const int buttonPin = A2;
const int trigPin = A1;
const int echoPin = A0;
const int buzzer = A7;
int buttonState = 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(buttonPin, INPUT);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
buttonState = digitalRead(buttonPin);
if(buttonState==LOW){
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
int duration = pulseIn(echoPin, HIGH);
float dis = duration / 58.0;
Serial.print("Distance en CM: ");
Serial.println(dis);
delay(1000);}
}
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st-nucleo-l031k6
st-nucleo-l031k6