hyl392

const int sensorPin = A0;    
const int ledPin = 9;        

int sensorValue = 0;         
int sensorMin = 1023;       
int sensorMax = 0;           

int buzzer = 8;
void setup() {

hyl392

int buttonState = 0;
int led = 9;
int button = 7;
int led2 = 3;

void setup() {
  pinMode(led, OUTPUT);
  pinMode(button, INPUT);
  pinMode(led2, OUTPUT);
  // Serial.begin(9600);