ESP32_BLE_Arduino/examples/Arduino/BLE_server/BLE_server.ino


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/*
    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
*/
 
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEServer.h>
 
BLEDevice ble;
 
// See the following for generating UUIDs: 
// https://www.uuidgenerator.net/ 
 
#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
 
void setup() {
  Serial.begin(115200);
  Serial.println("Starting BLE work!");
 
  ble.init("MyESP32");
  BLEServer *pServer = new BLEServer();
  BLEService *pService = pServer->createService(SERVICE_UUID);
  BLECharacteristic *pCharacteristic = pService->createCharacteristic(
                                         CHARACTERISTIC_UUID,
                                         BLECharacteristic::PROPERTY_READ |
                                         BLECharacteristic::PROPERTY_WRITE
                                       );
 
  pCharacteristic->setValue("Hello World says Neil");
  pService->start();
  BLEAdvertising *pAdvertising = pServer->getAdvertising();
  pAdvertising->start();
  Serial.println("Characteristic defined! Now you can read it in your phone!");
}
 
void loop() {
  // put your main code here, to run repeatedly: 
  delay(2000);
}