User Guide

BT Tag GUIDE 4.8
Proprietary and Confidential
2.4.1 Button features
The BT Tag has one physical button which handles the base function of the Tag, such as activating the device and
sending beacons. Depending on the way the button is pressed, one of the cases will apply:
• No press – when the button is not pressed and no movement is detected, the Tag is in sleep mode
in order to save power.
• Short press – serves for device activation, meaning that when the button is pressed for at least
100ms and less than 3000ms, you will wake up the Tag and send a Beacon Event signal
• Long press – the long press serves for device activation, meaning that if the button is pressed and
hold for 3000ms, the device will be powered up
2.4.2 LED features
The BT Tag has LED which can blink in red or green and gives various information about the device. Please see below
the meaning of each color:
• Red – depending on the status, the red LED will appear in case of:
o Low battery – LED blinks 3 times every 20 seconds
o Accelerometer no response – LED blinks in red 10 times
• Green – depending on the status, the green LED will appear in case of:
o Button is pressed to send a beacon – LED blinks 3 times
o Power on device – LED blinks once for 2 seconds
• No color – Tag is in sleep mode to save power
3. Detailed operation
The following chapter presents the technical details of the functionality and operation of the Tag. The supported
beacon types and their transmission is included in the following subchapters.
3.1 Functionality
Once the Tag is powered on, it is ready to send beacons. There are two possible options for sending a beacon:
• Movement detection
• Pressing the button
The first and main option is implemented in order to save power on the device. The movement detection feature is
controlled by the accelerometer which determines the movement and duration. This means that as soon as a
movement is detected, the Tag wakes up from sleep mode and immediately sends a Beacon Event. The Beacon Event
consists of 4 TX burst which are sent every 10 seconds during movement detection. Out of all 4 broadcasts, only one
will be detected and displayed on the UI. The transmission will continue until no movement is detected for 30s,
meaning that if the item/person stops at one place for more than 30s, the Tag will send a last Beacon Event and stop
transmitting until the next movement has started.