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device manual is elechouse V3 PN532

p.e. to connect via HSU (serial) the wiring is:

elechouse PN532         RPi
---------------         ---
GND                     6
VCC                     1 (3V3) or 2 (5V)?
SDA/TxD                 10
SDL/RxD                 8

Similar wiring for I2C

I've found that it works either with 3V3 or 5V but documentation is unclear with respect to voltage. Can 5V damage RPi? elechouse docs say that it has an integrated shift level converter. Thanks

francesc
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1 Answers1

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Feeding 5V into a Pi GPIO will damage and eventually destroy the GPIO and the Pi.

If the PN532 works at 3V3 that is the safest option.

joan
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