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PN532 with ESP32 via SPI
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PN532 with ESP32 via SPI

by mgiara on Wed Jul 01, 2020 5:16 am

Hello!

I had a PN532 connected to an ESP8266 via SPI, everything working well.

I need more pins as I'm adding an ST7735 based TFT to the project, so I switched to the ESP32.

I've tried connecting the ESP32 to the PN532 via both of the following:
Image
taken from https://randomnerdtutorials.com/esp32-pinout-reference-gpios/
to no avail. The last output from the script to the serial monitor is Looking for PN532...

This is the board I'm using: Image

Here's the relevant chunk of code: Image

mgiara
 
Posts: 7
Joined: Sat Aug 25, 2018 11:06 pm

Re: PN532 with ESP32 via SPI

by alexissantos on Mon Oct 12, 2020 4:53 am

Looks like this might have been the cause of the issue: https://github.com/adafruit/Adafruit-PN532/issues/80

I was running into the same thing! Haven't tested yet on my side, but I will in a few hours. Hope this helps!

alexissantos
 
Posts: 1
Joined: Tue Jun 23, 2015 2:11 pm

Please be positive and constructive with your questions and comments.