112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
#include "BluetoothLeUartServer.h"
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BluetoothLeUartServer::BluetoothLeUartServer(String deviceName, const char uartServiceUUID[36], const char rxUUID[36], const char txUUID[36])
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{
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this->uartServiceUUID = uartServiceUUID;
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this->rxUUID = rxUUID;
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this->txUUID = txUUID;
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this->callbacks = nullptr;
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this->deviceConnected = false;
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this->deviceConnectionId = -1;
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// Create the BLE Device
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BLEDevice::init(deviceName.c_str()); // Give it a name
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// Create the BLE Server
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bleServer = BLEDevice::createServer();
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bleServer->setCallbacks(this);
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// Create the BLE Service
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bleService = bleServer->createService(this->uartServiceUUID);
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// Create a BLE Characteristic
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txCharacteristic = bleService->createCharacteristic(
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this->txUUID,
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BLECharacteristic::PROPERTY_NOTIFY);
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txCharacteristic->addDescriptor(new BLE2902());
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rxCharacteristic = bleService->createCharacteristic(
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this->rxUUID,
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BLECharacteristic::PROPERTY_READ |
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BLECharacteristic::PROPERTY_WRITE);
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rxCharacteristic->setCallbacks(this);
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// Start the service
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bleService->start();
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// Start advertising
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bleServer->getAdvertising()->addServiceUUID(bleService->getUUID());
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bleServer->getAdvertising()->setScanResponse(true);
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bleServer->getAdvertising()->setMinPreferred(0x06); // functions that help with iPhone connections issue
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bleServer->getAdvertising()->setMinPreferred(0x12);
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bleServer->getAdvertising()->start();
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}
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void BluetoothLeUartServer::setCallbacks(BluetoothLeUartServerCallbacks *callbacks)
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{
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this->callbacks = callbacks;
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}
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void BluetoothLeUartServer::sendData(String data)
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{
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//txCharacteristic->setValue(data.c_str());
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//Serial.printf("String is : '%s' with length of %d\n", data.c_str(), data.length() );
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txCharacteristic->setValue((uint8_t*)data.c_str(),data.length());
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txCharacteristic->notify();
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}
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bool BluetoothLeUartServer::getDeviceConnected()
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{
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return this->deviceConnected;
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}
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bool BluetoothLeUartServer::disconnectCurrentDevice() {
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if(!this->getDeviceConnected())
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return false;
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this->bleServer->disconnect(this->deviceConnectionId);
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return true;
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}
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String BluetoothLeUartServer::getDeviceAddress() {
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String address = BLEDevice::getAddress().toString().c_str();
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address.toUpperCase();
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return address;
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}
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void BluetoothLeUartServer::onConnect(BLEServer* pServer, esp_ble_gatts_cb_param_t *param)
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{
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// only allow one device
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if(this->deviceConnected)
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return this->bleServer->disconnect(param->connect.conn_id);
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this->deviceConnected = true;
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this->deviceConnectionId = param->connect.conn_id;
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if (this->callbacks != nullptr)
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{
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this->callbacks->onDeviceConnectedChanged(this->deviceConnected);
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}
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}
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void BluetoothLeUartServer::onDisconnect(BLEServer *pServer)
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{
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this->deviceConnected = false;
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this->deviceConnectionId = -1;
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bleServer->getAdvertising()->start();
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Serial.println("Restart advertising after disconnect ...");
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if (this->callbacks != nullptr)
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this->callbacks->onDeviceConnectedChanged(this->deviceConnected);
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}
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void BluetoothLeUartServer::onWrite(BLECharacteristic *rxCharacteristic)
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{
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if (this->callbacks != nullptr)
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this->callbacks->onDataReceived(rxCharacteristic->getValue().c_str());
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} |