PN532 -> systematic Not ready, timeout - Githubissues

eclipse / upm

UPM is a high level repository that provides software drivers for a wide variety of commonly used sensors and actuators. These software drivers interact with the underlying hardware platform through calls to MRAA APIs.

MIT License

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PN532 -> systematic Not ready, timeout #695

Open Franklin62120 opened 4 years ago

Franklin62120 commented 4 years ago

Hi !!

I'm trying the pn532.py example : https://github.com/eclipse/upm/blob/master/examples/python/pn532.py

I've just changed line 31 myNFC = upmPn532.PN532(3, 2) to this one to match Respeaker specifications (https://github.com/respeaker/mraa/blob/master/docs/axolotl.md ) myNFC = upmPn532.PN532(0, 0, 0, 0x24)

But got systematically this error :

respeaker@v2:~$ python3 pn532.py
sendCommandCheckAck: Not ready, timeout
Could not identify PN532
Exiting

I'm using a Respeaker Core V2 : http://wiki.seeedstudio.com/ReSpeaker_Core_v2.0/#hardware-overview and this NFC card : http://wiki.seeedstudio.com/Grove_NFC/#grove-nfc-v11

I tried with LibNfc, got no problem to read a tag. What could be the error when using UPM lib ?