In this tutorial I will show you how to control a stepper motor with FOUR control wires and a L293D IC. You can use everything you want in order to generate control signals. In this tutorial I used an Arduino board, but a PIC is also ok.
Why "FOUR" control wires? because everyone who writes a tutorial or something else about bipolar stepper motors wants to control them with only TWO wires and a lot of components (NPN transistors, resistors ecc ecc). But controlling a L293D with 4 wires is simpler!
ok, let's see the circuit:
How does the L293D work?
