124 lines
3.4 KiB
Arduino
124 lines
3.4 KiB
Arduino
#include <BLEDevice.h>
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#include <BLEServer.h>
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#include <BLEUtils.h>
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#include <BLE2902.h>
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#include <BLEBeacon.h>
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#define DEVICE_NAME "ESP32 iBeacon"
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#define SERVICE_UUID "87b99b2c-9080-4d04-8f00-a5d9a3f9a0e7"
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#define BEACON_UUID "87b99b2c-9080-4d04-8f00-a5d9a3f9a0e7"
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#define BEACON_UUID_REV "e7a0f9a3-d9a5-008f-044d8090-2c9bb987"
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#define CHARACTERISTIC_UUID "87b99b2c-9080-4d04-8f00-a5d9a3f9a0e7"
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BLEServer *pServer;
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BLECharacteristic *pCharacteristic;
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bool deviceConnected = false;
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uint8_t value = 0;
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class MyServerCallbacks: public BLEServerCallbacks {
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void onConnect(BLEServer* pServer) {
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deviceConnected = true;
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Serial.println("deviceConnected = true");
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};
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void onDisconnect(BLEServer* pServer) {
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deviceConnected = false;
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Serial.println("deviceConnected = false");
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// Restart advertising to be visible and connectable again
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BLEAdvertising* pAdvertising;
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pAdvertising = pServer->getAdvertising();
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pAdvertising->start();
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Serial.println("iBeacon advertising restarted");
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}
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};
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class MyCallbacks: public BLECharacteristicCallbacks {
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void onWrite(BLECharacteristic *pCharacteristic) {
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std::string rxValue = pCharacteristic->getValue();
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if (rxValue.length() > 0) {
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Serial.println("*********");
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Serial.print("Received Value: ");
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for (int i = 0; i < rxValue.length(); i++) {
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Serial.print(rxValue[i]);
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}
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Serial.println();
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Serial.println("*********");
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}
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}
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};
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void init_service() {
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BLEAdvertising* pAdvertising;
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pAdvertising = pServer->getAdvertising();
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pAdvertising->stop();
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// Create the BLE Service
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BLEService *pService = pServer->createService(BLEUUID(SERVICE_UUID));
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// Create a BLE Characteristic
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pCharacteristic = pService->createCharacteristic(
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CHARACTERISTIC_UUID,
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BLECharacteristic::PROPERTY_READ |
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BLECharacteristic::PROPERTY_WRITE |
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BLECharacteristic::PROPERTY_NOTIFY
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);
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pCharacteristic->setCallbacks(new MyCallbacks());
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pCharacteristic->addDescriptor(new BLE2902());
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pAdvertising->addServiceUUID(BLEUUID(SERVICE_UUID));
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// Start the service
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pService->start();
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pAdvertising->start();
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}
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void init_beacon() {
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BLEAdvertising* pAdvertising;
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pAdvertising = pServer->getAdvertising();
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pAdvertising->stop();
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// iBeacon
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BLEBeacon myBeacon;
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myBeacon.setManufacturerId(0x004C);
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myBeacon.setMajor(1);
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myBeacon.setMinor(3); // ESP32-ID: 1 to n
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myBeacon.setSignalPower(0xc5);
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myBeacon.setProximityUUID(BLEUUID(BEACON_UUID_REV));
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BLEAdvertisementData advertisementData;
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advertisementData.setFlags(0x1A);
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advertisementData.setManufacturerData(myBeacon.getData());
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pAdvertising->setAdvertisementData(advertisementData);
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pAdvertising->start();
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}
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void setup() {
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Serial.begin(115200);
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Serial.println();
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Serial.println("Initializing...");
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Serial.flush();
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BLEDevice::init(DEVICE_NAME);
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pServer = BLEDevice::createServer();
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pServer->setCallbacks(new MyServerCallbacks());
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init_service();
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init_beacon();
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Serial.println("iBeacon + service defined and advertising!");
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}
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void loop() {
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if (deviceConnected) {
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Serial.printf("*** NOTIFY: %d ***n", value);
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pCharacteristic->setValue(&value, 1);
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pCharacteristic->notify();
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value++;
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}
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delay(2000);
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} |