Sync update for 0.4.3 take 2

Author: nkolban

examples/BLE_client/BLE_client.ino

@@ -26,7 +26,7 @@ static void notifyCallback(
     Serial.println(length);
 }
 
-void connectToServer(BLEAddress pAddress) {
+bool connectToServer(BLEAddress pAddress) {
     Serial.print("Forming a connection to ");
     Serial.println(pAddress.toString().c_str());
 
@@ -42,17 +42,19 @@ void connectToServer(BLEAddress pAddress) {
     if (pRemoteService == nullptr) {
       Serial.print("Failed to find our service UUID: ");
       Serial.println(serviceUUID.toString().c_str());
-      return;
+      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;
+      return false;
     }
+    Serial.println(" - Found our characteristic");
 
     // Read the value of the characteristic.
     std::string value = pRemoteCharacteristic->readValue();
@@ -109,9 +111,13 @@ void loop() {
   // 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) {
-    connectToServer(*pServerAddress);
+    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;
-    connected = true;
   }
 
   // If we are connected to a peer BLE Server, update the characteristic each time we are reached

examples/BLE_notify/BLE_notify.ino

@@ -1,6 +1,6 @@
 /*
     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/BLETests/SampleNotify.cpp
+    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.

examples/BLE_scan/BLE_scan.ino

@@ -1,5 +1,5 @@
 /*
-   Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLETests/SampleScan.cpp
+   Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
    Ported to Arduino ESP32 by Evandro Copercini
 */
 

examples/BLE_server/BLE_server.ino

@@ -1,5 +1,5 @@
 /*
-    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLETests/SampleServer.cpp
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleServer.cpp
     Ported to Arduino ESP32 by Evandro Copercini
 */
 

examples/BLE_uart/BLE_uart.ino

@@ -1,6 +1,6 @@
 /*
     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/BLETests/SampleNotify.cpp
+    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.

examples/BLE_write/BLE_write.ino

@@ -1,5 +1,5 @@
 /*
-    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLETests/SampleWrite.cpp
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleWrite.cpp
     Ported to Arduino ESP32 by Evandro Copercini
 */
 

library.properties

@@ -1,10 +1,10 @@
 name=ESP32 BLE Arduino
-version=0.4.2
+version=0.4.3
 author=Neil Kolban <kolban1@kolban.com>
 maintainer=Neil Kolban <kolban1@kolban.com>
 sentence=BLE functions for ESP32
 paragraph=This library provides an implementation Bluetooth Low Energy support for the ESP32 using the Arduino platform. 
 category=Communication
 url=https://github.com/nkolban/ESP32_BLE_Arduino
 architectures=esp32
-includes=BLEDevice.h, BLEUtils.h, BLEScan.h, BLEAdvertisedDevice.h
+includes=BLE.h, BLEUtils.h, BLEScan.h, BLEAdvertisedDevice.h

src/BLEAdvertisedDevice.cpp

@@ -60,7 +60,7 @@ BLEAddress BLEAdvertisedDevice::getAddress() {
  *
  * @return The appearance of the advertised device.
  */
-uint16_t BLEAdvertisedDevice::getApperance() {
+uint16_t BLEAdvertisedDevice::getAppearance() {
 	return m_appearance;
 }
 
@@ -265,7 +265,7 @@ void BLEAdvertisedDevice::parseAdvertisement(uint8_t* payload) {
 				} // ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE
 
 				default: {
-					ESP_LOGD(LOG_TAG, "Unhandled type");
+					ESP_LOGD(LOG_TAG, "Unhandled type: adType: %d - 0x%.2x", ad_type, ad_type);
 					break;
 				}
 			} // switch
@@ -329,7 +329,7 @@ void BLEAdvertisedDevice::setManufacturerData(std::string manufacturerData) {
 void BLEAdvertisedDevice::setName(std::string name) {
 	m_name     = name;
 	m_haveName = true;
-	ESP_LOGD(LOG_TAG, "- name: %s", m_name.c_str());
+	ESP_LOGD(LOG_TAG, "- setName(): name: %s", m_name.c_str());
 } // setName
 
 
@@ -340,7 +340,7 @@ void BLEAdvertisedDevice::setName(std::string name) {
 void BLEAdvertisedDevice::setRSSI(int rssi) {
 	m_rssi     = rssi;
 	m_haveRSSI = true;
-	ESP_LOGD(LOG_TAG, "- rssi: %d", m_rssi);
+	ESP_LOGD(LOG_TAG, "- setRSSI(): rssi: %d", m_rssi);
 } // setRSSI
 
 
@@ -367,7 +367,7 @@ void BLEAdvertisedDevice::setServiceUUID(const char* serviceUUID) {
 void BLEAdvertisedDevice::setServiceUUID(BLEUUID serviceUUID) {
 	m_serviceUUID     = serviceUUID;
 	m_haveServiceUUID = true;
-	ESP_LOGD(LOG_TAG, "- serviceUUID: %s", serviceUUID.toString().c_str());
+	ESP_LOGD(LOG_TAG, "- setServiceUUID(): serviceUUID: %s", serviceUUID.toString().c_str());
 } // setRSSI
 
 
@@ -390,7 +390,7 @@ std::string BLEAdvertisedDevice::toString() {
 	std::stringstream ss;
 	ss << "Name: " << getName() << ", Address: " << getAddress().toString();
 	if (haveAppearance()) {
-		ss << ", appearance: " << getApperance();
+		ss << ", appearance: " << getAppearance();
 	}
 	if (haveManufacturerData()) {
 		char *pHex = BLEUtils::buildHexData(nullptr, (uint8_t*)getManufacturerData().data(), getManufacturerData().length());

src/BLEAdvertisedDevice.h

@@ -30,7 +30,7 @@ class BLEAdvertisedDevice {
 	BLEAdvertisedDevice();
 
 	BLEAddress  getAddress();
-	uint16_t    getApperance();
+	uint16_t    getAppearance();
 	std::string getManufacturerData();
 	std::string getName();
 	int         getRSSI();

src/BLEAdvertising.cpp

@@ -44,6 +44,24 @@ BLEAdvertising::BLEAdvertising() {
 } // BLEAdvertising
 
 
+/**
+ * @brief Add a service uuid to exposed list of services.
+ * @param [in] serviceUUID The UUID of the service to expose.
+ */
+void BLEAdvertising::addServiceUUID(BLEUUID serviceUUID) {
+	m_serviceUUIDs.push_back(serviceUUID);
+} // addServiceUUID
+
+
+/**
+ * @brief Add a service uuid to exposed list of services.
+ * @param [in] serviceUUID The string representation of the service to expose.
+ */
+void BLEAdvertising::addServiceUUID(const char* serviceUUID) {
+	addServiceUUID(BLEUUID(serviceUUID));
+} // addServiceUUID
+
+
 /**
  * @brief Set the device appearance in the advertising data.
  * The appearance attribute is of type 0x19.  The codes for distinct appearances can be found here:
@@ -56,52 +74,6 @@ void BLEAdvertising::setAppearance(uint16_t appearance) {
 } // setAppearance
 
 
-/**
- * @brief Set the service UUID.
- * We maintain a class member called m_advData (esp_ble_adv_data_t) that is passed to the
- * ESP-IDF advertising functions.  In this method, we see two fields within that structure
- * namely service_uuid_len and p_service_uuid to be the information supplied in the passed
- * in service uuid.
- * @param [in] uuid The UUID of the service.
- * @return N/A.
- */
-void BLEAdvertising::setServiceUUID(const char* serviceUUID) {
-	return setServiceUUID(BLEUUID(serviceUUID)); 
-}
-/**
- * @brief Set the service UUID.
- * We maintain a class member called m_advData (esp_ble_adv_data_t) that is passed to the
- * ESP-IDF advertising functions.  In this method, we see two fields within that structure
- * namely service_uuid_len and p_service_uuid to be the information supplied in the passed
- * in service uuid.
- * @param [in] uuid The UUID of the service.
- * @return N/A.
- */
-void BLEAdvertising::setServiceUUID(BLEUUID serviceUUID) {
-	ESP_LOGD(LOG_TAG, ">> setServiceUUID - %s", serviceUUID.toString().c_str());
-	m_serviceUUID = serviceUUID; // Save the new service UUID
-	esp_bt_uuid_t* espUUID = m_serviceUUID.getNative();
-	switch(espUUID->len) {
-		case ESP_UUID_LEN_16: {
-			m_advData.service_uuid_len = 2;
-			m_advData.p_service_uuid = reinterpret_cast<uint8_t*>(&espUUID->uuid.uuid16);
-			break;
-		}
-		case ESP_UUID_LEN_32: {
-			m_advData.service_uuid_len = 4;
-			m_advData.p_service_uuid = reinterpret_cast<uint8_t*>(&espUUID->uuid.uuid32);
-			break;
-		}
-		case ESP_UUID_LEN_128: {
-			m_advData.service_uuid_len = 16;
-			m_advData.p_service_uuid = reinterpret_cast<uint8_t*>(&espUUID->uuid.uuid128);
-			break;
-		}
-	} // switch
-	ESP_LOGD(LOG_TAG, "<< setServiceUUID");
-} // setServiceUUID
-
-
 /**
  * @brief Start advertising.
  * Start advertising.
@@ -110,24 +82,49 @@ void BLEAdvertising::setServiceUUID(BLEUUID serviceUUID) {
 void BLEAdvertising::start() {
 	ESP_LOGD(LOG_TAG, ">> start");
 
-	if (m_advData.service_uuid_len > 0) {
-		uint8_t hexData[16*2+1];
-		BLEUtils::buildHexData(hexData, m_advData.p_service_uuid, m_advData.service_uuid_len);
-		ESP_LOGD(LOG_TAG, " - Service: service_uuid_len=%d, p_service_uuid=0x%x (data=%s)",
-			m_advData.service_uuid_len,
-			(uint32_t)m_advData.p_service_uuid,
-			(m_advData.service_uuid_len > 0?(char *)hexData:"N/A")
-		);
-	} // We have a service to advertise
+	// We have a vector of service UUIDs that we wish to advertise.  In order to use the
+	// ESP-IDF framework, these must be supplied in a contiguous array of their 128bit (16 byte)
+	// representations.  If we have 1 or more services to advertise then we allocate enough
+	// storage to host them and then copy them in one at a time into the contiguous storage.
+	int numServices = m_serviceUUIDs.size();
+	if (numServices > 0) {
+		m_advData.service_uuid_len = 16*numServices;
+		m_advData.p_service_uuid = new uint8_t[m_advData.service_uuid_len];
+		uint8_t* p = m_advData.p_service_uuid;
+		for (int i=0; i<numServices; i++) {
+			ESP_LOGD(LOG_TAG, "- advertising service: %s", m_serviceUUIDs[i].toString().c_str());
+			BLEUUID serviceUUID128 = m_serviceUUIDs[i].to128();
+			memcpy(p, serviceUUID128.getNative()->uuid.uuid128, 16);
+			p+=16;
+		}
+	} else {
+		m_advData.service_uuid_len = 0;
+		ESP_LOGD(LOG_TAG, "- no services advertised");
+	}
 
 
 	// Set the configuration for advertising.
+	m_advData.set_scan_rsp = false;
 	esp_err_t errRc = ::esp_ble_gap_config_adv_data(&m_advData);
 	if (errRc != ESP_OK) {
 		ESP_LOGE(LOG_TAG, "<< esp_ble_gap_config_adv_data: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
 		return;
 	}
 
+	m_advData.set_scan_rsp = true;
+	errRc = ::esp_ble_gap_config_adv_data(&m_advData);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gap_config_adv_data (Scan response): rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	// If we had services to advertise then we previously allocated some storage for them.
+	// Here we release that storage.
+	if (m_advData.service_uuid_len > 0) {
+		delete[] m_advData.p_service_uuid;
+		m_advData.p_service_uuid = nullptr;
+	}
+
 	// Start advertising.
 	errRc = ::esp_ble_gap_start_advertising(&m_advParams);
 	if (errRc != ESP_OK) {
@@ -152,4 +149,6 @@ void BLEAdvertising::stop() {
 	}
 	ESP_LOGD(LOG_TAG, "<< stop");
 } // stop
+
+
 #endif /* CONFIG_BT_ENABLED */