void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial2.begin(115200);
Serial.println("Hello, ESP32!");
}
void loop() {
// put your main code here, to run repeatedly:
while (Serial2.available()) {
Serial.write(Serial2.read());
}
delay(10); // this speeds up the simulation
Serial2.println("Loopback test.");
}