Intelligent IoT Projects in 7 Days

How it works

First, we declare our sensor and servo. Then, we initialize our setup() function.

#include <Servo.h>      
                            
Servo servo;                                     
#define Svo_Pin   9 
#define GP2Y0A21  A0 
 
void setup() {   
  servo.attach(Svo_Pin);                        
  Serial.begin(9600);   
} 

In the loop() function, we move our servo from degree 0 to 180. On each degree change, we read a distance value from the sensor. Then, we calculate the distance by calling the get_gp2d12() function, defined in this sketch. Lastly, we print the resulting measurement to the serial port.

void loop() { for (int i=0;i<180;i++) { servo.write(i); uint16_t value = analogRead(GP2Y0A21); uint16_t range = get_gp2d12(value); Serial.print("Distance. Value: "); Serial.print(value); Serial.print(". Range: "); Serial.print(range); Serial.println(" ...