The Core Controller features a programmable RGB status LED. When running the official firmware, this LEDprovides real-time visual feedback on the controller's status—such as connection type, identification process,and error warnings—through specific color and blink patterns. The table below lists the default LED indicators and their corresponding system states.
Note: When running a custom program, the LED behavior may be defined by user code and may not reflect
the default status indicators shown below.
¶ Loader Blink Codes
The loader is the low-level program on the Core Controller used for firmware updates. The Core enters loader mode only when a firmware update is in progress.
| Status | LED Pattern | ||
|---|---|---|---|
| 1 | Firmware update error | Red（0xFF0000）constant on | |
| 2 | Firmware update pending start | White（0xFFFFFF）constant on | |
| 3 | Firmware update in progress | White（0xFFFFFF）flashing at 10Hz |
¶ Firmware Blink Codes
The firmware serves as the runtime framework for both official and custom projects. CyberBrick firmware is a customized extension of MicroPython, enabling control and communication between modules.
| Status | LED Pattern | |
|---|---|---|
| 1 | Power on | Green（0x00FF00）constant on |
| 2 | Bluetooth connected only | Blue（0x0000FF）constant on |
| 3 | 2.4G connected only | Yellow（0xFFFF00）constant on |
| 4 | Bluetooth and 2.4G both connected | Blue（0x0000FF）Yellow（0xFFFF00）Alternating Blink at 0.5Hz |
| 5 | Configuration file transmitting | Blue（0x0000FF）blinking at 5Hz |
| 6 | Quick identification("Find my Core") | Green 0x00FF00）blinking at 1Hz for 5sec |
| 7 | Firmware Key Partition corrupted | Red（0xFF0000）blinking at 10Hz |
| 8 | MPY stopped running(including error, crash, and entering REPL) | Purple（0xFF00FF）blinking at 1Hz |
¶ End Notes
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