That's what happens when you buy it as an add-on to a "home automation system," also known as license to pull money out of non-technical people's pockets. Then

That's what happens when you buy it as an add-on to a "home automation system," also known as license to pull money out of non-technical people's pockets. Then again seeing how the hardware part jwz did do went for him, it's probably better he did get a purpose-built motor and microcontroller in a casing.