Program your NFCKEY with NXP® TagWriter

The NFC TagWriter app by NXP® allows writing tags, adding business cards, storing contacts, bookmarks, pairing with Wi-Fi, or Bluetooth®, enabling hotspots, sending text messages and much more all with just a tap.

Learn more about the app here

1. Launch the app

2. Tap Write Tags

3. Tap New dataset

4. Choose what type of record you want to add. Here are some options this app offers, explained:

• Business Card – Stores contact details. When scanned, the user can save the contact to their phone.
• Link – Stores a URL. When scanned, it opens the website in the browser.
• WiFi – Stores WiFi network credentials (SSID and password). Allows compatible devices to connect automatically.
• Bluetooth – Stores Bluetooth pairing data. Enables quick device pairing.
• Email – Creates a pre-filled email draft (recipient, subject, message).
• Telephone Number – Stores a phone number. Prompts the user to place a call.
• Geo Location – Stores GPS coordinates. Opens the location in a map application.
• Launch Application – Opens a specific app installed on the device.
• Plain Text – Stores simple readable text with no automatic action.
• SMS – Creates a pre-filled SMS message (number and message text).

In our case, we will be adding a link to our website, so we will choose the "Link" option

After you chose the type of record you want to add, input all the necessary information into the app.

To add the website link:

1. Add URL link that you want to open when NFCKEY is tapped on a phone

In our case, we will be adding data for our website (https://www.nfckey.com/).  

2. Double-check the spelling to ensure all details are accurate

3. Press Save & Write

1. After you've pressed Save & Write, select options based on your needs on the next screen:

• Write multiple NFC tags - if you are encoding multiple NFCKEYs
• Confirm overwrite - allow the app to overwrite any existing data on the keychain with new data
• Add launch application - add an app that launches when the NFCKEY is tapped on a phone

2. Press Write again

3. Hold your NFCKEY close to the phone’s NFC sensor (the sensor is typically on the back panel of the phone, right next to the camera)

4. Wait for confirmation that writing is complete

Once you have written the chosen information on the NFC keychain, check its accuracy to see if any changes are required.

1. Tap your NFCKEY to your phone (like any other NFC card) or another NFC-enabled device 

2. Check that all contact details or links open as programmed

3. If you notice that you made a mistake or want to change any information, proceed to Step 6. If not, you are done!

In our case, the link has been saved successfully and it appears on the phone screen when NFCKEY is tapped on the phone.  

And you’re done!

If you want to update the information or you notice that you made a mistake, you can easily do so in the same app.

Just repeat Steps 2-5 and ensure you tick Confirm Overwrite to overwrite any existing data.

The NFC TagWriter app by NXP® allows writing tags, adding business cards, storing contacts, bookmarks, pairing with Wi-Fi, or Bluetooth®, enabling hotspots, sending text messages and much more all with just a tap.

Learn more about the app here

1. Launch the app

2. Tap "New"

3. Choose what type of record you want to add. Here are some options this app offers, explained:

• Business Card – Stores contact details. When scanned, the user can save the contact to their phone.
• Link – Stores a URL. When scanned, it opens the website in the browser.
• WiFi – Stores WiFi network credentials (SSID and password). Allows compatible devices to connect automatically.
• Bluetooth – Stores Bluetooth pairing data. Enables quick device pairing.
• Email – Creates a pre-filled email draft (recipient, subject, message).
• Telephone Number – Stores a phone number. Prompts the user to place a call.
• Geo Location – Stores GPS coordinates. Opens the location in a map application.
• Launch Application – Opens a specific app installed on the device.
• Plain Text – Stores simple readable text with no automatic action.
• SMS – Creates a pre-filled SMS message (number and message text).

In our case, we will be adding a link to our website, so we will choose the "Link" option

After you chose the type of record you want to add, input all the necessary information into the app.

To add the website link:

1. Add the "Description" and "URI data" that you want to appear when NFCKEY is tapped on a supporting device

In our case, we will be adding data for our website (https://www.nfckey.com/).  

2. Double-check the spelling to ensure all details are accurate

3. Press "Save & Write"

If your records saved successfully, you will see a screen specifying the type of record and its size.

After you successfully added the necessary information into the app, it's time to write it on to the NFCKEY!

1. Press "Save & Write" again

2. Hold your NFCKEY close to the phone’s NFC sensor (the sensor is typically on the back panel of the phone, right next to the camera)

3. Wait for confirmation that writing is complete

Once you have written the chosen information on the NFC keychain, check its accuracy to see if any changes are required.

1. Tap your NFCKEY to your phone (like any other NFC card) or another NFC-enabled device 

2. Check that all contact details or links open as programmed

3. If you notice that you made a mistake or want to change any information, proceed to Step 6. If not, you are done!

In our case, the link has been saved successfully and it appears on the phone screen when NFCKEY is tapped on the phone.  

And you’re done!

If you want to update the information or you notice that you made a mistake, you can easily do so in the same app.

1. Go to the app's Main Menu

2. Click the "My Datasets" section

3. Pick the dataset you want to edit

4. Click "Edit"

5. Input the new information, repeating Steps 3-5 above