BLE abort when getCharacteristic

[FynnHR]

Hardware:

Board: ESP32 Dev Module Core Installation/update date: 2018-08-01 IDE name: Arduino IDE Flash Frequency: 40Mhz Upload Speed: 115200

Description:

Im using the "BLE_client_numeric_confirmation.ino" to connect to a BLE device using a six digit pin. The connection can be established, but as soon as the code runs pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID); the ESP32 reboots.

Sketch:

#include "BLEDevice.h"
//#include "BLEScan.h"

// The remote service we wish to connect to.
static BLEUUID serviceUUID("6e400001-c352-11e5-953d-0002a5d5c51b");
// The characteristic of the remote service we are interested in.
static BLEUUID    charUUID("6e400001-c352-11e5-953d-0002a5d5c51b");

static BLEAddress *pServerAddress;
static boolean doConnect = false;
static boolean connected = false;
static BLERemoteCharacteristic* pRemoteCharacteristic;

class MySecurity : public BLESecurityCallbacks {

  uint32_t onPassKeyRequest(){
    return 123123;
  }
  void onPassKeyNotify(uint32_t pass_key){
        ESP_LOGE(LOG_TAG, "The passkey Notify number:%d", pass_key);
  }
  bool onConfirmPIN(uint32_t pass_key){
        ESP_LOGI(LOG_TAG, "The passkey YES/NO number:%d", pass_key);
      vTaskDelay(5000);
    return true;
  }
  bool onSecurityRequest(){
    ESP_LOGI(LOG_TAG, "Security Request");
    return true;
  }
  void onAuthenticationComplete(esp_ble_auth_cmpl_t auth_cmpl){
    if(auth_cmpl.success){
      ESP_LOGI(LOG_TAG, "remote BD_ADDR:");
    //  esp_log_buffer_hex(LOG_TAG, auth_cmpl.bd_addr, sizeof(auth_cmpl.bd_addr));
      ESP_LOGI(LOG_TAG, "address type = %d", auth_cmpl.addr_type);
    }
        ESP_LOGI(LOG_TAG, "pair status = %s", auth_cmpl.success ? "success" : "fail");
  }
};

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);
}

bool connectToServer(BLEAddress pAddress) {
    Serial.print("Forming a connection to ");
    Serial.println(pAddress.toString().c_str());

    BLEDevice::setEncryptionLevel(ESP_BLE_SEC_ENCRYPT);
    BLEDevice::setSecurityCallbacks(new MySecurity());

  BLESecurity *pSecurity = new BLESecurity();
  pSecurity->setKeySize();
  pSecurity->setAuthenticationMode(ESP_LE_AUTH_REQ_SC_ONLY);
  pSecurity->setCapability(ESP_IO_CAP_IO);
  pSecurity->setRespEncryptionKey(ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK);
  BLEClient*  pClient  = BLEDevice::createClient();
    Serial.println(" - Created client");

    // Connect to the remove BLE Server.
    pClient->connect(pAddress);
    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());
      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());
      return false;
    }
    Serial.println(" - Found our characteristic");

    // Read the value of the characteristic.
    std::string value = pRemoteCharacteristic->readValue();
    Serial.print("The characteristic value was: ");
    Serial.println(value.c_str());

    pRemoteCharacteristic->registerForNotify(notifyCallback);
}
/**
 * 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());

    // We have found a device, let us now see if it contains the service we are looking for.
    if (advertisedDevice.haveServiceUUID() && advertisedDevice.getServiceUUID().equals(serviceUUID)) {

      // 
      Serial.print("Found our device!  address: "); 
      advertisedDevice.getScan()->stop();

      pServerAddress = new BLEAddress(advertisedDevice.getAddress());
      doConnect = 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 30 seconds.
  BLEScan* pBLEScan = BLEDevice::getScan();
  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
  pBLEScan->setActiveScan(true);
  pBLEScan->start(30);
} // 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(*pServerAddress)) {
      Serial.println("We are now connected to the BLE Server.");
      connected = true;
    } 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 = "Time since boot: " + String(millis()/1000);
    Serial.println("Setting new characteristic value to \"" + newValue + "\"");

    // Set the characteristic's value to be the array of bytes that is actually a string.
    pRemoteCharacteristic->writeValue(newValue.c_str(), newValue.length());
  }

  delay(1000); // Delay a second between loops.
} // End of loop

Debug Messages:

Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:952
load:0x40078000,len:6084
load:0x40080000,len:7936
entry 0x40080310
Starting Arduino BLE Client application...
[D][BLEScan.cpp:196] start(): >> start(duration=30)
[D][BLEScan.cpp:221] start(): << start()
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
[D][BLEUtils.cpp:1229] dumpGapEvent(): [status: 0]
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_START_COMPLETE_EVT
[D][BLEUtils.cpp:1305] dumpGapEvent(): [status: 0]
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -91, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEAdvertisedDevice.cpp:422] setRSSI(): - setRSSI(): rssi: -91
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x01 (ESP_BLE_AD_TYPE_FLAG), length: 1, data: 1a
BLE Advertised Device found: Name: , Address: 56:3a:48:91:89:e8
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -91, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEScan.cpp:105] handleGAPEvent(): Ignoring 56:3a:48:91:89:e8, already seen it.
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -91, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEScan.cpp:105] handleGAPEvent(): Ignoring 56:3a:48:91:89:e8, already seen it.
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -88, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEScan.cpp:105] handleGAPEvent(): Ignoring 56:3a:48:91:89:e8, already seen it.
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -91, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEScan.cpp:105] handleGAPEvent(): Ignoring 56:3a:48:91:89:e8, already seen it.
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:70, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -77, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEAdvertisedDevice.cpp:422] setRSSI(): - setRSSI(): rssi: -77
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x01 (ESP_BLE_AD_TYPE_FLAG), length: 1, data: 06
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x07 (ESP_BLE_AD_TYPE_128SRV_CMPL), length: 16, data: 1bc5d5a502003d95e51152c30100406e
[D][BLEAdvertisedDevice.cpp:451] setServiceUUID(): - addServiceUUID(): serviceUUID: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x09 (ESP_BLE_AD_TYPE_NAME_CMPL), length: 8, data: 412d304135433730
[D][BLEAdvertisedDevice.cpp:411] setName(): - setName(): name: A-0A5C70
BLE Advertised Device found: Name: A-0A, Address: 00:18:da:0a:5c:70, serviceUUID: 6e400001-c352-11e5-953d-0002a5d5c51b
Found our device!  address: [D][BLEScan.cpp:244] stop(): >> stop()
[D][BLEScan.cpp:257] stop(): << stop()
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 56:3a:48:91:89:e8, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_RANDOM, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -92, ble_adv: ??, flag: 26 ([LE General Discoverable Mode] [Simultaneous LE and BR/EDR to Same Device Capable (Controller)] [Simultaneous LE and BR/EDR to Same Device Capable (Host)] ), num_resps: 1, adv_data_len: 3, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:70, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -76, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:70, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -82, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT
[D][BLEUtils.cpp:1317] dumpGapEvent(): [status: 0]
Forming a connection to 00:18:da:0a:5c:70
[D][BLEDevice.cpp:54] createClient(): >> createClient
[D][BLEDevice.cpp:60] createClient(): << createClient
 - Created client
[D][BLEClient.cpp:91] connect(): >> connect(00:18:da:0a:5c:70)
[D][BLEClient.cpp:74] clearServices(): >> clearServices
[D][BLEClient.cpp:81] clearServices(): << clearServices
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_REG_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_REG_EVT
[D][BLEUtils.cpp:1550] dumpGattClientEvent(): [status: ESP_GATT_OK, app_id: 0x0]
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_CONNECT_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_CONNECT_EVT
[D][BLEUtils.cpp:1407] dumpGattClientEvent(): [conn_id: 0, remote_bda: 00:18:da:0a:5c:70]
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_OPEN_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_OPEN_EVT
[D][BLEUtils.cpp:1503] dumpGattClientEvent(): [status: ESP_GATT_OK, conn_id: 0, remote_bda: 00:18:da:0a:5c:70, mtu: 23]
[D][BLEClient.cpp:123] connect(): << connect(), rc=1
 - Connected to server
[D][BLEClient.cpp:322] getService(): >> getService: uuid: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLEClient.cpp:358] getServices(): >> getServices
[D][BLEClient.cpp:74] clearServices(): >> clearServices
[D][BLEClient.cpp:81] clearServices(): << clearServices
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_AUTH_CMPL_EVT
[D][BLEUtils.cpp:1160] dumpGapEvent(): [bd_addr: 00:18:da:0a:5c:70, key_present: 0, key: ***, key_type: 0, success: 1, fail_reason: 0, addr_type: ***, dev_type: ESP_BT_DEVICE_TYPE_BLE]
[I][BLEDevice.cpp:250] gapEventHandler(): ESP_GAP_BLE_AUTH_CMPL_EVT
[I][Comworking.ino:33] onAuthenticationComplete(): remote BD_ADDR:
[I][Comworking.ino:35] onAuthenticationComplete(): address type = 0
[I][Comworking.ino:37] onAuthenticationComplete(): pair status = success
[D][BLEClient.cpp:402] handleGAPEvent(): BLEClient ... handling GAP event!
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 1 0x01, end_handle: 9 0x09, srvc_id: uuid: 00001800-0000-1000-8000-00805f9b34fb, inst_id: 1
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 10 0x0a, end_handle: 10 0x0a, srvc_id: uuid: 00001801-0000-1000-8000-00805f9b34fb, inst_id: 10
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 11 0x0b, end_handle: 65535 0xffff, srvc_id: uuid: 6e400001-c352-11e5-953d-0002a5d5c51b, inst_id: 11
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_CMPL_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_CMPL_EVT
[D][BLEUtils.cpp:1581] dumpGattClientEvent(): [status: ESP_GATT_OK, conn_id: 0]
[D][BLEClient.cpp:374] getServices(): << getServices
[D][BLEClient.cpp:335] getService(): << getService: found the service with uuid: 6e400001-c352-11e5-953d-0002a5d5c51b
 - Found our service
[D][BLERemoteService.cpp:167] retrieveCharacteristics(): >> getCharacteristics() for service: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteService.cpp:198] retrieveCharacteristics(): Found a characteristic: Handle: 13, UUID: 6e400002-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:41] BLERemoteCharacteristic(): >> BLERemoteCharacteristic: handle: 13 0x13, uuid: 6e400002-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:284] retrieveDescriptors(): >> retrieveDescriptors() for characteristic: 6e400002-c352-11e5-953d-0002a5d5c51b
[E][BLERemoteCharacteristic.cpp:308] retrieveDescriptors(): esp_ble_gattc_get_all_descr: ESP_GATT_NOT_FOUND
[D][BLERemoteCharacteristic.cpp:330] retrieveDescriptors(): << retrieveDescriptors(): Found 0 descriptors.
[D][BLERemoteCharacteristic.cpp:49] BLERemoteCharacteristic(): << BLERemoteCharacteristic
[D][BLERemoteService.cpp:198] retrieveCharacteristics(): Found a characteristic: Handle: 15, UUID: 6e400003-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:41] BLERemoteCharacteristic(): >> BLERemoteCharacteristic: handle: 15 0x15, uuid: 6e400003-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:284] retrieveDescriptors(): >> retrieveDescriptors() for characteristic: 6e400003-c352-11e5-953d-0002a5d5c51b
[E][BLERemoteCharacteristic.cpp:315] retrieveDescriptors(): 
[D][BLERemoteCharacteristic.cpp:316] retrieveDescriptors(): Found a descriptor: Handle: 16, UUID: 00002902-0000-1000-8000-00805f9b34fb
[D][BLERemoteCharacteristic.cpp:330] retrieveDescriptors(): << retrieveDescriptors(): Found 1 descriptors.
[D][BLERemoteCharacteristic.cpp:49] BLERemoteCharacteristic(): << BLERemoteCharacteristic
[D][BLERemoteService.cpp:214] retrieveCharacteristics(): << getCharacteristics()
abort() was called at PC 0x40184f4f on core 1

Backtrace: 0x40090c38:0x3ffd5a00 0x40090e3b:0x3ffd5a20 0x40184f4f:0x3ffd5a40 0x40184f96:0x3ffd5a60 0x4017287b:0x3ffd5a80 0x400d621d:0x3ffd5aa0 0x400d200b:0x3ffd5b00 0x400d2216:0x3ffd5b50 0x4018cb0c:0x3ffd5bb0

Rebooting..

[chegewara]

Are you sure you have service and characteristic with the same UUID:

// The remote service we wish to connect to.
static BLEUUID serviceUUID("6e400001-c352-11e5-953d-0002a5d5c51b");
// The characteristic of the remote service we are interested in.
static BLEUUID    charUUID("6e400001-c352-11e5-953d-0002a5d5c51b");

[skyng22003]

@Caramba11 How did you get the debug system messages above?

I think my problem is similar to yours but my system messages look slightly different

Forming a connection to f5:e1:02:80:05:f4

• Created client D (1794) FreeRTOS: Semaphore taking: name: RegEvt (0x3ffe86a0), owner: <N/A> for connect D (1802) FreeRTOS: Semaphore taken: name: RegEvt (0x3ffe86a0), owner: connect V (1809) FreeRTOS: >> wait: Semaphore waiting: name: RegEvt (0x3ffe86a0), owner: connect for connect V (1810) FreeRTOS: Semaphore giving: name: RegEvt (0x3ffe86a0), owner: connect V (1825) FreeRTOS: << wait: Semaphore released: name: RegEvt (0x3ffe86a0), owner: connect D (1833) FreeRTOS: Semaphore taking: name: OpenEvt (0x3ffe8288), owner: <N/A> for connect D (1841) FreeRTOS: Semaphore taken: name: OpenEvt (0x3ffe8288), owner: connect V (1848) FreeRTOS: >> wait: Semaphore waiting: name: OpenEvt (0x3ffe8288), owner: connect for connect V (1899) FreeRTOS: Semaphore giving: name: OpenEvt (0x3ffe8288), owner: connect V (1900) FreeRTOS: << wait: Semaphore released: name: OpenEvt (0x3ffe8288), owner: connect
• Connected to server D (1906) FreeRTOS: Semaphore taking: name: SearchCmplEvt (0x3ffe82e8), owner: <N/A> for getServices D (1915) FreeRTOS: Semaphore taken: name: SearchCmplEvt (0x3ffe82e8), owner: getServices V (1922) FreeRTOS: >> wait: Semaphore waiting: name: SearchCmplEvt (0x3ffe82e8), owner: getServices for getServices V (1938) FreeRTOS: Semaphore giving: name: RssiCmplEvt (0x3ffe7e9c), owner: <N/A> V (1940) FreeRTOS: Semaphore giving: name: SearchCmplEvt (0x3ffe82e8), owner: getServices V (1948) FreeRTOS: << wait: Semaphore released: name: SearchCmplEvt (0x3ffe82e8), owner: getServices abort() was called at PC 0x401813d7 on core 1

I suspect that the authentication did not go through correctly, as by changing the passkey in the code below doesn't change the output of the system messages, ie it still manages to connect to the server even when the passkey is wrong.

uint32_t onPassKeyRequest(){ return 123123; }

[FynnHR]

Sorry for the late reply first. @chegewara The issue was caused by the identical UUIDs (argh). But now the same code (just put the right UUIDs in) is not connecting to the device anymore, I will attache the new debung output.

@skyng22003 I got these messages by switching the debug level to Verbose.

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:952
load:0x40078000,len:6084
load:0x40080000,len:7936
entry 0x40080310
Starting Arduino BLE Client application...
[D][BLEScan.cpp:196] start(): >> start(duration=30)
[D][BLEScan.cpp:221] start(): << start()
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
[D][BLEUtils.cpp:1229] dumpGapEvent(): [status: 0]
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_START_COMPLETE_EVT
[D][BLEUtils.cpp:1305] dumpGapEvent(): [status: 0]
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:74, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -71, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEAdvertisedDevice.cpp:422] setRSSI(): - setRSSI(): rssi: -71
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x01 (ESP_BLE_AD_TYPE_FLAG), length: 1, data: 06
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x07 (ESP_BLE_AD_TYPE_128SRV_CMPL), length: 16, data: 1bc5d5a502003d95e51152c30100406e
[D][BLEAdvertisedDevice.cpp:451] setServiceUUID(): - addServiceUUID(): serviceUUID: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLEAdvertisedDevice.cpp:251] parseAdvertisement(): Type: 0x09 (ESP_BLE_AD_TYPE_NAME_CMPL), length: 8, data: 412d304135433734
[D][BLEAdvertisedDevice.cpp:411] setName(): - setName(): name: A-0A5C74
BLE Advertised Device found: Name: A-0A5C74, Address: 00:18:da:0a:5c:74, serviceUUID: 6e400001-c352-11e5-953d-0002a5d5c51b
Found our device!  address: [D][BLEScan.cpp:244] stop(): >> stop()
[D][BLEScan.cpp:257] stop(): << stop()
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:74, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -70, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:74, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -68, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:74, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -68, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RESULT_EVT
[D][BLEUtils.cpp:1265] dumpGapEvent(): search_evt: ESP_GAP_SEARCH_INQ_RES_EVT, bda: 00:18:da:0a:5c:74, dev_type: ESP_BT_DEVICE_TYPE_BLE, ble_addr_type: BLE_ADDR_TYPE_PUBLIC, ble_evt_type: ESP_BLE_EVT_CONN_ADV, rssi: -65, ble_adv: ??, flag: 6 ([LE General Discoverable Mode] [BR/EDR Not Supported] ), num_resps: 1, adv_data_len: 31, scan_rsp_len: 0
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT
[D][BLEUtils.cpp:1317] dumpGapEvent(): [status: 0]
Forming a connection to 00:18:da:0a:5c:74
[D][BLEDevice.cpp:54] createClient(): >> createClient
[D][BLEDevice.cpp:60] createClient(): << createClient
 - Created client
[D][BLEClient.cpp:91] connect(): >> connect(00:18:da:0a:5c:74)
[D][BLEClient.cpp:74] clearServices(): >> clearServices
[D][BLEClient.cpp:81] clearServices(): << clearServices
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_REG_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_REG_EVT
[D][BLEUtils.cpp:1550] dumpGattClientEvent(): [status: ESP_GATT_OK, app_id: 0x0]
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_CONNECT_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_CONNECT_EVT
[D][BLEUtils.cpp:1407] dumpGattClientEvent(): [conn_id: 0, remote_bda: 00:18:da:0a:5c:74]
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_OPEN_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_OPEN_EVT
[D][BLEUtils.cpp:1503] dumpGattClientEvent(): [status: ESP_GATT_OK, conn_id: 0, remote_bda: 00:18:da:0a:5c:74, mtu: 23]
[D][BLEClient.cpp:123] connect(): << connect(), rc=1
 - Connected to server
[D][BLEClient.cpp:322] getService(): >> getService: uuid: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLEClient.cpp:358] getServices(): >> getServices
[D][BLEClient.cpp:74] clearServices(): >> clearServices
[D][BLEClient.cpp:81] clearServices(): << clearServices
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_AUTH_CMPL_EVT
[D][BLEUtils.cpp:1160] dumpGapEvent(): [bd_addr: 00:18:da:0a:5c:74, key_present: 0, key: ***, key_type: 0, success: 1, fail_reason: 0, addr_type: ***, dev_type: ESP_BT_DEVICE_TYPE_BLE]
[I][BLEDevice.cpp:250] gapEventHandler(): ESP_GAP_BLE_AUTH_CMPL_EVT
[I][sketch_aug10a.ino:33] onAuthenticationComplete(): remote BD_ADDR:
[I][sketch_aug10a.ino:35] onAuthenticationComplete(): address type = 0
[I][sketch_aug10a.ino:37] onAuthenticationComplete(): pair status = success
[D][BLEClient.cpp:402] handleGAPEvent(): BLEClient ... handling GAP event!
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 1 0x01, end_handle: 9 0x09, srvc_id: uuid: 00001800-0000-1000-8000-00805f9b34fb, inst_id: 1
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 10 0x0a, end_handle: 10 0x0a, srvc_id: uuid: 00001801-0000-1000-8000-00805f9b34fb, inst_id: 10
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_RES_EVT
[D][BLEUtils.cpp:1602] dumpGattClientEvent(): [conn_id: 0, start_handle: 11 0x0b, end_handle: 65535 0xffff, srvc_id: uuid: 6e400001-c352-11e5-953d-0002a5d5c51b, inst_id: 11
[D][BLERemoteService.cpp:29] BLERemoteService(): >> BLERemoteService()
[D][BLERemoteService.cpp:37] BLERemoteService(): << BLERemoteService()
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_SEARCH_CMPL_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_SEARCH_CMPL_EVT
[D][BLEUtils.cpp:1581] dumpGattClientEvent(): [status: ESP_GATT_OK, conn_id: 0]
[D][BLEClient.cpp:374] getServices(): << getServices
[D][BLEClient.cpp:335] getService(): << getService: found the service with uuid: 6e400001-c352-11e5-953d-0002a5d5c51b
 - Found our service
[D][BLERemoteService.cpp:167] retrieveCharacteristics(): >> getCharacteristics() for service: 6e400001-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteService.cpp:198] retrieveCharacteristics(): Found a characteristic: Handle: 13, UUID: 6e400002-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:41] BLERemoteCharacteristic(): >> BLERemoteCharacteristic: handle: 13 0x13, uuid: 6e400002-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:284] retrieveDescriptors(): >> retrieveDescriptors() for characteristic: 6e400002-c352-11e5-953d-0002a5d5c51b
[E][BLERemoteCharacteristic.cpp:308] retrieveDescriptors(): esp_ble_gattc_get_all_descr: ESP_GATT_NOT_FOUND
[D][BLERemoteCharacteristic.cpp:330] retrieveDescriptors(): << retrieveDescriptors(): Found 0 descriptors.
[D][BLERemoteCharacteristic.cpp:49] BLERemoteCharacteristic(): << BLERemoteCharacteristic
[D][BLERemoteService.cpp:198] retrieveCharacteristics(): Found a characteristic: Handle: 15, UUID: 6e400003-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:41] BLERemoteCharacteristic(): >> BLERemoteCharacteristic: handle: 15 0x15, uuid: 6e400003-c352-11e5-953d-0002a5d5c51b
[D][BLERemoteCharacteristic.cpp:284] retrieveDescriptors(): >> retrieveDescriptors() for characteristic: 6e400003-c352-11e5-953d-0002a5d5c51b
[E][BLERemoteCharacteristic.cpp:315] retrieveDescriptors(): 
[D][BLERemoteCharacteristic.cpp:316] retrieveDescriptors(): Found a descriptor: Handle: 16, UUID: 00002902-0000-1000-8000-00805f9b34fb
[D][BLERemoteCharacteristic.cpp:330] retrieveDescriptors(): << retrieveDescriptors(): Found 1 descriptors.
[D][BLERemoteCharacteristic.cpp:49] BLERemoteCharacteristic(): << BLERemoteCharacteristic
[D][BLERemoteService.cpp:214] retrieveCharacteristics(): << getCharacteristics()
 - Found our characteristic
[D][BLERemoteCharacteristic.cpp:434] readValue(): >> readValue(): uuid: 6e400002-c352-11e5-953d-0002a5d5c51b, handle: 13 0x0d
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_READ_CHAR_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_READ_CHAR_EVT
[D][BLEUtils.cpp:1527] dumpGattClientEvent(): [status: ESP_GATT_INSUF_AUTHENTICATION, conn_id: 0, handle: 13 0x0d, value_len: 0]
[D][BLERemoteCharacteristic.cpp:462] readValue(): << readValue(): length: 0
The characteristic value was: 
[D][BLERemoteCharacteristic.cpp:479] registerForNotify(): >> registerForNotify(): Characteristic: uuid: 6e400002-c352-11e5-953d-0002a5d5c51b, handle: 13 0xd, props: broadcast: 0, read: 0, write_nr: 1, write: 1, notify: 0, indicate: 0, auth: 0
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_REG_FOR_NOTIFY_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_REG_FOR_NOTIFY_EVT
[D][BLEUtils.cpp:1566] dumpGattClientEvent(): [status: ESP_GATT_OK, handle: 13 0x0d]
[D][BLERemoteCharacteristic.cpp:510] registerForNotify(): << registerForNotify()
We are now connected to the BLE Server.
Setting new characteristic value to "Time since boot: 2"
[D][BLERemoteCharacteristic.cpp:551] writeValue(): >> writeValue(), length: 18
[D][BLEDevice.cpp:143] gattClientEventHandler(): gattClientEventHandler [esp_gatt_if: 4] ... ESP_GATTC_WRITE_CHAR_EVT
[D][BLEUtils.cpp:1377] dumpGattClientEvent(): GATT Event: ESP_GATTC_WRITE_CHAR_EVT
[D][BLEUtils.cpp:1623] dumpGattClientEvent(): [status: ESP_GATT_INSUF_AUTHENTICATION, conn_id: 0, handle: 13 0x0d, offset: 0]
[D][BLERemoteCharacteristic.cpp:579] writeValue(): << writeValue
Setting new characteristic value to "Time since boot: 3"
[D][BLERemoteCharacteristic.cpp:551] writeValue(): >> writeValue(), length: 18

Thanks for your help