Valentin Romero
67 lines
1.7 KiB
Plaintext
67 lines
1.7 KiB
Plaintext
#include <WiFi.h>
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#include <HTTPClient.h>
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#include <SPI.h>
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#include <MFRC522.h>
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#define SS_PIN 21 // GPIO21 para SS (SDA)
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#define RST_PIN 22 // GPIO22 para RST
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MFRC522 rfid(SS_PIN, RST_PIN);
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const char* ssid = "Personal-915-2.4GHz";
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const char* password = "00439028922";
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const char* post_url = "http://localhost:3000/rfid/ping";
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void setup() {
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Serial.begin(115200);
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SPI.begin(18, 19, 23); // SCK, MISO, MOSI (GPIO18,19,23)
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WiFi.begin(ssid, password);
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Serial.print("Conectando a WiFi...");
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println("\nWiFi conectado.");
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rfid.PCD_Init();
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Serial.println("Lector RFID listo.");
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}
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void loop() {
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if (!rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial()) {
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delay(100);
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return;
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}
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// Leer UID
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String uid = "";
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for (byte i = 0; i < rfid.uid.size; i++) {
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uid += String(rfid.uid.uidByte[i] < 0x10 ? "0" : "");
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uid += String(rfid.uid.uidByte[i], HEX);
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}
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uid.toUpperCase(); // Ej: B31D7313
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Serial.println("UID detectado: " + uid);
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// Enviar POST
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if (WiFi.status() == WL_CONNECTED) {
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HTTPClient http;
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http.begin(post_url);
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http.addHeader("Content-Type", "application/json");
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String jsonBody = "{\"id\": \"" + uid + "\"}";
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Serial.println("Enviando POST: " + jsonBody);
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int httpResponseCode = http.POST(jsonBody);
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Serial.printf("Código de respuesta: %d\n", httpResponseCode);
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String payload = http.getString();
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Serial.println("Respuesta: " + payload);
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http.end();
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} else {
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Serial.println("WiFi no conectado.");
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}
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rfid.PICC_HaltA(); // Detener comunicación
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rfid.PCD_StopCrypto1();
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delay(2000); // Esperar antes de siguiente lectura
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} |