ESP32E BlueTooth SPP

ESP32E_BTSPP_Serial0ToSerialBT_230305.ino

BluetoothSerial SerialBT;
uint64_t chipid;
char chipname[256];
void setup() {
   Serial.begin(115200);
  chipid = ESP.getEfuseMac();
  sprintf( chipname, "ESP32EA0_%04X", (uint16_t)(chipid >> 32));
  SerialBT.begin(chipname);
  Serial.print("BT chipname:");
  Serial.println(chipname);
}

void loop() {
   if(Serial.available()>0)
          {        
                  char cdata= Serial.read();
                  SerialBT.print(cdata);
                  //Serial.print(cdata);      
          }
  if (SerialBT.available()) {
     char rdata=SerialBT.read();
    Serial.print(rdata);
    //Serial.print(rdata);
  }
  //delay(20);
}