B4R Question Password in Bluetooth for ESP32

[Gerardo Tenreiro]

Good again
In an ESP32 application I need to have a password for the Bluetooth connection so that when a device tries to connect to the ESP32 it is necessary to enter a password before pairing the device and the ESP32

The Bluetooth is the classic normal bt.

I am using the rESP32Bluetooth library version 1.00

Can you help me?

Thank you so much

 

[peacemaker]

IMHO, passwords it's the security task for the user, that can allow data exchange between some device and his device by the pairing.

 

[Gerardo Tenreiro]

Yes, but it is the user who wants to have a password on their ESP32 so that only they can pair the ESP32.
It is an ESP32 that is visible to many people and wants to have that password
What I don't see is the option from B4R to tell the ESP32 to have this option.
Any option?

 

[hatzisn]

Searching on the internet:

ESP32 classic Bluetooth set password

I am using the ESP32 classic Bluetooth feature for data transfer. I am using the SerialToSerialBT example. I am able to scan and discover the Bluetooth device from my smartphone, but the pairing is

electronics.stackexchange.com

 

[hatzisn]

Also then you can use in-line C:

Private Sub AppStart
    Serial1.Initialize(115200)
    Log("AppStart")
    If wifi.Connect2("SSID", "PASS") = True Then
        Log("Connected")
        RunNative("initiate", Null)
        AddLooper("letsaddtolooper")
    Else
        Log("Failed to connect")
    End If

End Sub

Private Sub letsaddtolooper
    RunNative("addaslooper", Null)
End Sub



#if C

//Example code that works fine with v1.0.1 and can't connect with v2 (v2.0.2 and latest):
#include "BluetoothSerial.h"
BluetoothSerial SerialBT;

uint8_t address[6] = { 0x20, 0x13, 0x01, 0x18, 0x02, 0x26 };
const char *pin = "1234";
bool connected;

void initiate(B4R::Object* o) {
  SerialBT.begin("ESPBT", true);
  SerialBT.setPin(pin);
  Serial.println("The device started in master mode, make sure remote BT device is on!");
 
  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.");
    }
  }
}

void addaslooper(B4R::Object* o) {

  if (SerialBT.available()) {
    Serial.write(SerialBT.read());
  }
  delay(5);
}

#End if

 

[Gerardo Tenreiro]

Hello
Thanks for the help but it gives me the following error
I would also need to be able to know from B4R when the Bluetooth is connected and disconnected.

 

[hatzisn]

Hello
Thanks for the help but it gives me the following error
I would also need to be able to know from B4R when the Bluetooth is connected and disconnected.

View attachment 147929

You will have to downgrade to 1.0.1. Read carefully post #4.

 

[peacemaker]

inititiate

 

[peacemaker]

arduino-esp32/libraries/BluetoothSerial/src/BluetoothSerial.cpp at 855f5261913c74e9f4f99fc0de184c847cc4db59 · espressif/arduino-esp32

Arduino core for the ESP32. Contribute to espressif/arduino-esp32 development by creating an account on GitHub.

github.com

static bool btSetPin() {

 

[hatzisn]

hatzisn said:
inititiate

Corrected.