Trouble with reverse steper motor

[Jeff1]

I am looking a creating a stepper motor with forwards and reverse using arrays however I am having trouble getting it to reverse. What do I need to change to get it to step backwards?

Help with arrays and stepper motor control

There are several ways to do this. An inefficient but instuctive way to do it is with a two-dimensional array of boolean. Acually, we'll use byte, because pin outputs are HIGH and LOW, not true and false (even though they are usually the same thing). const byte stepSequence[8][4] = {   {HIGH, LOW, LOW, LOW},   {HIGH, HIGH, LOW, LOW},   {LOW, HIGH, LOW, LOW},   {LOW, HIGH, HIGH, LOW},   {LOW, LOW, HIGH, LOW},   {LOW, LOW, HIGH, HIGH},   {LOW, LOW, LOW, HIGH},   {HIGH, LOW, LOW, HIGH} }; You'd …

[groundFungus]

What stepper motor and stepper driver? How is the motor powered?

What have you tried (post code and schematic)? What happened ("didn't work" is not an answer)?

Read the how-to-get-the-best-out-of-this-forum guidelines

[Jeff1]

        for (int step = 7; step >= 0; step--) {
      delay(500); 
      for (int pin = 3; pin >= 0; pin--) {
        digitalWrite(stepperPin[pin], stepSequence[step][pin]);

[gcjr]

use the </> to post code

assuming that each 4 value sequence indicates A, A', B, B', i don't think it makes sense for both pairs to have the same state (i.e. A=A' and B=B'

i believe the simplest sequence is just 4 states

    { HIGH,  LOW, HIGH,  LOW },
    {  LOW, HIGH, HIGH,  LOW },
    {  LOW, HIGH,  LOW, HIGH },
    { HIGH,  LOW,  LOW, HIGH }

sequence on left

for such a sequence, reversing the motor requires going backwards in the sequence

i think you were attempting a sequence with half steps

    { HIGH,  LOW,  LOW,  LOW },
    { HIGH,  LOW, HIGH,  LOW },
    {  LOW,  LOW, HIGH,  LOW },
    {  LOW, HIGH, HIGH,  LOW },
    {  LOW, HIGH,  LOW,  LOW },
    {  LOW, HIGH,  LOW, HIGH },
    {  LOW,  LOW,  LOW, HIGH },
    { HIGH,  LOW,  LOW, HIGH },