ESP32-C6 na Prática: Provisionamento de Wi-Fi via Bluetooth Low Energy

/*********************************************************
 * Projeto: Provisionamento de Wi-Fi via BLE (Bluetooth Low Energy)
 *
 * Autor: Guilherme Fernandes
 * Data: 15/08/2025
 * Placa: ESP32-C6 DevKitC-1
 *********************************************************/


#include "WiFiProv.h"
#include "WiFi.h"


const char *pop = "abcd1234";           // Proof of possession - otherwise called a PIN - string provided by the device, entered by the user in the phone app
const char *service_name = "PROV_123";  // Name of your device (the Espressif apps expects by default device name starting with "Prov_")
const char *service_key = NULL;         // Password used for SofAP method (NULL = no password needed)
bool reset_provisioned = true;          // When true the library will automatically delete previously provisioned data.


// WARNING: SysProvEvent is called from a separate FreeRTOS task (thread)!
void SysProvEvent(arduino_event_t *sys_event) {
  switch (sys_event->event_id) {
    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
      Serial.print("\nConnected IP address : ");
      Serial.println(IPAddress(sys_event->event_info.got_ip.ip_info.ip.addr));
      break;
    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED: Serial.println("\nDisconnected. Connecting to the AP again... "); break;
    case ARDUINO_EVENT_PROV_START: Serial.println("\nProvisioning started\nGive Credentials of your access point using smartphone app"); break;
    case ARDUINO_EVENT_PROV_CRED_RECV:
      {
        Serial.println("\nReceived Wi-Fi credentials");
        Serial.print("\tSSID : ");
        Serial.println((const char *)sys_event->event_info.prov_cred_recv.ssid);
        Serial.print("\tPassword : ");
        Serial.println((char const *)sys_event->event_info.prov_cred_recv.password);
        break;
      }
    case ARDUINO_EVENT_PROV_CRED_FAIL:
      {
        Serial.println("\nProvisioning failed!\nPlease reset to factory and retry provisioning\n");
        if (sys_event->event_info.prov_fail_reason == NETWORK_PROV_WIFI_STA_AUTH_ERROR) {
          Serial.println("\nWi-Fi AP password incorrect");
        } else {
          Serial.println("\nWi-Fi AP not found....Add API \" nvs_flash_erase() \" before beginProvision()");
        }
        break;
      }
    case ARDUINO_EVENT_PROV_CRED_SUCCESS: Serial.println("\nProvisioning Successful"); break;
    case ARDUINO_EVENT_PROV_END: Serial.println("\nProvisioning Ends"); break;
    default: break;
  }
}


void setup() {
  Serial.begin(115200);
  WiFi.begin();  // no SSID/PWD - get it from the Provisioning APP or from NVS (last successful connection)
  WiFi.onEvent(SysProvEvent);


  Serial.println("Begin Provisioning using BLE");
  // Sample uuid that user can pass during provisioning using BLE
  uint8_t uuid[16] = { 0xb4, 0xdf, 0x5a, 0x1c, 0x3f, 0x6b, 0xf4, 0xbf,
                       0xea, 0x4a, 0x82, 0x03, 0x04, 0x90, 0x1a, 0x02 };
  WiFiProv.beginProvision(
    NETWORK_PROV_SCHEME_BLE, NETWORK_PROV_SCHEME_HANDLER_FREE_BLE, NETWORK_PROV_SECURITY_1, pop, service_name, service_key, uuid, reset_provisioned);
  log_d("ble qr");
  WiFiProv.printQR(service_name, pop, "ble");
}


void loop() {}