README.md

HC-SR04 - Ultrasonic Ranging Module

Device bindings for the HC-SR04 sonar distance sensor. Calculates the distance from an object by using the HC-SR04 distance sensor.

Documentation

• HC-SR04 data sheet

Usage

using (var sonar = new Hcsr04(4, 17))
{
    if (sonar.TryGetDistance(out Length distance))
    {
        Console.WriteLine($"Distance: {distance.Centimeters} cm");
    }
    else
    {
        Console.WriteLine("Error reading sensor");
    }

    Thread.Sleep(1000);
}

Hardware Required

• HC-SR04
• Male/Female Jumper Wires

Circuit

• VCC - 5V
• GND - GND
• Trig - GPIO 4
• Echo - GPIO 17

The fritz diagram above depicts how you should wire your RPi in order to run the program, the resistance for R1 is 1kOhm. (Optional).