Near Field Communication (NFC) is a set of short-range wireless technologies. It's behind daily applications such as access control system and mobile payment system.
Grove NFC features a highly integrated transceiver module PN532 which handles contactless communication at 13.56MHz. You can read and write a 13.56MHz tag with this module or implement point to point data exchange with two NFCs. Grove NFC is designed to use I2C or UART communication protocols, and UART is the default mode. In addition, we assign an independent PCB antenna which can easily stretch out of any enclosure you use, leaving more room for you to design the exterior of your project.
Working Voltage: 3.3V
Working Current: Static Mode: 73mA, Write/Read Mode: 83mA
Support host interface: I2C, UART(default).
Serve for contactless communication at 13.56MHz.
Support ISO14443 Type A and Type B protocols.
Max operating distance for detecting NFC tags is 28mm depending on current antenna size.
Support P2P communication.
Dimensions: 25.43mm x 20.35mm
Grove - NFC x1
NFC Antenna x1
IPX connect wire - 120mm x1
24AWG Grove Cable - 4P-4P-2.0-200mm x1
|Dimensions||130mm x 90mm x 8mm|
Can anyone please clarify what and where requires to be cut to make the board work with I2C?
We used I2C interface in the libraries of NDEF, so please cut off the connection between P1 and UART, and solder P1 and I2C together. More information please visit the wiki of Grove - NFC.
I'm running into the same problem. The board doesn't seem to have any obvious connection between UART and P1. Could you upload a photograph on the wiki showing where we'd need to cut? I've soldered P1 and I2C together with no succes
Yep. It would be REALLY helpful if you could show specifically how this is done.
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