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:
|Event||Animation||Number of Blinks||Blink sequence [ms]||FW||Notes|
|Startup||1||1780||since 3.119||Signalized only when the Tag is turning on.|
|since 3.119||Signalized when the Tag is turning off.|
Shutdown is also signalized before switch to DFU mode.
|Button push (in STD FW)||1||3||since 3.119|
|Button push (in DFU mode)||3||50-50-50-50-50||since 3.120|
|since 3.119||Tag was reset to the factory default configuration.|
|Switch to DFU mode||32||32-32 down to 1-1 with 1ms step||since 3.120||The tag was switched to Device Firmware Update mode|
|since 3.119||The tag received a new config, that is corrupted.|
|DWM initialization error||6|
|since 3.119||Unable to initialize communication with DWM error. It is signalized in infinite loop.|
|since 3.119||It may be caused by a communication error. However, if the signaling is repeated in a loop, it is an HW error|
|Flash CRC error||4||80-80-80-500-80-80-80||since 3.119||CRC stored in EEPROM do not match the CRC calculated - user setting is corrupted.|
|Low battery (cut off voltage)||4||100-100-100-100-100-100-100||since 3.119|
Once the battery is low, the tag signalize it and then switches to shutdown mode
|Low battery (periodical signalization)||10|
|since 3.125||If the battery is running low, the tag can signalizes it periodically by this code. Optional feature.|
|New config received - NFC||3||50-50-50-50-50||since 3.119||The tag received and applied new config via NFC.|
|New config received - UWB||3||500-500-500-500-500||since 3.119||The tag received and applied new config via UWB.|