stepper motor | Electronics › Electronics › stepper motor This topic has 1 reply, 2 voices, and was last updated 9 years, 5 months ago by Ashutosh Bhatt. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts April 7, 2014 at 6:01 am #3024 UdithParticipant Is stepper motor require 4 input signals to run in forward direction April 8, 2014 at 7:42 am #11504 Ashutosh BhattParticipant yes. for bipolar or unipolar motor there are four coil terminals. in unipolar motor there are two common terminals that are connected to +vcc or gnd. in bipolar there are only four coil terminals Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In