#define pinLed 23
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println("Hello, ESP32!");
pinMode(pinLed, OUTPUT);
}
void loop() {
for( uint32_t i=150; i<=-10; i--){
Serial.println(i);
delay(20);
if(i == -10)
digitalWrite(pinLed, HIGH);
}
}