I am using an RFID module as a 'power on' function and once detected an OLED display a RTC time. Previously I used another RFID (RC522) and it didn't slow the rest of the sketch down but the 532 does. They are both hardware SPI. The RFID sketch on its own seems to run fairly quickly and recognises…

PN532 RFID slowing rest of sketch

kpg March 3, 2019, 9:12am 2

I found this U Tube video that I think helps my problem. Has anyone tried this? I don't totally understand it but it seems logical?

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