Tag LED Indication


Tag Leonardo is equipped with LED. The LED light signal has a different meaning which can provide you information about any possible issue present or standard behavior is processed correctly.

It is necessary to recognize them correctly to understand the state your Tag is currently in.


The table below includes all Tag's blink codes:

EventAnimationNumber of BlinksBlink sequence [ms]FWNotes
Startup

11780since 3.119Signalized only when the Tag is turning on.
Shutdown

11

20-30-40-50-60-70-80-90-100-

110-120-130-140-150-160-170-

180-190-200-210-220

since 3.119Signalized when the Tag is turning off.
Shutdown is also signalized before switch to DFU mode.
Button push (in STD FW)

13since 3.119
Button push (in DFU mode)

350-50-50-50-50since 3.120
Factory reset

5

190-180-170-160-150-140-130-

120-110

since 3.119Tag was reset to the factory default configuration.
Switch to DFU mode

3232-32 down to 1-1 with 1ms stepsince 3.120The tag was switched to Device Firmware Update mode
Corrupted setting

5

100-100-100-100-100-100-100-

100-100

since 3.119The tag received a new config, that is corrupted.
DWM initialization error

6

222-100-100-100-100-100-100-

100-100-100-100

since 3.119Unable to initialize communication with DWM error. It is signalized in infinite loop.
EEPROM/NFC error

12

250-250-250-250-250-250-250-

250-125-125-125-125-125-125-

125-125-250-250-250-250-250-

250-250

since 3.119It may be caused by a communication error. However, if the signaling is repeated in a loop, it is an HW error
Flash CRC error

480-80-80-500-80-80-80since 3.119CRC stored in EEPROM do not match the CRC calculated - user setting is corrupted.
Low battery (cut off voltage)

4100-100-100-100-100-100-100since 3.119

Once the battery is low, the tag signalize it and then switches to shutdown mode

Low battery (periodical signalization)
10

20-20-20-20-20-20-20-20-20-20

-20-20-20-20-20-20-20-20-20

since 3.125If the battery is running low, the tag can signalizes it periodically by this code. Optional feature.
New config received - NFC

350-50-50-50-50since 3.119The tag received and applied new config via NFC.
New config received - UWB

3500-500-500-500-500since 3.119The tag received and applied new config via UWB.