How to control servo motor with potentiometer and ultrasonic sensor HC-SR04

Hello,

In this post I want to share how to control servo motor with potentiometer and ultrasonic sensor HC-SR04. Lets get started.

Schematic

- Schematic for servo motor + potentiometer

- Schematic for servo + Ultrasonic sensor HC-SR04

Program
- Program for servo motor + potentiometer

#include <Servo.h>

Servo myservo;

int pot = A0;                                            // Potensiometer ke pin A0 arduino
int nilai_analog;
int nilai_mapping;

void setup() {
  myservo.attach(3);                                // Servo ke pin 3 arduino
  pinMode(pot, INPUT);
}

void loop() {
   nilai_analog = analogRead(pot);
   nilai_mapping = map(nilai_analog, 0, 1023, 0, 180);
   myservo.write(nilai_mapping);
 
}


- Program for servo motor + ultrasonic sensor HC-SR04

#include <Servo.h>

Servo myservo;

const byte trig = 7;
const byte receive = 8;

unsigned long waktu;
float jarak;
int nilai_mapping;

void setup() {

  pinMode(trig, OUTPUT);
  pinMode(receive, INPUT);
  myservo.attach(3);
  Serial.begin(9600);
}

void loop() {
  digitalWrite (trig, LOW);
  delayMicroseconds(3);
  digitalWrite (trig, HIGH);
  delayMicroseconds(10);
  digitalWrite (trig, LOW);

    waktu = pulseIn(receive, HIGH);
    jarak = waktu/58;
    Serial.println(jarak);
    delay(100);
      nilai_mapping = map(jarak, 0, 20, 0, 180);
      myservo.write(nilai_mapping);
   
}


Video
- For video please click link below.

I hope it will help somebody :)
Thanks