Tried an other Arduino Nano - it works. So maybe the I2C Pins or smthg else was bricked on the Nano.
W
Posts made by Waldi
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RE: Elechouse PN532 NFC Module V3 for Arduino etc.posted in Ideas for using NFC Rings
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RE: Elechouse PN532 NFC Module V3 for Arduino etc.posted in Ideas for using NFC Rings
Hey guys, found this Thread via google. I have exactly the same issue with a Arduino Nano and ElecHouse V3 Board. I have 3 boards ordered over an Aliexpress dealer.
- wired via i2c
- 3,3V used
- switch set to 1/0 for i2c
- downloaded the libraries from elechouse github
- power LED on board is on
- used demo code from elechouse (and the pieces posted above)
- removed all unneeded code related to SPI and Serial
- also tried with 2 additional 10k pullup resistors on I2C
-> same problem on all 3 V3 Boards - the code hangs on "nfc.begin". I have added a 2nd serial print "Hello" after "nfc.begin". This Hello isn't printed, only the first one. So it definatly hangs on this point.
If I disconnect GND from board on the "Hello" point I get this output (Debug is enabled on PN532_debug.h):
Hello!
write: 02
wait for ack at : 9101
Time out when waiting for ACK
Didn't find PN53x board