Need help with NFC shield
Hi guys. So I just got a Adafruit NFC shield today. I downloaded the library and burned the example program to my arduino Mega 1280. But it didn't work......... I connected VCC and GND (of course...), SDA and SCL to 20 and 21 port, analog 4,5 to analog 4,5 on Arduino board, Digital 2 to PWM 2 on Arduino board and RSt to RST. However, when I try to run the program, the Serial Monitor show "Hello, Didn't find PN53X board." Did I use the wrong library and wrong program or what? Can someone helps me out? Thanks!