduino Leonardo to monitor battery voltage and display the remaining percentage on a 16x2 I2C LCD. It features an HC-SR04 ultrasonic sensor that detects objects within 100 cm, triggering a buzzer that emits sound with varying frequency based on proximity.

Welcome to our very first Instructable regarding how to build an Arduino and Cubesat to use an Ultrasonic Sensor to map out the geography of Mars.

Mar 27, 2025 · 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 Arduino Nano, Ultrasonic sensors, Buzzer, and Led lights are secured together to form a functional blind stick hardware unit.. For the power supply, I decided to use a 9V battery, but in reality, it ...

Jan 19, 2020 · I am making a robot and am using an HC-SR04 sensor to take in the distance from the sensor to the object it is sensing. After getting that data, I want a motor to run if the distance is greater than 6 cm (this is just for testing).