1 Introduction
1.1 Purpose& Description
DSBC-230-AOA is a rechargeable AOA Tag, suitable for personnel positioning. The product is developed based on the EFR32BG22C224F512GM32-C chip of SILICON LABS, which has excellent functions of ultra-low power consumption. At the same time, the product is equipped with an accelerometer, a LED and a button.
1.2 DSBC-230-AoA Tag Features
| Product size | 90mm×55.5mm×7.5mm |
| Product color | Black |
| Main IC | EFR32BG22C224F512GM32-C |
| Wireless protocol | 2.4G |
| Tx power | Max 6dBm, default Tx power is 0dBm |
| Battery Type | Lithium battery 700mAh |
| Operating Voltage | 3.0~3.7V |
| Operating Temperature | 0 ~ +45°C |
| IP Protection | IP20 |
| Button function | Turn on/off Device |
| Working current | 360uA (@0dBm, at 100ms broadcast interval) |
| Battery life | 60 Days (@0dBm, at 100ms broadcast interval) |
| Low voltage alarm | When less than 3.2V |
2 Appearance
3 Hardware Design
3.1 PCB Diagram of DSBC-230-AoA Tag
3.2 LED Indication of DSBC-230-AoA Tag
| When Device is charging | LED flashes every 3 seconds per time |
| When Device is fully charged with charger connected | LED keeps light on, if charger is removed ,then LED is off |
| When Device is being turned on | LED flashes 3 times at 1 Hz frequency |
| When Device is being turned off | After user presses and holds button for 2 seconds, LED keeps light on for 3 seconds and then flashes 2 times at 2Hz frequency |
| Low voltage status | LED flashes every 5 seconds per time until it is turned off or being charged again, if button is pressed during this period, stop flashing and priority to indicate the button action until the button action is done, then continue flashing every 5 seconds per time |
3.3 Button Function of DSBC-230-AoA Tag
| Turn on Device | Click the button when Device is not being charged |
| Turn off Device | Press and hold the button for 5 seconds when Device is not being charged |
4 Software definition
AOA Beacon broadcast:
When the AOA Tag is in state of motion, AOA broadcast interval is 100ms.
When the AOA Tag is in stationary state, AOA broadcast interval is 2000ms.
Reset:
Once BLE Tag is being charged, it will reset automatically.
5 When Using with a Gateway (AoA Locator)
Before using the tags, please make sure that you have clicked the button to turn on the tag device.
DSBC-230 BLE Tags is designed to work with Bluetooth gateways (mainly AoA Locator) to achieve asset and personnel location tracking function, in order to ensure the positioning accuracy and stability.
At least two AoA Locators should be in work at the same time. Before using the DSBC-230-AOA Tag, users should enter the Tag’s Mac address into the positioning system platform.
