User's Manual

Table Of Contents

Operation Description

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SWRU509–February 2017

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SimpleLink™ Wi-Fi

SensorTag

3 Operation Description

At start-up, the SensorTag enters access point mode for 2 minutes. When the SensorTag enters access

point mode, the red LED blinks three times.

NOTE: After 5 minutes, the SensorTag emits a short beep and enters hibernate mode. To wake the

SensorTag from hibernate mode into access point mode, press the power button.

TI recommends using the Watch DevPack (see [9]) with the Wi-Fi SensorTag. The display shows

important status information and technical data that is useful for debugging network settings.

3.1 Downloading the SensorTag App

The SensorTag is available from the Apple

store and the Google Play™ store.

• SimpleLink SensorTag, Google Play store

• TI SensorTag, Apple Store

3.2 Setting Up the SensorTag as an Access Point

Pull the plastic tab on the batteries to power the SensorTag.

NOTE: If the SensorTag has been connected to an access point before, you can reset the Wi-Fi

settings by pressing both buttons on the side simultaneously for 6 seconds.

3.2.1 First-Time Configuration Only

On your mobile phone, go to the Settings menu and connect to the SensorTag-xx access point (see

Figure 3). The -xx value is the two last digits of the SensorTag MAC address; this value is used to

uniquely identify your SensorTag.

Connecting the phone to the access point may take up to 30 seconds the first time it connects.

NOTE: Only one device can be connected to the Wi-Fi SensorTag when it is configured as an

access point. On some phone models, the 4G connection and 5-GHz Wi-Fi must be disabled

to detect the SensorTag as access point.

Figure 3. Example of SensorTag Access Point

To launch the SensorTag app, you may have to pull down the menu in the SensorTag device list to

refresh the device list. The app detects the new Wi-Fi SensorTag. If the SensorTag is programmed with

firmware version 0.98, the app will prompt you to upgrade the SensorTag to the latest version (see

Figure 4). Follow the steps to upgrade the SensorTag.