Stepper Motor

[Cityslicker]

I have a Kincony KC868 A16 board and want to control a stepper motor with variable speed.

I have connected the board up to the stepper motor driver, software works with another ESP32 board. 

But I do not get a pulses out of the GPIO pins. 

Do I need to set any other parameters to get the pulses out of the GPIO pins ?

Thanks

[admin]

KC868-A16 output use by PCF8574 i2c chip. not use by ESP32 pin directly.

[Cityslicker]

KC868-A16 output use by PCF8574 i2c chip. not use by ESP32 pin directly.

Thank you.