Build the Lego garage house
Collect the required Lego bricks and garage door and build the garage
Add the rotating Lego pole
At the back of the garage, add the rotating Lego pole and atttach the Lego wire to it.
Connect wire to garage door
Connect the Lego wire to the back of the garage door with some scotch tape.
Connect DC motor to the Lego pole
Connect the tethered DC motor to the Lego pole, using the motor mate.
Build a small Lego construction around the motor, to keep it in its place.
Connect the DC motor to the wireless receiver.
Set the DC motor in the 'var' mode, so that you can make the Lego pole turn both ways.
Build the remote control
Build the remote control with a battery and a slide dimmer and the wireless transmitter.