DFRobot ROB0118, Manual

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2. Download Code
Install the library firstly . Metro libray
http://www.dfrobot.com.cn/images/upload/File/20141031110246wu4065.rar
#include <Servo.h>
#include <Metro.h>
Metro measureDistance = Metro(50);
Metro sweepServo = Metro(20);
unsigned long actualDistance = 0;
Servo myservo; // create servo object to control a servo
int pos = 60;
int sweepFlag = 1;
int URPWM = 3; // PWM Output 0
－
25000US
，
Every 50US represent 1cm
int URTRIG= 10; // PWM trigger pin
uint8_t EnPwmCmd[4]={0x44,0x02,0xbb,0x01}; // distance measure command
void setup(){ // Serial initialization
myservo.attach(9);
Serial.begin(9600); // Sets the baud rate to 9600
SensorSetup();
}
void loop(){
if(measureDistance.check() == 1){
actualDistance = MeasureDistance();
// Serial.println(actualDistance);
// delay(100);
}
if(sweepServo.check() == 1){
servoSweep();