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12	- Project: **WiFi Connection**
13	- Source Code NOT compiled for: ESP32 DevKit V1
14	- Source Code created on: 2025-04-22 18:11:00
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16********* Pleasedontcode.com **********/
17
18/****** SYSTEM REQUIREMENTS *****/
19/****** SYSTEM REQUIREMENT 1 *****/
20	/* Create a firmware that function as a MAC sniffer */
21	/* and post data to an api */
22/****** END SYSTEM REQUIREMENTS *****/
23
24/* START CODE */
25
26/****** DEFINITION OF LIBRARIES *****/
27#include <WiFi.h>
28#include <WiFiClient.h>
29#include <HTTPClient.h>
30
31/****** FUNCTION PROTOTYPES *****/
32void setup(void);
33void loop(void);
34void startWiFi();
35void sniffMACAddresses();
36void postDataToAPI(const String &macAddress);
37
38/****** GLOBAL VARIABLES *****/
39const char* ssid = "your_SSID"; // Replace with your WiFi SSID
40const char* password = "your_PASSWORD"; // Replace with your WiFi password
41const char* apiEndpoint = "http://your_api_endpoint"; // Replace with your API endpoint
42
43void setup(void)
44{
45    Serial.begin(115200);
46    startWiFi();
47}
48
49void loop(void)
50{
51    sniffMACAddresses();
52    delay(10000); // Delay between scans
53}
54
55void startWiFi() {
56    // Connect to WiFi
57    Serial.print("Connecting to WiFi...");
58    WiFi.begin(ssid, password);
59    while (WiFi.status() != WL_CONNECTED) {
60        delay(1000);
61        Serial.print(".");
62    }
63    Serial.println("Connected to WiFi");
64}
65
66void sniffMACAddresses() {
67    // Scan for available networks
68    int n = WiFi.scanNetworks();
69    Serial.println("Scan complete, found networks:");
70    for (int i = 0; i < n; ++i) {
71        String macAddress = WiFi.BSSIDstr(i); // Get MAC address of the network
72        Serial.print("Network: ");
73        Serial.print(WiFi.SSID(i));
74        Serial.print(" | MAC: ");
75        Serial.println(macAddress);
76        
77        // Post MAC address to API
78        postDataToAPI(macAddress);
79    }
80}
81
82void postDataToAPI(const String &macAddress) {
83    if (WiFi.status() == WL_CONNECTED) {
84        HTTPClient http;
85        http.begin(apiEndpoint); // Specify the URL
86        http.addHeader("Content-Type", "application/json"); // Specify content-type header
87
88        // Create JSON payload
89        String payload = "{\"macAddress\":\"" + macAddress + "\"}";
90
91        int httpResponseCode = http.POST(payload); // Send the request
92        if (httpResponseCode > 0) {
93            String response = http.getString(); // Get response
94            Serial.println(httpResponseCode); // Print return code
95            Serial.println(response); // Print response
96        } else {
97            Serial.print("Error on sending POST: ");
98            Serial.println(httpResponseCode);
99        }
100        http.end(); // Free resources
101    } else {
102        Serial.println("WiFi not connected");
103    }
104}
105
106/* END CODE */