2021年10月7日 · We provide a schematic diagram on how to wire the ultrasonic sensor and an example sketch with the Arduino. The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object. This sensor reads from 2cm to 400cm (0.8inch to 157inch) with an accuracy of 0.3cm (0.1inches), which is good for most hobbyist projects.

2017年8月5日 · 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 …

2019年1月12日 · In this tutorial, you will learn how the sensor works and how to use it with Arduino. I have included 5 examples with a wiring diagram and code so you can start experimenting with your sensor. We will first look at an example that …

What is the HC-SR04? HC-SR04 is an ultrasonic ranging sensor that provides 2 cm to 400 cm non-contact measurement function. Is the HC-SR04 accurate? The ranging accuracy can …

Give your next Arduino project bat-powers with the HC-SR04 Ultrasonic Distance Sensor that can report the range of objects up to 13 feet away. This is a good thing to know when you’re trying to save your robot from hitting a wall.

Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!

For many (outdoor) projects a distance measurement is necessary or advantageous. These small modules are available starting at 1-2 bucks and can measure the distance up to 4-5 meters by ultrasound and are suprisingly accurate. This tutorial shows the connection and control.

HC-SR-04 has an ultrasonic transmitter, receiver and control circuit. In the ultrasonic module HCSR04, we have to give trigger pulse, so that it will generate ultrasound of frequency 40 kHz. After generating ultrasound i.e. 8 pulses of 40 kHz, it makes echo pin high.

2017年7月29日 · One of the most useful sensors for robotics projects is a distance sensor. The HC-SR04 is an inexpensive Ultrasonic Distance Sensor that can assist your robot in navigating around a room. With a bit of care and an additional component it can also be used as a measurement device.

In this comprehensive guide, we’ll dive deep into the HC-SR04 ultrasonic sensor, exploring its working principles, technical specifications, programming, and practical applications. Whether you’re a beginner or an experienced maker, this guide will equip you with everything you need to master the HC-SR04 ultrasonic sensor.