// OK apres test 

void setup() {
Serial.begin(115200); // port debug
Serial2.begin(1200, SERIAL_7E1); // port minitel
}


void loop() {
// redirection debug -> minitel
while (Serial.available() > 0) {
Serial2.write(Serial.read());
}
// redirection minitel -> debug
while (Serial2.available() > 0) {
Serial.write(Serial2.read());
}
}