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, ...

But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation to send music ultrasonically from his laptop to a ...

An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic ...

HC-SR04 Ultrasonic Sensor Overview . Before we go and understand how the ultrasonic distance sensor works, we will first learn what ultrasound is: ultrasound sound is a high-pitched wave, in which the ...

This is a two-pin that is used to connect the module to the ultrasonic unit. R27 Jumper. There is a small space present on the PCB that is called the R27 Jumper, by placing different values of ...

The HC-SR04 module and its working are shown in Figs 1 and 2, respectively. Fig. 1: HC-SR04 ultrasonic sensor module Fig. 2: Working of HC-SR04 Fig. 3: Connection of HC-SR04 module with Raspi. When ...

In this project I will introduce you to the HC-SR04 Ultrasonic sensor. It works by sending sound waves from the transmitter, which then bounce off of an object and then return to the receiver. You can ...

As can be seen in these figures, the receiver catches the parasitic signal (these glitches are circled in red) from the transmitter from 0 to ~20 cm. The results prove that the circuit works as ...