`ble-beacon-sender.ino`

M5Stack PaperDIY Complete Kit · File : ble-beacon-sender.ino · Language : C++ (Arduino) · Use case : Diffuser un signal Bluetooth Low Energy (BLE) pour la détection de proximité.

BLE server configuration to broadcast data without active client connection.

Uses the native BLE stack of the ESP32-S3. The kit broadcasts the name 'PaperDIY_Beacon'. Use an app like 'nRF Connect' on phone to scan and see data. Ideal for local notifications or presence identifiers.

ble-beacon-sender.ino

#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEServer.h>

#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"

BLECharacteristic *pCharacteristic;

void setup() {
  Serial.begin(115200);
  BLEDevice::init("PaperDIY_Beacon");
  BLEServer *pServer = BLEDevice::createServer();
  BLEService *pService = pServer->createService(SERVICE_UUID);
  pCharacteristic = pService->createCharacteristic(
    CHARACTERISTIC_UUID,
    BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_WRITE
  );
  pCharacteristic->setValue("Hello World");
  pService->start();
  BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
  pAdvertising->addServiceUUID(SERVICE_UUID);
  pAdvertising->start();
  Serial.println("BLE Advertising started");
}

void loop() {
  delay(1000);
}

← Back to the board