Grbl Shield LEDs stay lit

[LarryM]

@JamesTyree

Take a look at this thread:

[Reference thread] Yes, it's flashy but what does it mean? (gShield LEDs)

Here is some information to help those bringing up their X-carve for the first time. The blue LED on the gShield indicates when the motor voltage is present on the power input terminals of the gShield. LED on = motor voltage present. LED off = no motor voltage present. Each stepper motor driver IC on the gShield supplies power for two coils within the bipolar stepper motor. The voltage applied to each coil can be reversed by the stepper motor driver. So, take the black/green coil, for example.…