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。
How To Program For Ultrasonic Sensor 如何对超声波传感器进行编程 Generate a 10-microsecond pulse in Arduino’s pin by usingdigitalWrite()anddelayMicroseconds()functions. For example, pin 9: 使用digitalWrite() 和 delayMicroseconds() 函数在 Arduino 的引脚中生成 10 微秒的脉冲。例如,引脚 9: digitalWrite...
Next up we have our very own Grove – Ultrasonic Distance Sensor, Seeed’s very own version of an ultrasonic distance sensor which is comparative to the HC-SR04. It can measure from 3cm to 350cm with the accuracy up to 2mm. It is a perfect ultrasonic module for distance measurement, prox...
The MB1240 XL-MaxSonar-EZ4 is a high-performance ultrasonic distance sensor with a range of 20 to 765 cm. While this tutorial is written for the MB1240, it can also be used for other MaxBotix sensors, and serves as a great reference for those interested in using an ultrasonic sensor with...
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 ...
KEYESTUDIO is a creative robotics and open source hardware manufacturer and exporter, specialized in micro-controller, starter kit, robot, shield, sensor, display, modules, etc. for Arduino, Raspberry PI, Micro:Bit.
US$0.63-1.05 / Piece 10mm 58kHz Open Design Receiver Ultrasonic Audio Speaker Sensor US$0.63-1.05 / Piece Open Ultrasonic Sensor Distance Measuring Transducer Sensor US$0.63-1.05 / Piece 58kHz Receiver Open Ultrasonic Sensor for Subject Detective US$0.63-1....
This project introduces us to the HC-SR04 Ultrasonic Sensor. We will be creating an alarm circuit with a buzzer and warning LEDs. You will understand how an ultrasonic sensor works and how to interact with it in code. This is a very handy addition to your electronics projects for obstacle ...
Wi-Fi or Ethernet cable for the Pi 图1-7 Jumpers in ribbon cable form. Pull off what you need 图1-6 Common parts: Raspberry Pi, Arduino Uno, ultrasonic sensor, battery holder, and breadboard你不需要对显示器和键盘着迷。一旦你阅读了第二章,在那里我们安装和配置了 Raspberry Pi,你不再需要它...
Visual Designer makes Arduino™ development fun and quick for beginners and experts alike. Dozens of ready-made Arduino shields and breakout boards are included together with high level methods to control them from your program. This includes both STM32 Arduino with the Blue Pill board as well ...