espressif / arduino-esp32

Arduino core for the ESP32

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NimBLE does not work with Arduino Nano ESP32

ednieuw opened this issue · comments

Board

Arduino Nano ESP32

Device Description

The NimBLE library 1.4.2 works with de ESP32-C3-DEV and ESP32-S3-DEV boards

Hardware Configuration

No

Version

v3.0.1

IDE Name

Arduino IDE 1.0 and 2.0

Operating System

Windows 11

Flash frequency

NB Arduino settings in board

PSRAM enabled

yes

Upload speed

NB Arduino setting in board

Description

The NIMBLE library was updated to 1.4.2 to have the ESP32-S3 and C3 boards working in ESP32 3.0.
This new library version works well with these boards.

It also works well with the Arduino Nano ESP32 with the Arduino board, still using with ESP32 core 2.0.13

When I choose the Arduino Nano ESP32 on core 3.0.1 compilation and upload is without errors and the program starts but crashes without error after the BLE initialisations.

The NIMBLE example "BLE_uart" also crashes

Sketch

/* The NIMBLE example "BLE_uart"
    Video: https://www.youtube.com/watch?v=oCMOYS71NIU
    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
    Ported to Arduino ESP32 by Evandro Copercini

   Create a BLE server that, once we receive a connection, will send periodic notifications.
   The service advertises itself as: 6E400001-B5A3-F393-E0A9-E50E24DCCA9E
   Has a characteristic of: 6E400002-B5A3-F393-E0A9-E50E24DCCA9E - used for receiving data with "WRITE" 
   Has a characteristic of: 6E400003-B5A3-F393-E0A9-E50E24DCCA9E - used to send data with  "NOTIFY"

   The design of creating the BLE server is:
   1. Create a BLE Server
   2. Create a BLE Service
   3. Create a BLE Characteristic on the Service
   4. Create a BLE Descriptor on the characteristic
   5. Start the service.
   6. Start advertising.

   In this example rxValue is the data received (only accessible inside that function).
   And txValue is the data to be sent, in this example just a byte incremented every second. 
*/

/** NimBLE differences highlighted in comment blocks **/

/*******original********
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
***********************/
#include <NimBLEDevice.h>

BLEServer *pServer = NULL;
BLECharacteristic * pTxCharacteristic;
bool deviceConnected = false;
bool oldDeviceConnected = false;
uint8_t txValue = 0;

// See the following for generating UUIDs:
// https://www.uuidgenerator.net/

#define SERVICE_UUID           "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID
#define CHARACTERISTIC_UUID_RX "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"
#define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"


/**  None of these are required as they will be handled by the library with defaults. **
 **                       Remove as you see fit for your needs                        */  
class MyServerCallbacks: public BLEServerCallbacks {
    void onConnect(BLEServer* pServer) {
      deviceConnected = true;
    };

    void onDisconnect(BLEServer* pServer) {
      deviceConnected = false;
    }
  /***************** New - Security handled here ********************
  ****** Note: these are the same return values as defaults ********/
    uint32_t onPassKeyRequest(){
      Serial.println("Server PassKeyRequest");
      return 123456; 
    }

    bool onConfirmPIN(uint32_t pass_key){
      Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
      return true; 
    }

    void onAuthenticationComplete(ble_gap_conn_desc desc){
      Serial.println("Starting BLE work!");
    }
  /*******************************************************************/
};

class MyCallbacks: public BLECharacteristicCallbacks {
    void onWrite(BLECharacteristic *pCharacteristic) {
      std::string rxValue = pCharacteristic->getValue();

      if (rxValue.length() > 0) {
        Serial.println("*********");
        Serial.print("Received Value: ");
        for (int i = 0; i < rxValue.length(); i++)
          Serial.print(rxValue[i]);

        Serial.println();
        Serial.println("*********");
      }
    }
};


void setup() {
  Serial.begin(115200);

  // Create the BLE Device
  BLEDevice::init("UART Service");

  // Create the BLE Server
  pServer = BLEDevice::createServer();
  pServer->setCallbacks(new MyServerCallbacks());

  // Create the BLE Service
  BLEService *pService = pServer->createService(SERVICE_UUID);

  // Create a BLE Characteristic
  pTxCharacteristic = pService->createCharacteristic(
                                        CHARACTERISTIC_UUID_TX,
                                    /******* Enum Type NIMBLE_PROPERTY now *******      
                                        BLECharacteristic::PROPERTY_NOTIFY
                                        );
                                    **********************************************/  
                                        NIMBLE_PROPERTY::NOTIFY
                                       );
                                    
  /***************************************************   
   NOTE: DO NOT create a 2902 descriptor 
   it will be created automatically if notifications 
   or indications are enabled on a characteristic.
   
   pCharacteristic->addDescriptor(new BLE2902());
  ****************************************************/                  

  BLECharacteristic * pRxCharacteristic = pService->createCharacteristic(
                                            CHARACTERISTIC_UUID_RX,
                                    /******* Enum Type NIMBLE_PROPERTY now *******       
                                            BLECharacteristic::PROPERTY_WRITE
                                            );
                                    *********************************************/  
                                            NIMBLE_PROPERTY::WRITE
                                            );

  pRxCharacteristic->setCallbacks(new MyCallbacks());

  // Start the service
  pService->start();

  // Start advertising
  pServer->getAdvertising()->start();
  Serial.println("Waiting a client connection to notify...");
}

void loop() {

    if (deviceConnected) {
        pTxCharacteristic->setValue(&txValue, 1);
        pTxCharacteristic->notify();
        txValue++;
        delay(10); // bluetooth stack will go into congestion, if too many packets are sent
    }

    // disconnecting
    if (!deviceConnected && oldDeviceConnected) {
        delay(500); // give the bluetooth stack the chance to get things ready
        pServer->startAdvertising(); // restart advertising
        Serial.println("start advertising");
        oldDeviceConnected = deviceConnected;
    }
    // connecting
    if (deviceConnected && !oldDeviceConnected) {
        // do stuff here on connecting
        oldDeviceConnected = deviceConnected;
    }
}

Debug Message

None to see

Other Steps to Reproduce

The NIMBLE library was updated to 1.4.2 to have the ESP32-S3 and C3 boards working in ESP32 3.0.
This new library version works well with these boards.

It also works well with the Arduino Nano ESP32 with the Arduino board, still using with ESP32 core 2.0.13

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

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

NimBLE is an external library. Please take the issue there.