Distance Measurement using HC-SR04 and 16x2 LCD with 8051 Microcontroller Overview This project demonstrates how to interface an HC-SR04 Ultrasonic Sensor and a 16x2 LCD with an 8051 microcontroller ...

This Java application demonstrates how to interface with an HC-SR04 Ultrasonic Distance Sensor module using the Pi4J library on a Raspberry Pi. The App.java class provides a straightforward example of ...

以前Raspberry Piに接続したLCDディスプレイに文字列を表示する記事を書きまして、機能をまとめたシンプルなクラスを作りました： こうなるとLCDに何か実用的な物を表示をしたくなります。そこで工具箱を散策して出てきたのが下の「距離センサー ...

前回Raspberry Piに距離センサーHC-SR04を取り付けて距離を測定、LCDに結果を表示する所まで作ってみました： しかし、実際に測定してみると真の距離に対して測定距離（超音波が飛んだ時間に音速を掛け算した距離）がズレる問題が発生しました。その理由は ...

[Emil] got his hands on a dozen HC-SR04 ultrasonic sensors, but wasn’t too happy with their performance. Rather than give up, he reverse engineered the sensor and built an improved version. Hackers, ...

The HC-SR04 ultrasonic range sensor is a pretty cool pre-wired module that you actually enjoy using when you start playing with electronics, microcontrollers, and robotics. As you might have noticed, ...

Infrared certainly has its uses, but if you’re trying to locate objects, ultrasonic detection is far superior. It’s contact-less, undetectable to the human ear, and it isn’t affected by smoke, dust, ...

Makers, developers and enthusiasts building distance related projects may be interested to know that the HC-SR04 ultrasonic sonar distance sensor is now available to purchase directly from the ...