Hi all, I am trying to get NFC up and running on Raspberry Pi 4 using the Adafruit PN532. I have a couple of questions.. 1. Has anyone got the definitive wiring protocol for SPI to Raspberry Pi 4. I must have come across 3-4 different ways. 2. I have followed the below link: http://wiki.sunfounder.c...

Thank you everyone. I will follow a few of the avenues that you have listed and report back at a later date.

I had a similar issue as to the one above: pi@raspberrypi:~/libnfc/libnfc-1.7.0/examples $ sudo ./nfc-poll /home/pi/libnfc/libnfc-1.7.0/examples/.libs/nfc-poll uses libnfc 1.7.0 nfc-poll: ERROR: Unable to open NFC device. I changed the port from ttyACM0 to ttyS0 in the /etc/nfc/devices.d/pn532_uart_...

Hi, I'm quite new to raspberry pi and python. I have been set a project to take a sound level meter and make it wireless using a raspberry pi. The meter I will be using is this one: https://peaktech-rce.com/en/phonometers/260-peaktech-8005-professional-sound-level-meter-with-datalogger.html The moni...