ESP32 Forum

Code: Select all

[env:esp32dev]
framework = arduino
platform = espressif32
board = az-delivery-devkit-v4
board_build.partitions = huge_app.csv
monitor_speed = 115200
lib_deps =
	h2zero/NimBLE-Arduino@^1.4.0

Code: Select all

#include <Arduino.h>
#include "NimBLEDevice.h"

const int NUMBER_SCAN = 40; // number of scans to perform
const int SCAN_DURATION = 1.1; // duration of a scan in seconds

NimBLEScan *pBLEScan;

void collectAdvertisingPackets()
{
    // scan NUMBER_SCAN times
    for (int i = 0; i < NUMBER_SCAN; i++)
    {
        NimBLEScanResults result = pBLEScan->start(SCAN_DURATION);
        // number of advertising devices found
        int count = result.getCount();

        Serial.printf("Total devices found: %d\n", count);

        // for each device found
        for (int j = 0; j < count; j++)
        {
            NimBLEAdvertisedDevice device = result.getDevice(j);
            std::string macAddress = device.getAddress().toString();

            Serial.println(macAddress.c_str());
        }

        pBLEScan->clearResults(); // delete results from BLEScan buffer to release memory
    }
}

void setup()
{
    // baudrate for serial communication
    Serial.begin(115200);    

    // BLE scan
    NimBLEDevice::init(""); // initialize the ESP32 microcontroller as a BLE device
    pBLEScan = NimBLEDevice::getScan();
}

void loop()
{
    collectAdvertisingPackets();
}