commit 83909f0e83c948f81e0baf2bb2d43305316705eb
Author: Hernan <hernan.ferreyra@faniot.com.ar>
Date:   Thu May 20 15:42:48 2021 -0300

    medidor de tarjetas

diff --git a/Grabador_tarjetas.ino b/Grabador_tarjetas.ino
new file mode 100644
index 0000000..7bedf26
--- /dev/null
+++ b/Grabador_tarjetas.ino
@@ -0,0 +1,96 @@
+#if 0
+#include <SPI.h>
+#include <PN532_SPI.h>
+#include <PN532.h>
+#include <NfcAdapter.h>
+
+PN532_SPI pn532spi(SPI, 10);
+NfcAdapter nfc = NfcAdapter(pn532spi);
+#else
+
+#include <Wire.h>
+#include <PN532_I2C.h>
+#include <PN532.h>
+#include <NfcAdapter.h>
+
+PN532_I2C pn532_i2c(Wire);
+NfcAdapter nfc = NfcAdapter(pn532_i2c);
+#endif
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("NDEF Writer");
+  nfc.begin();
+}
+bool success2 = false;
+int grabador_machine = 0;
+String Name;
+const int payloadLength = 50;
+int char_count = 0;
+byte payload[payloadLength];
+
+void loop() {
+  if (Serial.available() > 0) {
+    int inByte = Serial.read();
+    if (inByte == '#') {
+
+      Serial.print("Name: ");
+      Serial.println(Name);
+
+    } else {
+      Name += (char)payload[char_count];
+    }
+    char_count++;
+    grabador_machine = !grabador_machine;
+
+  }
+
+  switch (grabador_machine) {
+    case 0 :
+      Serial.println("\nPlace a formatted Mifare Classic NFC tag on the reader.");
+      if (nfc.tagPresent()) {
+
+        success2 = nfc.format();
+        if (success2) {
+          Serial.println("\nSuccess, tag formatted as NDEF.");
+          grabador_machine = 1;
+        } else {
+          Serial.println("\nFormat failed.");
+        }
+      }
+      delay(1000);
+
+      break;
+    case 1 :
+    { if (nfc.tagPresent()) {
+          NdefMessage message = NdefMessage();
+          message.addTextRecord("Pedro Salzman", "ñ");
+          boolean success = nfc.write(message);
+          if (success) {
+            Serial.println("Success. Try reading this tag with your phone.");
+            grabador_machine = 0;
+          } else {
+            Serial.println("Write failed");
+          }
+        }
+        delay(1000);
+      }
+      break;
+
+    case 2 :
+
+      for (int c = 3; c < payloadLength; c++) {
+        Name += (char)payload[c];
+
+      }
+      break;
+
+    default :
+      {
+        Serial.println("End");
+        delay(11100);
+      }
+      break;
+
+  }
+}