i want to remove time in "nfc.tagPresent()" function

Projects Programming
1

In my code i want to print string value frequent but i found a problem that
"nfc.tagPresent()" function Delayed for about 2 seconds.

#include <Wire.h>
#include <PN532_I2C.h>
#include <PN532.h>
#include <NfcAdapter.h>
PN532_I2C pn532_i2c(Wire);
NfcAdapter nfc = NfcAdapter(pn532_i2c);
String payloadAsString2 = "";
unsigned long timeoutt = 0;
void setup(void) {
Serial.begin(9600);
nfc.begin();
}
void loop() {



if (nfc.tagPresent())
{
NfcTag tag = nfc.read();

if (tag.hasNdefMessage())
{
NdefMessage message = tag.getNdefMessage();
int recordCount = message.getRecordCount();
for (int i = 0; i < recordCount; i++)
{
NdefRecord record = message.getRecord(i);

int payloadLength = record.getPayloadLength();
byte payload[payloadLength];
record.getPayload(payload);
String payloadAsString = "";
for (int c = 0; c < payloadLength; c++) {
payloadAsString += (char)payload
```c
;
        }

if ( (payloadAsString[0] == '') &&(payloadAsString[1] == 'e')&&(payloadAsString[2] == 'n'))
          {
            if(payloadAsString2 != payloadAsString){
            payloadAsString2 = payloadAsString;
            }
          }

}
          }
        }

Serial.println(payloadAsString2);     
  //delay(100);
}[/sup]
```

2

I found a second problem, you have not read how to post code in the right way...

Please correct your post above and add code tags around your code:
[code]`` [color=blue]// your code is here[/color] ``[/code].

It should look like this:// your code is here
(Also press ctrl-T (PC) or cmd-T (Mac) in the IDE before copying to indent your code properly)

otherwise, for your question, have a look at the source of the [url=https://github.com/don/NDEF/blob/838d3b68a62c5b95158b4ab4bdeabb3a5225001f/NfcAdapter.cpp#L39]tagPresent()[/url] method, there is a call to [url=https://github.com/adafruit/Adafruit-PN532/blob/master/Adafruit_PN532.cpp#L561]readPassiveTargetID()[/url] (from PN532.cpp) with an interesting parameter to explore (including its default value - check the comment)...