A4988 Issue

I have 5V between logic GND and power GND. When connect them get a little warm without load(motor).
Is there something to do or is burned? motor don’t turn.


It is not clear from your description how you have things connected. Can you post some pictures or a connection diagram showing your setup? Also, how are you measuring the output of the A4988 stepper motor driver carrier’s pins?


From your description you are APPLYING 5V across the two ground pins. Is that correct?
You should have the 5V to GND and VDD.