ESPeasy has support for both the Wemos motor shield and the Adafruit motor shield. At the moment only the Adafruit shield is supported for stepper control and is using i2c communication, just like the Wemos shield. There has been some very good work done on development of stepper control using the W...

Take a look here :

https://www.letscontrolit.com/wiki/inde ... ield_v2%22

There has been some good development done here.