//Solution

const int buttonPin = 32;
const int ledPin =  23;
int buttonState = 0;
int lastMillis = 0;

void IRAM_ATTR fonction_ISR() {
 if(millis() - lastMillis > 10){ // Software debouncing buton
         ets_printf("ISR triggered\n");
         buttonState = !buttonState;
         digitalWrite(ledPin,buttonState);
 }
 lastMillis = millis();
}

void setup() {
 Serial.begin(115200);
 pinMode(buttonPin, INPUT_PULLUP);
 pinMode(ledPin,OUTPUT);
 attachInterrupt(buttonPin, fonction_ISR, CHANGE);
 digitalWrite(ledPin, buttonState);
}

void loop() {
 // Code ...
}