How to use Capacitive Touch Sensors with Arduino

1#include <Servo.h>
2
3Servo myServo;                // Create a Servo object to control the servo
4
5int touchSensorPin = 2; // Touch sensor connected to pin D5
6int servoPin = 9;             // Servo connected to pin D9
7
8int angle = 0;                // Variable to store current angle of the servo
9int direction = 1;            // Direction of servo, 1 for forward, -1 for reverse
10
11void setup() {
12  myServo.attach(servoPin);    // Attach the servo to pin D9
13  pinMode(touchSensorPin, INPUT);  // Set the button pin as input      
14  myServo.write(angle);        // Initialize the servo at 0 degrees
15}
16
17void loop() {
18  bool touchDetected = digitalRead(touchSensorPin);//Check if the button is pressed
19  
20  if (touchDetected) {
21    // Move the servo by 2 degrees in the current direction
22    angle += direction * 2;    
23    // If the servo reaches 0 or 180 degrees, reverse the direction
24    if (angle >= 180) {
25      angle = 180;     // Limit the angle to 180 degrees
26      direction = -1;  // Reverse direction
27    } else if (angle <= 0) {
28      angle = 0;       // Limit the angle to 0 degrees
29      direction = 1;   // Reverse direction
30    }
31    myServo.write(angle);
32  } 
33  delay(20); 
34}