# Nfc compatibility

**URL:** <https://forum.core-electronics.com.au/t/nfc-compatibility/10893>\
**Category:** Uncategorized\
**Created:** [2 August 2021 03:33 UTC](https://forum.core-electronics.com.au/t/nfc-compatibility/10893 "2021-08-02T03:33:14Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Calobe93858](https://avatars.discourse-cdn.com/v4/letter/c/ea666f/32.png) [@Calobe93858](https://forum.core-electronics.com.au/u/Calobe93858)\
**Post date:** [2 August 2021 03:33 UTC](https://forum.core-electronics.com.au/t/nfc-compatibility/10893/1 "2021-08-02T03:33:14Z")

</div>

> **[Micro NFC/RFID Transponder - NTAG203 13.56MHz](https://core-electronics.com.au/micro-nfc-rfid-transponder-ntag203-13-56mhz.html?utm_source=google_shopping&gclid=CjwKCAjwjJmIBhA4EiwAQdCbxjyRcVwp5FFsamqlZwcDGD9iWqdkHhVomdvbPNY_zXiuzQViwl3huhoCSp4QAvD_BwE)**
>
> This tiny micro NFC/RFID tag is super small, and contains an NTAG203 chip plus antenna. It's super tiny, flexible and a great way to DIY an RFID or NFC device if .. read more

can this chip be used on a universal card reader?

im trying to gather components to build my own door locking system that is seamless and hidden but all the rings i find are incompatible with the readers that arnt just in phones if i can find some chips that work with readers that arnt in phones ill be fine but im having trouble finding any info on the topic

---

<div class="post-metadata">

**Author:** ![BryceT](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/brycet/32/5449_2.png) [@BryceT](https://forum.core-electronics.com.au/u/BryceT)\
**Post date:** [2 August 2021 06:33 UTC](https://forum.core-electronics.com.au/t/nfc-compatibility/10893/2 "2021-08-02T06:33:12Z")

</div>

Hey Calobe,

Depends on the specs of your reader, which Universal Card Reader have you got? (usually yes, it would be compatible as NTAG203 is fairly common chip) If you don’t have one already, which microcontroller are you controlling the lock with? It shouldn’t matter as most breakouts use standard protocols you can use with just about anything.

That being said, Adafruit recommend this:

> **[PN532 NFC/RFID controller breakout board - v1.6](https://core-electronics.com.au/pn532-nfc-rfid-controller-breakout-board-v1-3.html)**
>
> The PN532 is the most popular NFC chip, and is what is embedded in pretty much every phone or device that does NFC. It can pretty much do it all, such as read and .. read more

Here’s a tute on setting it up. Please let us know if you have any further questions 😄

> **[Adafruit PN532 RFID/NFC Breakout and Shield](https://learn.adafruit.com/adafruit-pn532-rfid-nfc/downloads)**
>
> This is not a full tutorial, it's just a quickstart guide while we do more research into RFID/NFC. There's a lot of info here but not everything is explained in detail. We hope to fill out the tutorial but there's not a lot of good information about...