I have made a device with both nRF52 and PN532 on the same board. I expect to start a Kickstarter campaign soon. You can find a picture here:devzone.nordicsemi.com/.../
Please let me know of you are still interested, or if you found your solution already.
Hi Cristian, the board looks nice and clean, nice job! I'm wondering if I2C provides enough bandwidth in case you need to do some roundtrips between BLE MCU and PN532, solutions I know usually use faster SPI at 4 or 8 MHz. Also using nRF52840 might be useful because of larger buffer sizes SPIM (TWIM seems to be stuck at 8 bits = 255B which might be limiting in some cases, but I haven't studied PN532 wired protocols in detail). But as far as I know there is no "open hardware BLE equipped NFC reader" so it looks useful! I hope you get funded with your project. Cheers Jan
Hi Cristian, the board looks nice and clean, nice job! I'm wondering if I2C provides enough bandwidth in case you need to do some roundtrips between BLE MCU and PN532, solutions I know usually use faster SPI at 4 or 8 MHz. Also using nRF52840 might be useful because of larger buffer sizes SPIM (TWIM seems to be stuck at 8 bits = 255B which might be limiting in some cases, but I haven't studied PN532 wired protocols in detail). But as far as I know there is no "open hardware BLE equipped NFC reader" so it looks useful! I hope you get funded with your project. Cheers Jan
