The LMC features an indicator LED capable of conveying its current status. The bottom LED serves as the indicator.
LMC Indicator Lights for the updated LMC hardware
Produced after March 2025.
Beginning with LMC hardware revision 2.4.0, the LEDs have been repurposed. Additionally, all three LEDs are now RGB, replacing the previous green-only configuration.
LED Modes
Power LED
Mode | Color | Description |
BOOTING | YELLOW | LMC is booting and main code has not started yet. |
OPERATIONAL | GREEN | LMC main code is running and device is operational. |
LMC Internet connectivity LED
Mode | Color | Description |
UNDEFINED | OFF | LMC has not yet booted up and indicated the status. |
NO_INTERNET | RED | LMC has no Internet access. After some time wifi hotspot will be enabled. |
WIFI_HOST_AP | BLUE | LMC has set up wifi access point for wifi setup or offline configuration. |
INTERNET_ | GREEN | LMC has access to Internet. |
LMC charger status LED
Mode | Color | Description |
UNDEFINED | OFF | LMC has not yet booted up and indicated the status. |
NO_CHARGERS_ | RED | LMC has not been configured over web/offline setup. |
CONFIGURATION_ | YELLOW | One of the chargers has default control channels (i.e. legacy standalone mode) or one of the chargers is not communicating with LMC. |
CHARGERS_ | GREEN | Chargers are communicating with LMC. |
LMC Indicator Lights for the legacy LMC hardware
Produced before March 2025.
Below is a breakdown of the different states and their corresponding LED indications:
No chargers: The LED blinks twice in short bursts (100ms duration) every two seconds.
Idle: The LED toggles at one-second intervals, exhibiting slow blinking.
Active: The LED toggles at 100ms intervals, displaying fast blinking.
When the LED fails to enter any periodic blinking state or exhibits erratic behavior (non-periodic), it signals potential unidentified issues hindering successful program initialization, warranting further investigation.