can i use NFC module with NRF51822?

[leejh]

Hello, Nordic.

I use NRF51822. I know NRF52 series is able to NFC Tag with Antenna.

But I want to use NFC module with NRF51822. If I can modify NRF51822 circuit, is it possible?

If it's possible, I want to know which version of the softdevice and SDK I should use?

the other hands, If it's not possible, what type of softdevice and SDK should i use with the NRF52 series?

I know from SDK v11 that NFC examples are included.

Thank you for your reply

[Jørgen Holmefjord]

Hi,

If you are asking if you can use the nRF51822 as a NFC tag without any external NFC tag chips, then the answer is no, this is not possible.

You will need an external NFC tag IC that can be interfaced through SPI/TWI (I2C)/UART, etc, or upgrade to nRF52832 IC, which have built-in support for the NRF tag.

If you want to develop for nRF52 serier, you should start with the latest SDK and softdevice version, SDK 14.2.0 and s132 v5.x.0 (s132 v5.0.0 supported by the SDK).

Best regards,
Jørgen

[leejh]

Thanks Jorgen.

Thank you for your reply.
Then, If we have to use an external NFC tag IC integrated nRF 51822, what kind of SDK should we use?

[Jørgen Holmefjord]

You can use any SDK that support nRF51 and include drivers for the peripheral you are using to interface the NFC tag IC, but in general it is recommended to always use the latest SDK version. For nRF51 series, the latest SDK version is SDK 12.3.0.

[leejh]

Thanks a lot!!
Your answer was a great help.