Hey Lady Ada,
I know for fact that I have overpowered my shield with a 24v Stepper that programs at 1amp and peaks at 2amps. I heard a loud crackle, turned off the arduino decimilia immediately and found that the shields LED to be blinking. I now realize that stacking driver chips will allow more current flow preventing this from happening again. However, I'd like to know if this board is still useable and if I replace the chip with a new one, stacked, will it still work? The driver chip itself was smoking and has a mildly melted core. Everything else seems to look fine.
I have three questions:
1. What does the blinking LED mean?
2. Will replacing the chip do the trick?
3. Can I stack(piggy) 3 chips high (instead of just 2) on either side so that everything runs cool?
(Because I'm in a rush to finish this, I have ordered another board via adafruit (nextday air). Can you make sure my order makes it out tomorrow?)