The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

Default value for maximum measurement distance is 4m, since HC-SR04 sensor can't measure reliably beyond that. However, if you are using another sensor or if you you don't care about distances larger ...

Arduino-based system which can measure distance to closest object and turn on the light when object is too close.

Abstract: Arduino boards are very useful for teaching electronics and programming in vocational training, but their massive use can discourage the learning of hardware development techniques by ...

Abstract: High-speed, high-capacity wireless communication is required for various use cases. We developed 60GHz wireless modules that integrate lens antennas and ...