BluetoothSerial phone can pair but cannot connect

[liangzhichao63]

Board

ESP32 PICO KIT

Device Description

ESP32 PICO KIT

Hardware Configuration

Empty development board

Version

v1.0.6

IDE Name

arduino ide

Operating System

win10

Flash frequency

40Mhz

PSRAM enabled

no

Upload speed

115200

Description

Arduino bluetoothserial code example, you can pair but cannot connect.

Sketch

#include "BluetoothSerial.h"

#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif

BluetoothSerial SerialBT;

void setup() {
  Serial.begin(115200);
  SerialBT.begin("ESP32test"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");
}

void loop() {
  if (Serial.available()) {
    SerialBT.write(Serial.read());
  }
  if (SerialBT.available()) {
    Serial.write(SerialBT.read());
  }
  delay(20);
}

Debug Message

No Debug Message

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[me-no-dev]

have you tried with version 2.0.3?

[liangzhichao63]

Yes, I have. The connection works when using BLE.But the BluetoothSerial was not working properly.

[SuGlider]

@liangzhichao63

I have just made it work correctly with a ESP32-DevKit board and Arduino Core 2.0.3.
Basically, I just paired it in Win11 and then open the Device Manager to see the COM port associated to the Bluetooth Serial connection. Finally I open 2 Putty windows, one for the ESP32-UART and another for the Bluetooth COM port.

When I type in one of the Putty windows, it displays in the other one, as expected.

[SuGlider]

[liangzhichao63]

It may be that the ESP32 PICO D4 chip is not adapted, thank you for helping me verify.

[VojtechBartoska]

@liangzhichao63 Can I consider this as solved?

[VojtechBartoska]

Closing as unable to reproduce, explanation was provided and there were not further questions.