Keyestudio KS0077, Manual, Page: 142 / 142

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CalulateCRC(buff, 2, &buff[2]);
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff,&unLen);
}
//////////////////////////////////////////////////////////
Note: if you want to use MEGA 2560 R3, please in the code change
const int chipSelectPin = 10;//if the controller is UNO,328,168
into
const int chipSelectPin = 53;//if the controller is UNO,328,168
Test Result
In this experiment, when the IC card approaches, RFID module will write data to the IC card and
read the card’s data, you can see the data on the monitor window. Shown below.