Trying to make a servo flip a switch.

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5

here is the working code with the button. I did follow a guide i found online (forgot to bookmark it)

#include <Servo.h>;
 
 // pushbutton pin
 const int buttonPin = 2;
 // servo pin
 const int servoPin = 9;
 Servo servo;
//create a variable to store a counter and set it to 0
int counter = 0;
void setup()
{
  servo.attach (servoPin);
  
  // Set up the pushbutton pins to be an input:
  pinMode(buttonPin, INPUT);
}
void loop()
{
 // local variable to hold the pushbutton states
  int buttonState;  
  //read the digital state of buttonPin with digitalRead() function and store the           //value in buttonState variable
  buttonState = digitalRead(buttonPin);
  //if the button is pressed increment counter and wait a tiny bit to give us some          //time to release the button
  if (buttonState == LOW) // light the LED
  {
    counter++;
    delay(150);
  }
  if(counter == 0)
    servo.write (175);  // zero degrees
  else if(counter == 1)
    servo.write(120);

  //else reset the counter to 0 which resets thr servo to 0 degrees
  else
   counter = 0;
}

the new code. I think i added the light level correctly. All it does is make the servo jitter from 120deg to 180 deg

#include <Servo.h>

// servo set up
Servo servo1;

//light sensor set up
const int photoSen = A0; //photoresistor pin
const int sunny = 70; // light val for sunny, can be changed
int lightLevel; //light level

void setup() {
  // put your setup code here, to run once:
pinMode(photoSen, INPUT);
lightLevel = analogRead(photoSen);
servo1.attach(9);

}

void loop() {
  // put your main code here, to run repeatedly:

 int position;
lightLevel = analogRead(photoSen);

 if(lightLevel > sunny){ //stays off if sunny
  servo1.write(180);
 }
  if(lightLevel < sunny);{//turn on
  servo1.write(120);
 }
 if(lightLevel == sunny);{
  servo1.write(120);
 }

}

I added a serial print function so i can check if my photoresistor is working. it is.

void loop() {
  // put your main code here, to run repeatedly:
lightLevel = analogRead(photoSen);
Serial.println("lightLevel");
Serial.println(lightLevel);
delay(5000);