Connect ESP32 TO Whatsapp (New)

1const char* ssid = "YOUR_WIFI_SSID";
2const char* password = "YOUR_WIFI_PASSWORD";
3const String accountSID = "YOUR_TWILIO_SID";
4const String authToken = "YOUR_TWILIO_AUTH_TOKEN";
5const String toNumber = "whatsapp:+YOUR_VERIFIED_PHONE";

1#include <WiFi.h>
2#include <HTTPClient.h>
3#include <Base64.h>
4
5// Replace with your network credentials
6const char* ssid = "YOUR_SSID";
7const char* password = "YOUR_PASSWORD";
8
9// Twilio credentials
10const String accountSID = "YOUR_TWILIO_ACCOUNT_SID";
11const String authToken = "YOUR_TWILIO_AUTH_TOKEN";
12const String fromNumber = "whatsapp:+14155238886"; // Twilio sandbox number
13const String toNumber = "whatsapp:+YOUR_PHONE_NUMBER"; // your verified number
14
15void setup() {
16  Serial.begin(115200);
17  WiFi.begin(ssid, password);
18  Serial.print("Connecting to WiFi...");
19  while (WiFi.status() != WL_CONNECTED) {
20    delay(1000);
21    Serial.print(".");
22  }
23  Serial.println("\nConnected!");
24
25  sendWhatsAppMessage("Hello from ESP32 via Twilio!");
26}
27
28void loop() {
29  // Nothing here
30}
31
32void sendWhatsAppMessage(const String& message) {
33  if (WiFi.status() == WL_CONNECTED) {
34    HTTPClient http;
35
36    String url = "https://api.twilio.com/2010-04-01/Accounts/" + accountSID + "/Messages.json";
37    http.begin(url);
38
39    String auth = accountSID + ":" + authToken;
40    String encodedAuth = base64::encode(auth);
41    http.addHeader("Authorization", "Basic " + encodedAuth);
42    http.addHeader("Content-Type", "application/x-www-form-urlencoded");
43
44    String body = "To=" + toNumber + "&From=" + fromNumber + "&Body=" + message;
45
46    int httpResponseCode = http.POST(body);
47    if (httpResponseCode > 0) {
48      String response = http.getString();
49      Serial.println("Message sent!");
50      Serial.println(response);
51    } else {
52      Serial.print("Error code: ");
53      Serial.println(httpResponseCode);
54    }
55    http.end();
56  } else {
57    Serial.println("WiFi Disconnected");
58  }
59}