Prvni ulozeni z chegewara githubu

libraries/BluetoothSerial/examples/SerialToSerialBTM/SerialToSerialBTM.ino

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+//This example code is in the Public Domain (or CC0 licensed, at your option.)
+//By Victor Tchistiak - 2019
+//
+//This example demostrates master mode bluetooth connection and pin 
+//it creates a bridge between Serial and Classical Bluetooth (SPP)
+//this is an extention of the SerialToSerialBT example by Evandro Copercini - 2018
+//
+
+#include "BluetoothSerial.h"
+
+#if !defined(CONFIG_BT_SPP_ENABLED)
+#error Serial Bluetooth not available or not enabled. It is only available for the ESP32 chip.
+#endif
+
+BluetoothSerial SerialBT;
+
+String MACadd = "AA:BB:CC:11:22:33";
+uint8_t address[6]  = {0xAA, 0xBB, 0xCC, 0x11, 0x22, 0x33};
+//uint8_t address[6]  = {0x00, 0x1D, 0xA5, 0x02, 0xC3, 0x22};
+String name = "OBDII";
+const char *pin = "1234"; //<- standard pin would be provided by default
+bool connected;
+
+void setup() {
+  Serial.begin(115200);
+  //SerialBT.setPin(pin);
+  SerialBT.begin("ESP32test", true); 
+  //SerialBT.setPin(pin);
+  Serial.println("The device started in master mode, make sure remote BT device is on!");
+  
+  // connect(address) is fast (upto 10 secs max), connect(name) is slow (upto 30 secs max) as it needs
+  // to resolve name to address first, but it allows to connect to different devices with the same name.
+  // Set CoreDebugLevel to Info to view devices bluetooth address and device names
+  connected = SerialBT.connect(name);
+  //connected = SerialBT.connect(address);
+  
+  if(connected) {
+    Serial.println("Connected Succesfully!");
+  } else {
+    while(!SerialBT.connected(10000)) {
+      Serial.println("Failed to connect. Make sure remote device is available and in range, then restart app."); 
+    }
+  }
+  // disconnect() may take upto 10 secs max
+  if (SerialBT.disconnect()) {
+    Serial.println("Disconnected Succesfully!");
+  }
+  // this would reconnect to the name(will use address, if resolved) or address used with connect(name/address).
+  SerialBT.connect();
+}
+
+void loop() {
+  if (Serial.available()) {
+    SerialBT.write(Serial.read());
+  }
+  if (SerialBT.available()) {
+    Serial.write(SerialBT.read());
+  }
+  delay(20);
+}