Is there a list of error conditions for Cannybots/bluebrain. I appreciate that this probably changes given the firmware on the bluebrain. As an example, I've made a few cannybot racers which perform well but have one which shows only a blue M105 (that's the surface mount LED on the left of the cannybot, over the logo and below the ground DC input pin). I'm wondering if the blue light is a "general error" (i.e. something was probably soldered incorrectly cough) or a "no firmware error" (i.e. upload the firmware), or some other error condition.
There's is no error list and the LEDs don't indicate error conditions.
The LEDs are connected to the UART TX/RX pins and are also connected to the Motor driver 'direction' pins. They only flash on serial transfers and turn on or off depending on each motors set direction.
Was your bot connected to the serial USB stick at the time? UARTs pull the TX/RX pins high.