113 lines
2.8 KiB
C++
113 lines
2.8 KiB
C++
#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266HTTPClient.h>
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#include <SPI.h>
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#include <MFRC522.h>
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#define RST_PIN 5 // Pin RST pada ESP8266 = d1
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#define SS_PIN 4 // Pin SDA (SS) pada ESP8266 = d2
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#define BUZZER_PIN 15 // Pin untuk buzzer (gunakan GPIO2 / D4)
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const char* ssid = "jtilt3"; // Ganti dengan SSID Wi-Fi
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const char* password = "12345678"; // Ganti dengan password Wi-Fi
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const String serverUrl = "http://192.168.5.238/keranjang.php"; // URL server
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MFRC522 mfrc522(SS_PIN, RST_PIN); // Inisialisasi RFID reader
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void setup() {
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Serial.begin(115200);
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SPI.begin();
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mfrc522.PCD_Init();
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pinMode(BUZZER_PIN, OUTPUT); // Atur pin buzzer sebagai output
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digitalWrite(BUZZER_PIN, LOW); // Matikan buzzer di awal
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// Koneksi Wi-Fi
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Serial.println("Connecting to Wi-Fi...");
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(700);
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Serial.print(".");
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buzz(150);
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}
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Serial.println("\nConnected to Wi-Fi");
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Serial.println("IP Address: " + WiFi.localIP().toString());
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buzz(600);
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}
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void loop() {
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// Deteksi RFID baru
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if (!mfrc522.PICC_IsNewCardPresent() || !mfrc522.PICC_ReadCardSerial()) {
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delay(50);
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return;
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}
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// Ambil UID dari RFID tag
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String tagID = "";
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for (byte i = 0; i < mfrc522.uid.size; i++) {
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tagID += String(mfrc522.uid.uidByte[i], HEX);
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}
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tagID.toUpperCase();
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Serial.println("Tag detected: " + tagID);
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buzz(100);
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// Kirim data ke server
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sendToServer(tagID);
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delay(1000);
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}
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void sendToServer(String tagID) {
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if (WiFi.status() == WL_CONNECTED) {
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WiFiClient client;
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HTTPClient http;
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String postData = "keranjang=1&rfid=" + tagID; // Kirim data keranjang dan rfid_tag
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http.begin(client, serverUrl);
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http.addHeader("Content-Type", "application/x-www-form-urlencoded");
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Serial.println("Sending data to server...");
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int httpResponseCode = http.POST(postData); // Kirim data
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if (httpResponseCode > 0) {
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String response = http.getString();
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Serial.println("Server response: " + response);
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buzz(200);
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} else {
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Serial.println("Failed to send data. HTTP Response code: " + String(httpResponseCode));
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buzz(500);
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}
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http.end();
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} else {
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Serial.println("Wi-Fi disconnected, cannot send data.");
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buzz(300);
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}
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}
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void checkServerConnection() {
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WiFiClient client;
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if (client.connect("192.168.5.238", 80)) {
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Serial.println("Server is reachable!");
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client.stop();
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} else {
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Serial.println("Cannot reach the server.");
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}
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}
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// Fungsi untuk mengontrol buzzer
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void buzz(int duration) {
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digitalWrite(BUZZER_PIN, HIGH);
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delay(duration);
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digitalWrite(BUZZER_PIN, LOW);
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}
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