Data Sheet

How to use USPACE-KYD-2F
3.4 Low Battery
When the battery is low, the LED makes a single orange blink on every battery measurement
(default every minute). The device continues functioning in the current mode.
If critical low battery level is detected, the device degrades to deepsleep mode and can only be re-
enabled by charging the battery above the critical low level.
If the battery level drops below the microcontroller’s brown-out reset (BOR) level, the device shuts
down. It can only be re-enabled by charging the battery above the critical low level.
Though the firmware provides maximum protection against power loss, in particular the
power consumption drops to a few µA in deepsleep mode, it is highly recommended to avoid
discharging the battery below the BOR level, as it may damage the battery.
Unplugging the battery is strictly prohibited, as it may corrupt the device FLASH memory or
damage it beyond repair.
3.5 Sleep
When autosleep is enabled and the device is motionless for a certain period, the tag stops
monitoring and switches to sleep mode. It remains accessible for configuration updates. Monitoring
resumes when motion is detected.
The device can be forced to sleep mode (aka maintenance mode) through the advanced
configuration interfaces.
3.6 Monitoring
When the device is not in a low power mode (deepsleep, sleep) or charging mode, it is in
monitoring mode. The tag scans and measures dstances to other tag in its vicinity according to the
description in 2.2. When an “Start Alert” event is detected, the tag starts blinking in RED, vibrates
in pulses and plays a dual-tone buzzer.
WIZZILAB Technical datasheet 10/20