Untitled

#include <Servo.h>
//Q = question, C= tell me if i understood the concept yes or no ?
Servo servo1;

float N= 1000;

float max_sense;
float min_sense;
float delta;
float delta_ave = 0.5*delta/sqrt(N);

float time = micros(); // returns the value of 1ms

float noise_lvl;
void setup() {
  // put your setup code here, to run once:
  

  Serial.begin(115200);  //Q: why not at 9600;


}

void loop() {
  
  int N, i; //UNDERSTOOD
  float min,max,ave,sum,delta; //UNDERSTOOD

  int analog_input0; //UNDERSTOOD
  int voltage; //UNDERSTOOD

  min = 1.0e6; //Q: why this value specifically and why bad value 
  max = -1.0e6;//Q:idem
  sum = 0.0;  //UNDERSTOOD

  for(i=1;i<=N;i++){  //C:we need a loop here because we need to repeatedly measure the noise level of sensor until we arrive to the 1000th measurement
    analog_input0 = analogRead(A0);
    voltage0 = analog_input0/1023.0*5;
  

  sum += voltage0; //UNDERSTOOD

   if(voltage0 > max) max = voltage0; //C:we need this part to make sure the voltage stays between the max and min, if not, the voltage is the max or min
   if(voltage0 > max) max = voltage0; //idem

   delay(1); //UNDERSTOOD
  }
  ave = sum/N //UNDERSTOOD
  delta = max = min; //UNDERSTOOD
  
 Serial.print("\nave_voltage =");
 Serial.print(ave,5); // Q: why do we need to bring the answer to 5 decimal places

 Serial.print("\nestimate of noise level =");
 Serial.print(delta/2.5) // Q: idem




 delay(1000); //UNDERSTOOD
 exit(0); //UNDERSTOOD

}