1) 利用 Arduino 的数字引脚给超声波传感器的 Trig 引脚至少 10 微秒的高电平信号,这会让HC-SR04 超声波测距模块发射出8个40K赫兹的超声波脉冲(ultrasonic burst)。 2) 8个超声波脉冲发出后,echo引脚会输出高电平。假如没有声波返回,echo引脚会在38微秒后输出低电平。假如有声波返回,echo引脚会进入低电平状态。
MaxBotix MB1240 Arduino example code – Pulse width In this example, we will be using the other output of the sensor: the pulse width output. /* Arduino example code for MaxBotix MB1240 XL-MaxSonar-EZ4 ultrasonic distance sensor: pulse width output. More info: www.makerguides.com */ #defi...
The output of the code displays the distance of an object from the sensor in both inches and centimeters in the serial monitor. To know more about HC-SR04 Ultrasonic Sensor using Arduino refer to this link Examples of Ultrasonic Module interfacing HC-SR04 Ultrasonic Module Interfacing with PIC18F...
You can upload the following example code to your Arduino using the Arduino IDE. Next, I will explain to you how the code works./* Example code for HC-SR04 ultrasonic distance sensor with Arduino. No library required. More info: https://www.makerguides.com */ // Define Trig and Echo ...
rtmodel.h ### Writing source file ert_main.c ### TLC code generation complete. ### Evaluating PostCodeGenCommand specified in the model ### Using toolchain: Arduino AVR v1.6.13 | gmake (64-bit Windows) ### 'C:\Users\CB.EN.P2AEL16019\Desktop\ultr...
Arduino Ultrasonic Sensor I have just received a very affordable fun toy from China AliExpress Market Place, the ultrasonic sensor, it is about RMB15 (USD2.50) excluding the shipping cost or you can get this Ultrasonic Sensor for a very good price from Amazon. … Continue reading → Posted ...
With Arduino ultrasonic sensors like the HC-SR04, you can measure the distance. Through this Arduino tutorial, you will learn how an Ultrasonic sensor works and how do you use it with the Arduino and even with the Raspberry Pi.
Arduino UNO Based Distance and Altitude Measurement using Ultrasonic SensorAmreiss, G. N. SachinInternational Journal of Emerging Trends in Science & Technology
Arduino Library Overview tip If this is your first time using Arduino, we highly recommend you to refer to Getting Started with Arduino or see the simple tutorial below: The button below will take you directly to our Arduino program library for the Grove Ultrasonic Sensor (SMS812)....
/Firmware - Arduino example code. Make sure to check the pin definitions and what you are connecting to. Documentation Hookup Guide - Basic hookup and project example using the ultrasonic sensor. (Note: The example code used in this tutorial is slightly different than the basic example used ...