Qfyilyi

I'm working on RFID attendance management system using Arduino.

I'm saving the data on the second block on Arduino. The only data I'm saving is "1".

Here's my code:

void setup() {

    Serial.begin(9600);        

    SPI.begin();               

}



int block=2;



byte blockcontent[16] = {"1"};

//byte blockcontent[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

byte readbackblock[18];



void loop()

{       

    mfrc522.PCD_Init(); 

    for (byte i = 0; i < 6; i++) {

        key.keyByte[i] = 0xFF;

    }



    if ( ! mfrc522.PICC_IsNewCardPresent()) {

        return;

    }



    if ( ! mfrc522.PICC_ReadCardSerial()) {

        return;

    }



    Serial.println("card selected");         

    writeBlock(block, blockcontent);

    readBlock(block, readbackblock);

    Serial.print("read block: ");

    for (int j=0 ; j<16 ; j++)

    {

        Serial.write (readbackblock[j]);

        if(readbackblock[j]=="1"){

            Serial.print("Test completed!!");

        }

    }

    Serial.println("");        

}

My Issue:

I wanted to retrieve the data from the Arduino and do something with it. I know that by using Serial.write (readbackblock[j]) we transmits the ASCII numbers as human-readable characters to the serial monitor ( and I get "1" on the Serial Monitor) but the following if statement is not working.

if(readbackblock[j]=="1"){

    Serial.print("Test completed!!");

}