Bi - polar Stepper motor control using a L293D interfacing with an Genie E28

Thread Starter

Neil Houston

Joined Feb 12, 2015
Hi I am currently struggling to get my stepper motor working using the L293D with the Genie E28. I need to allow the stepper motor to go move in a clockwise motion but when a switch (D3) is pressed turn anti-clockwise.

The motor is activated using different switches to allow different speeds, D0, D1 and D2 are used for this, slow, medium and fast speeds. There is also a variable resistor (A0) which is used as an alternative to the digital inputs although with the same principle, where the speeds are indicated by the analogue signal, 30-100 -Slow, 101-170, Average and 171-255 - fast.

The LCD and LEDs just displays what speed setting it's on.

Have I connected the L293D in the correct configuration? As nothing happens when the activation buttons are pressed.

Thanks for your time