I have purchased rfid-rc522 then connected pins and light on sensor started glowing, then I made code that initializes rfid sensor and then it writes string to card. Then when I press b I get what is on card. If I try to read what is on card it always shows me null. If I try to get id or write something to card it just "un-connects" to sensor. pls help
I have purchased rfid-rc522 then connected pins and light on sensor started glowing, then I made code that initializes rfid sensor and then it writes string to card. Then when I press b I get what is on card. If I try to read what is on card it always shows me null. If I try to get id or write something to card it just "un-connects" to sensor. pls help