Gilvan Silva
Gilvan Silva

Reputation: 11

Why the BLE Cliente example works on Arduino IDE but dont work on the Vscode PlatformIO

Im a student trying to read the temperature on a generic BLE Beacon using a ESP32-WROOM-32U. When i use the BLE client example on the Arduino IDE Version 1.8.19 using the native lib "ESP32 BLE Arduino" it works well, read the temp, all ok.

But when i upload the exactly same code using VsCode 1.69.1 and the same lib "ESP32 BLE Arduino" Version 2.0.0, compile and upload, but when it run, i get this error:

  Forming a connection to d4:b4:96:29:d5:b0
     - Created client
     - Connected to server
    
    Guru Meditation Error: Core  0 panic'ed (Unhandled debug exception). 
    Debug exception reason: Stack canary watchpoint triggered (BTU_TASK)
    Core  0 register dump:
    PC      : 0x40094f33  PS      : 0x00060b36  A0      : 0x80096c48  A1      : 0x3ffd0310
    A2      : 0x3ffb6c34  A3      : 0xb33fffff  A4      : 0x0000abab  A5      : 0x00060b23
    A6      : 0x00060b23  A7      : 0x0000cdcd  A8      : 0x0000cdcd  A9      : 0xffffffff  
    A10     : 0x00000000  A11     : 0x00000000  A12     : 0x00000008  A13     : 0x00000008  
    A14     : 0x007b6c34  A15     : 0x003fffff  SAR     : 0x0000001a  EXCCAUSE: 0x00000001
    EXCVADDR: 0x00000000  LBEG    : 0x4008fd48  LEND    : 0x4008fd5e  LCOUNT  : 0x00000000
    
    
    Backtrace:0x40094f30:0x3ffd03100x40096c45:0x3ffd0350 0x40096c6f:0x3ffd0370 0x40096ebc:0x3ffd0390 0x400834c6:0x3ffd03b0 0x400834d9:0x3ffd03e0 0x40083509:0x3ffd0400 0x40097305:0x3ffd0420 0x40097320:0x3ffd0440 0x401125c1:0x3ffd0460 0x40111d95:0x3ffd0480 0x40105149:0x3ffd04a0 0x401040b3:0x3ffd04c0 0x40128c41:0x3ffd04f0 0x40128d8f:0x3ffd0510 0x40128ed2:0x3ffd0530 0x400fbe25:0x3ffd0570 0x400fb295:0x3ffd0800 0x40115612:0x3ffd0820 0x40115750:0x3ffd0860 0x40115afa:0x3ffd0880 0x40115bb9:0x3ffd0b10 0x40115bd7:0x3ffd0b30 0x40115b9f:0x3ffd0b50 0x40115bd7:0x3ffd0b70 0x40115b9f:0x3ffd0b90 0x40115bd7:0x3ffd0bb0 0x40115b9f:0x3ffd0bd0 0x40115bd7:0x3ffd0bf0 0x40115b9f:0x3ffd0c10 0x40115bd7:0x3ffd0c30 0x40115b9f:0x3ffd0c50 0x40115bd7:0x3ffd0c70 0x40115b9f:0x3ffd0c90 0x40115cf6:0x3ffd0cb0 0x40100af1:0x3ffd0cd0 0x400fbe5e:0x3ffd0f70 0x400fc309:0x3ffd1200 0x400fccc1:0x3ffd1260 0x400fdffc:0x3ffd12a0 0x400fe032:0x3ffd12c0 0x40109299:0x3ffd12e0 0x400f9e18:0x3ffd1470 0x40112977:0x3ffd1490
    
    
    
    
    ELF file SHA256: 0000000000000000

    Rebooting...

I understand that in someway my code is making a stackoverflow, i already tried to modify the partition scheme using this https://geekelectronick.com/esp32-customizing-partition-in-platformio/ and reducing the massive use of serial.print but dont work.

I tried some of the tips here https://github.com/nkolban/esp32-snippets/issues/874 but dont work too.

The configuration on platformio.ini:

[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200

Below the code im using:

 /**
     * A BLE client example that is rich in capabilities.
     * There is a lot new capabilities implemented.
     * author unknown
     * updated by chegewara
     */
    #include "arduino.h"
    #include "BLEDevice.h"
    
    
    // The remote service we wish to connect to.
    static BLEUUID serviceUUID("0000AA20");
    // The characteristic of the remote service we are interested in.
    static BLEUUID    charUUID("0000AA21");
       
    String addr = String("d4:b4:96:29:d5:b0");  
    
    static boolean doConnect = false;
    static boolean connected = false;
    static boolean doScan = false;
    static BLERemoteCharacteristic* pRemoteCharacteristic;
    static BLEAdvertisedDevice* myDevice;
    
    static void notifyCallback(
      BLERemoteCharacteristic* pBLERemoteCharacteristic,
      uint8_t* pData,
      size_t length,
      bool isNotify) {
        Serial.print("Notify callback for characteristic ");
        Serial.print(pBLERemoteCharacteristic->getUUID().toString().c_str());
        Serial.print(" of data length ");
        Serial.println(length);
        Serial.print("data: ");
        Serial.println((char*)pData);
    }
    
    class MyClientCallback : public BLEClientCallbacks {
      void onConnect(BLEClient* pclient) {
      }
    
      void onDisconnect(BLEClient* pclient) {
        connected = false;
        Serial.println("onDisconnect");
      }
    };
    
    bool connectToServer() {
        Serial.print("Forming a connection to ");
        Serial.println(myDevice->getAddress().toString().c_str());
        
        BLEClient*  pClient  = BLEDevice::createClient();
        Serial.println(" - Created client");
    
        pClient->setClientCallbacks(new MyClientCallback());
    
        // Connect to the remove BLE Server.
        pClient->connect(myDevice);  // if you pass BLEAdvertisedDevice instead of address, it will be recognized type of peer device address (public or private)
        Serial.println(" - Connected to server");
        
    
        // Obtain a reference to the service we are after in the remote BLE server.
        BLERemoteService* pRemoteService = pClient->getService(serviceUUID);
        if (pRemoteService == nullptr) {
          Serial.print("Failed to find our service UUID: ");
          Serial.println(serviceUUID.toString().c_str());
          pClient->disconnect();
          return false;
        }
        Serial.println(" - Found our service");
    
    
        // Obtain a reference to the characteristic in the service of the remote BLE server.
        pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID);
        if (pRemoteCharacteristic == nullptr) {
          Serial.print("Failed to find our characteristic UUID: ");
          Serial.println(charUUID.toString().c_str());
          pClient->disconnect();
          return false;
        }
        Serial.println(" - Found our characteristic");
    
        // Read the value of the characteristic.
        if(pRemoteCharacteristic->canRead()) {
          std::string value = pRemoteCharacteristic->readValue();
          Serial.print("The characteristic value was: ");
          Serial.println(value.c_str());
        }
    
        if(pRemoteCharacteristic->canNotify())
          pRemoteCharacteristic->registerForNotify(notifyCallback);
    
        connected = true;
        return true;
    }
    /**
     * Scan for BLE servers and find the first one that advertises the service we are looking for.
     */
    class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
     /**
       * Called for each advertising BLE server.
       */
      void onResult(BLEAdvertisedDevice advertisedDevice) {
        Serial.print("BLE Advertised Device found: ");
        Serial.println(advertisedDevice.toString().c_str());
      String result = advertisedDevice.getAddress().toString().c_str();
    
        // We have found a device, let us now see if it contains the service we are looking for.
        if (advertisedDevice.haveServiceUUID() && advertisedDevice.isAdvertisingService(serviceUUID) && result.compareTo(addr)==0) {
          BLEDevice::getScan()->stop();
          myDevice = new BLEAdvertisedDevice(advertisedDevice);
          doConnect = true;
          doScan = true;
    
        } // Found our server
      } // onResult
    }; // MyAdvertisedDeviceCallbacks
    
    
    void setup() {
      Serial.begin(115200);
      Serial.println("Starting Arduino BLE Client application...");
      BLEDevice::init("");
    
      // Retrieve a Scanner and set the callback we want to use to be informed when we
      // have detected a new device.  Specify that we want active scanning and start the
      // scan to run for 5 seconds.
      BLEScan* pBLEScan = BLEDevice::getScan();
      pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
      pBLEScan->setInterval(1349);
      pBLEScan->setWindow(449);
      pBLEScan->setActiveScan(true);
      pBLEScan->start(60, false);
    } // End of setup.
    
    
    // This is the Arduino main loop function.
    void loop() {
    
      // If the flag "doConnect" is true then we have scanned for and found the desired
      // BLE Server with which we wish to connect.  Now we connect to it.  Once we are 
      // connected we set the connected flag to be true.
      if (doConnect == true) {
        if (connectToServer()) {
          Serial.println("We are now connected to the BLE Server.");
        } else {
          Serial.println("We have failed to connect to the server; there is nothin more we will do.");
        }
        doConnect = false;
      }
    
      // If we are connected to a peer BLE Server, update the characteristic each time we are reached
      // with the current time since boot.
      if (connected) {
        String newValue = "Canopus: " + String(millis()/1000);
        pRemoteCharacteristic->writeValue(newValue.c_str(), newValue.length());
        Serial.print("\r\n - Result sensor");
        std::string value = pRemoteCharacteristic->readValue(); 
        Serial.printf("\r\nLength : %d\r\n", value.length()); 
        Serial.print(" 0x"); Serial.print((uint8_t)value[0], HEX); 
        Serial.print(" 0x"); Serial.print((uint8_t)value[1], HEX);
        Serial.print(" 0x"); Serial.print((uint8_t)value[2], HEX);
        Serial.print(" 0x"); Serial.print((uint8_t)value[3], HEX);
        Serial.print(" 0x"); Serial.print((uint8_t)value[4], HEX);
        Serial.print(" 0x"); Serial.print((uint8_t)value[5], HEX);
    
        float temp = value[1]*100+value[2];
        if(value[1]==1)
        {
          temp=temp*-1;
        }
        Serial.printf("\r\nTemp: %.02f*C", temp/100); 
        float humi = value[4]*100+value[5];
        Serial.printf("\r\nHumi: %.02f/%", humi/100); 
                      
      }else if(doScan){
        BLEDevice::getScan()->start(0);  // this is just example to start scan after disconnect, most likely there is better way to do it in arduino
      }
      
      delay(10); // Delay a second between loops.
    } // End of loop

Upvotes: 1

Views: 901

Answers (1)

Gilvan Silva
Gilvan Silva

Reputation: 11

The configuration on platformio.ini:

platform = espressif32

Then instead of writing this, write

platform = [email protected] and reupload.

Otherwise with the more recent versions you get a 2.x core. (Releases · platformio/platform-espressif32 · GitHub)

Upvotes: 0

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