Schematic of PN532 RFID/NFC Shield
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Schematic of PN532 RFID/NFC Shield

by emtrion on Wed Jan 16, 2013 7:08 am

We have bought an PN532 NFC Shield since the NFC breakout board was not available from stock. Now we own the bord but have not got any documentation how to use it outside an Arduino stack.

The design seems to be different compared to the brealout board. We want to connect the board with an external microcontroller using the UART interface. By measuring we found that SEL0 must be open and SEL1 closed so that both configation bits become 0. But when we send a telegram to the PN532 we never get an acknowledge. Measuring showed that the signal lines SCL and SDA end at parts with SOT23 package and not at the PN532 as expected.

Can you please send as a schematic so that we are able to configure everything right for the UART interface?

Best regards,
Siegfried
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Re: Schematic of PN532 RFID/NFC Shield

by adafruit_support_bill on Wed Jan 16, 2013 7:33 am


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Re: Schematic of PN532 RFID/NFC Shield

by ktownsend on Tue Jan 22, 2013 1:15 pm

Please note that the SEL0 and SEL1 silkscreen labels are reversed on the current shields (SEL0 actually = SEL1 and vice versa). This will be fixed in the next run of the boards, and only affects people using this outside the normal use case, but it may confuse you in your case.

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Re: Schematic of PN532 RFID/NFC Shield

by slight on Wed Mar 16, 2016 2:03 pm

hey,

for everyone that is searching for the schematics in pdf form or the layout of the mounting holes on the SHIELD version of the PN532 RFID/NFC
have a look at the pull request i made to the original repository:
https://github.com/adafruit/Adafruit-PN ... eld/pull/2
i just added the dimensions and the pdfs:
https://github.com/s-light/Adafruit-PN5 ... .0_sch.pdf
https://github.com/s-light/Adafruit-PN5 ... .0_brd.pdf

ATTENTION: this is based on the repository - and that has board revision 1.0 -
i got an revision 1.3 board at my last order in January 2016.

sunny greetings
stefan

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Please be positive and constructive with your questions and comments.