Activation

Activate and verify the Viking Slim Wirepas tag using NFC

Before you start

Make sure NFC is enabled on the phone used for activation. Use one of these supported setups:

An NFC-capable iPhone with the Haltian Field app
An Android device with the NFC Tools app by Wakdev, or another NFC read/write application capable of writing a text record to the tag

There are two ways to activate the tag: using a magnet, or using a phone’s NFC functionality.

Activate the tag with a magnet

Place a magnet at the middle of the front of the tag.
The tag LED blinks to indicate activation.

Activate and verify with the Haltian Field app (iOS)

Open the Haltian Field app and use its NFC tag function.
Select Switch ON to activate the tag, or Switch OFF to deactivate it.
Use Read to check the current status reported by the tag.

Activate the tag with NFC Tools (Android)

Open NFC Tools on the Android device.
Hold the tag against the back of the phone so the app can read its technical data.
Open the Write tab and select Add a Record.
Select Text and enter start in lowercase.
Make sure there is no trailing space after start.
Select OK, then select Write.
When the app displays Approach NFC Tag, hold the tag against the back of the phone again.
Confirm the activation by checking that the tag LED flashes.

The NFC transmitter location varies between phone models, so move the tag across the back of the phone if it is not detected immediately.

Alternative NFC apps

NFC Tools is the documented reference app, but any Android NFC app that can read a tag and write a plain text NDEF record should work. Write the text start exactly as described above, since activation depends on the record content, not the specific app used.

Verify activation

Use the Read function in NFC Tools (or the Haltian Field app on iOS) to read the tag values. The activation is successful when the status is On.

Reading and writing can be repeated as needed. The installation guide states that repeating these operations does not damage the tag.