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https://github.com/erriez/erriezhcsr04
HC-SR04 Ultrasonic Distance Sensor library for Arduino
https://github.com/erriez/erriezhcsr04
arduino cm distance erriez hc-sr04 library measure robotic sensor ultrasonic
Last synced: 29 days ago
JSON representation
HC-SR04 Ultrasonic Distance Sensor library for Arduino
- Host: GitHub
- URL: https://github.com/erriez/erriezhcsr04
- Owner: Erriez
- License: mit
- Created: 2020-09-10T10:17:35.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2020-09-12T12:56:19.000Z (over 4 years ago)
- Last Synced: 2024-11-01T22:43:25.283Z (3 months ago)
- Topics: arduino, cm, distance, erriez, hc-sr04, library, measure, robotic, sensor, ultrasonic
- Language: C++
- Homepage: https://github.com/Erriez/ErriezArduinoLibraries
- Size: 477 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# HC-SR04 Ultrasonic Distance Sensor library for Arduino
[![Build Status](https://travis-ci.org/Erriez/ErriezHCSR04.svg?branch=master)](https://travis-ci.org/Erriez/ErriezHCSR04)
This is a HC-SR04 I2C RTC library for Arduino.
![HC-SR04 sensor](https://raw.githubusercontent.com/Erriez/ErriezHCSR04/master/extras/HC-SR04.png)
## Library features
* Measure distance between 3cm .. 400cm or 1.18" .. 157.48"
* Accuracy around +/-1cm
* Optimized pin control for AVR## Hardware
**Arduino UNO**
* TRIG pin to Arduino Uno pin 2
* ECHO pin to Arduino Uno pin 3
* VCC pin to Arduino Uno pin VCC
* GND pin to Arduino Uno pin GND![Arduino Uno HC-SR04](extras/Arduino-Uno-HC-SR04.png)
## Examples
Arduino IDE | Examples | Erriez HC-SR04:
* [HC-SR04 Centimeter](https://github.com/Erriez/ErriezHCSR04/blob/master/examples/ErriezHCSR04Centimeter/ErriezHCSR04Centimeter.ino)
* [HC-SR04 Inch](https://github.com/Erriez/ErriezHCSR04/blob/master/examples/ErriezHCSR04Inch/ErriezHCSR04Inch.ino)## Documentation
* [Doxygen online HTML](https://erriez.github.io/ErriezHCSR04)
* [Doxygen PDF](https://github.com/Erriez/ErriezHCSR04/blob/master/ErriezHCSR04.pdf)
* [Datsheet](https://www.google.com/search?q=%22hc-sr04%20pdf%22)## Example
```c++
#include// Pin defines
#define TRIG_PIN 2
#define ECHO_PIN 3// Create sensor object
ErriezHCSR04 hcsr04(TRIG_PIN, ECHO_PIN);void setup()
{
// Initialize serial port
delay(500);
Serial.begin(115200);
while (!Serial) {
;
}
Serial.println(F("\nErriez HC-SR04 ultrasonic distance sensor example\n"));// Initialize pins
hcsr04.begin();
}void loop()
{
int16_t distance;// Measure distance in centimeter
distance = hcsr04.getDistance();// Print distance
Serial.print(F("Distance: "));
if (distance >= 0) {
Serial.print(distance);
Serial.println(F(" cm"));
} else {
Serial.println(F("-"));
}// Wait
delay(250);
}
```### Measure distance in Inches
```c++
void loop()
{
float distance;// Measure distance in Inch
distance = hcsr04.getDistanceInch();// Print distance
Serial.print(F("Distance: "));
if (distance >= 0) {
Serial.print(distance);
Serial.println(F("\""));
} else {
Serial.println(("-"));
}// Wait
delay(250);
}
```## Library dependencies
* None
## Library installation
Please refer to the [Wiki](https://github.com/Erriez/ErriezArduinoLibraries/wiki) page.
## More Arduino Libraries from Erriez
* [Erriez Libraries](https://github.com/Erriez/ErriezArduinoLibraries)