replaced original BLE_iBeacon.ino example with a known-good one (#7470)
* replaced original iBeacon example with a known-good one * addressed VojtechBartoska's comment * incorporated P-R-O-C-H-Y's change Co-authored-by: Jan Procházka <90197375+P-R-O-C-H-Y@users.noreply.github.com>
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Bob Igo
GitHub
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1 changed files with 138 additions and 104 deletions
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/*
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Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
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Ported to Arduino ESP32 by pcbreflux
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*/
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/*
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Create a BLE server that will send periodic iBeacon frames.
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The design of creating the BLE server is:
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1. Create a BLE Server
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2. Create advertising data
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3. Start advertising.
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4. wait
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5. Stop advertising.
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6. deep sleep
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*/
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#include "sys/time.h"
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#include "BLEDevice.h"
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#include "BLEUtils.h"
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#include "BLEBeacon.h"
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#include "esp_sleep.h"
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#define GPIO_DEEP_SLEEP_DURATION 10 // sleep x seconds and then wake up
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RTC_DATA_ATTR static time_t last; // remember last boot in RTC Memory
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RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
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#ifdef __cplusplus
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extern "C" {
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#endif
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uint8_t temprature_sens_read();
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//uint8_t g_phyFuns;
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#ifdef __cplusplus
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}
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#endif
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// See the following for generating UUIDs:
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// https://www.uuidgenerator.net/
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BLEAdvertising *pAdvertising;
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struct timeval now;
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#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d" // UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
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void setBeacon() {
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BLEBeacon oBeacon = BLEBeacon();
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oBeacon.setManufacturerId(0x4C00); // fake Apple 0x004C LSB (ENDIAN_CHANGE_U16!)
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oBeacon.setProximityUUID(BLEUUID(BEACON_UUID));
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oBeacon.setMajor((bootcount & 0xFFFF0000) >> 16);
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oBeacon.setMinor(bootcount&0xFFFF);
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BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
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BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
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oAdvertisementData.setFlags(0x04); // BR_EDR_NOT_SUPPORTED 0x04
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std::string strServiceData = "";
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strServiceData += (char)26; // Len
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strServiceData += (char)0xFF; // Type
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strServiceData += oBeacon.getData();
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oAdvertisementData.addData(strServiceData);
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pAdvertising->setAdvertisementData(oAdvertisementData);
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pAdvertising->setScanResponseData(oScanResponseData);
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pAdvertising->setAdvertisementType(ADV_TYPE_NONCONN_IND);
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}
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void setup() {
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Serial.begin(115200);
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gettimeofday(&now, NULL);
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Serial.printf("start ESP32 %d\n",bootcount++);
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Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n",now.tv_sec,now.tv_sec-last);
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last = now.tv_sec;
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// Create the BLE Device
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BLEDevice::init("");
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// Create the BLE Server
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// BLEServer *pServer = BLEDevice::createServer(); // <-- no longer required to instantiate BLEServer, less flash and ram usage
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pAdvertising = BLEDevice::getAdvertising();
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setBeacon();
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// Start advertising
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pAdvertising->start();
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Serial.println("Advertizing started...");
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delay(100);
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pAdvertising->stop();
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Serial.printf("enter deep sleep\n");
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esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
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Serial.printf("in deep sleep\n");
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}
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void loop() {
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}
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/*
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Based on 31337Ghost's reference code from https://github.com/nkolban/esp32-snippets/issues/385#issuecomment-362535434
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which is based on pcbreflux's Arduino ESP32 port of Neil Kolban's example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
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*/
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/*
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Create a BLE server that will send periodic iBeacon frames.
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The design of creating the BLE server is:
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1. Create a BLE Server
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2. Create advertising data
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3. Start advertising.
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4. wait
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5. Stop advertising.
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*/
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#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"
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#define SERVICE_UUID "7A0247E7-8E88-409B-A959-AB5092DDB03E"
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#define BEACON_UUID "2D7A9F0C-E0E8-4CC9-A71B-A21DB2D034A1"
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#define BEACON_UUID_REV "A134D0B2-1DA2-1BA7-C94C-E8E00C9F7A2D"
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#define CHARACTERISTIC_UUID "82258BAA-DF72-47E8-99BC-B73D7ECD08A5"
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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(0x4c00);
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myBeacon.setMajor(5);
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myBeacon.setMinor(88);
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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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}
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