hi,the SPI pins on the NFC Shield doesn’t connect to the pin 10,11,12,13, they just connect to the ICSP. So, you must mount the NFC Shield above the Ardunio Uno not the Ethernet Shield.
hi,the SPI pins on the NFC Shield doesn’t connect to the pin 10,11,12,13, they just connect to the ICSP. So, you must mount the NFC Shield above the Ardunio Uno not the Ethernet Shield.