Servo Motor & Ultrasonic Sensor

Control the servo motor by using the ultrasonic sensor.

IntermediateShowcase (no instructions)133,571

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

servo motor

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

Control the servo motor by using the ultrasonic sensor. You can see the motor works differently based on the height that the sensor detects.

Code

code of servo motor and ultra sonic sensor

#include <Servo.h>
Servo servo1;
int trigPin = 9;
int echoPin = 8;
long distance;
long duration;
 
void setup() 
{
servo1.attach(7); 
 pinMode(trigPin, OUTPUT);
 pinMode(echoPin, INPUT);// put your setup code here, to run once:
}
 
void loop() {
  ultra();
  servo1.write(0);
  if(distance <= 10){
  servo1.write(90);
  }
}
 
void ultra(){
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = duration*0.034/2;
  }