Rasp Pi 3a+ not detecting NFC hat pn532

1

Hi there,

I have been trying to get a 3a+ to detect a pn532 Hat. I have tested the UART, I2C and SPI, and could not detect any. I have gone through troubleshooting with a range of different code and even attempted a VE. Wondering if anyone has had this trouble / managed to get these to connect?

Cheers, Ren

2

Some PN532 boards default to UART even if you think you’re using I²C/SPI. Always set the DIP/jumper explicitly.
If i2cdetect shows nothing, but wiring + config are right, your board might be stuck in HSU (UART) mode.

3

Thanks, I ended up defaulting to set it up on UART but still could not get it to detect, have you managed to get these to work before?