#define pushButton_pin   12
#define LED   13

void IRAM_ATTR pushPin1()

{
    // код по прерыванию:
  if (digitalRead(12) == 1) {digitalWrite(LED, 0);}
  if (digitalRead(12) == 0) {digitalWrite(LED, 1);}                                                
}
                                   
 

void setup()
{
  Serial.begin(115200);
  pinMode(LED, OUTPUT);
  pinMode(pushButton_pin, INPUT_PULLUP);
   digitalWrite(LED, 0);
  attachInterrupt(pushButton_pin, pushPin1, CHANGE);
 
} 
void loop()
{
}