i am using drv 8825 for nema 17 ,i connected 12 v supply with 1.2 amp output but i see no response from motor
I moved your post to the “Motor controllers/drivers and motors” section of the forum.
Unfortunately, there is not enough information in your post to offer any meaningful suggestions. I suggest reading our “Support” page (particularly the “What to write” section) to get a better idea of what kind of details would be helpful.
For example, in your particular case, pictures of your setup that show all of your connections, information about what signals you are sending the driver, and any configuration steps you took prior to using the board (i.e. what you set the VREF voltage to) would all be very useful.