超音波センサHC-SR04とArduinoで距離を測定する https://rb-station.com/blogs/article/hc-sr04-arduino 解説記事 : 超音波センサHC-SR04とArduinoで ...

#define trigPin 9 // Initialze pin9 for HC-SR04 sensor trigger pin #define echoPin 8 // Initialze pin8 for HC-SR04 sensor Echo pin #define led 2 // Initialze pin2 for LED int motorPin1 = 7; // ...

超音波方式の距離センサを用いて、水面とセンサ取付部との距離を計測することにより、どの距離まで水面が上昇しているかを測定します。 水位を計測したい溝や水路、田んぼに設置し、超音波センサを取付けた位置と水面までの垂直距離を計測することで ...

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay ...

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Some of the best hacks are the ones which seem perfectly obvious in hindsight; a solution to the problem that’s so elegant, you wonder how it never occurred to you before. Of course we also love the ...

Abstract: The automation of height-increasing bridges during floating events is a crucial engineering challenge in areas prone to flooding or water surges. It proposes a solution to adjust the bridge ...

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