基于Arduino UNO的超声波测距系统.rar

#include <NewPing.h> #define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. void setup() { Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results. } void loop() { delay(50); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings. Serial.print("Ping: "); Serial.print(sonar.ping_cm()); // Send ping, get distance in cm and print result (0 = outside set distance range) Serial.println("cm"); }