Good night,<\/p>\n
Going on with my adventures with Arduino and sensors, today I decided to play with Ultrasonic sensor HC-SR04 to measure distance.<\/p>\n
HC-SR04 is pretty easy to work with, it has 4 pins, VCC to energy, Trig to start a measurement, Echo to get the distance, and GND to ground.<\/p>\n
It has a library to get it working, it is called Ultrasonic. The only problem that I had was the Library is out of date, it still uses WProgram.h but Arduino 1.0.1 uses Arduino.h, so I updated it. (You can get on the end of the post).<\/p>\n
The library must be included on your dir “arduino-1.0.1\/libraries” and you must restart your IDE.<\/p>\n
Sensor VCC connects to Arduino +5V pin
\nSensor Trig connects to Arduino PIN 12
\nSensor Echo connects to Arduino PIN 13
\nSensor GND connnects to Arduino GND PIN<\/p>\n
You can configure it on trig and echo variables.<\/p>\n
[code lang=”c”]
\n#include “Ultrasonic.h”
\nint trig = 12;
\nint echo = 13;
\nUltrasonic ultrasonic(trig,echo);<\/p>\n
void setup() {
\n Serial.begin(9600);
\n}<\/p>\n
void loop()
\n{
\n Serial.print(“Distance CM:”);
\n Serial.println(ultrasonic.Ranging(CM));
\n Serial.print(“Distance INC:”);
\n Serial.println(ultrasonic.Ranging(INC));
\n delay(100);
\n}
\n[\/code]<\/p>\n
Refer\u00eancias: Good night, Going on with my adventures with Arduino and sensors, today I decided to play with Ultrasonic sensor HC-SR04 to measure distance. HC-SR04 is…<\/p>\n
\nHC-SR04 DataSheet<\/a>
\nBiblioteca Ultrasonic atualizada para Arduino 1.0.1<\/a><\/p>","protected":false},"excerpt":{"rendered":"