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BT issue: Assert_warn and no serial connection possible, but pairs #5053

@Shane87F3Ng

Description

@Shane87F3Ng

Make your question, not a Statement, inclusive. Include all pertinent information:

----------------------------- Remove above -----------------------------

Hardware:

Board: WEMOS LOLIN D32 PRO V2.0.0
Core Installation version: ?1.0.0? ?1.0.1-rc4? ?1.0.1? ?1.0.1-git? ?1.0.2? ?1.0.3?
IDE name: Arduino IDE?
Flash Frequency: 80Mhz
PSRAM enabled: no
Upload Speed: 115200
Computer OS: Windows 10 + Mac OSX

Description:

I cannot connect to the serial COM-port as soon as i use the 5.1 Bluetooth adapter. I can pair the esp32, but nothing more and the message/warning below occures. If i use a BT4.0 dongle, anything works fine without warning etc. and the connection is stable. Data transfer is possible with BT4.0, but i need to use the new adapter because of multiconnect.

How can is solve this? What does the warning actually mean?

Best regards

Sketch: (leave the backquotes for code formatting)

//Change the code below by your 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 Messages:
[I][BluetoothSerial.cpp:539] _init_bt(): device name set
The device started, now you can pair it with bluetooth!
[I][BluetoothSerial.cpp:228] esp_spp_cb(): ESP_SPP_INIT_EVT
[I][BluetoothSerial.cpp:231] esp_spp_cb(): ESP_SPP_INIT_EVT: slave: start
[I][BluetoothSerial.cpp:315] esp_spp_cb(): ESP_SPP_START_EVT
ASSERT_WARN(103 23), in lc_task.c at line 8775ASSERT_WARN(103 24), in lc_task.c at line 8775

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