This simply means, if the High time is 15ms, then d = 15 x 10 -3 x 340 /2 ... Below is the Arduino Sketch used to test the JSN-SR04T ultrasonic distance sensor. This sample code does not require a ...

Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave Shield. Originally, this parking/distance sensor used a small TFT to display the distance to ...

One way to accomplish this involves four HC-SR04 ultrasonic sensor units that transmit data through an Arduino into a Linux computer. The end result is a virtual touchscreen that can be made at home.