This module standardizes the handling of status LEDs.

• All low-voltage boards with MCUs have the same status LED connections (heartbeat, connection, error)
• The heartbeat LED (blue) should blink at a steady rate to indicate the system is alive and running.
• The connection LED (amber) should remain on when the system is actively receiving data from the CAN bus, and off otherwise.
• The error LED (red) turns on when the system detects a fault condition, and off otherwise.