Hot to build a Dolly for your MFT camera with $10 and your son’s Lego :)

Instructables explaines you how to build a Lego Dolly spending $10 only. And as you can see from the image on top he used it for his E-Pm1. All you need to build it is that stuff:

Stepper Motor Driver ($1.19) [shoplink 48052 ebay]http://www.ebay.com/itm/161304707166?_trksid=p2059…[/shoplink] Arduino Nano V3.0 ($4.76) [shoplink 48053 ebay]http://www.ebay.com/itm/171337374773?_trksid=p2059…[/shoplink] JoyStick ($2.09) [shoplink 48054 ebay]http://www.ebay.com/itm/200955114766?_trksid=p2059…[/shoplink] Remote Switch for Olympus ($2.48) [shoplink 48055 ebay]http://www.ebay.com/itm/300839084245?_trksid=p2059…[/shoplink] 5V DC Relay ($1.00) [shoplink 48056 ebay]http://www.ebay.com/itm/Mini-5V-DC-Coil-Power-Rela…[/shoplink] Cable for Arduino ($1.48) [shoplink 48057 ebay]http://www.ebay.com/itm/40-root-For-a-row-of-Dupon…[/shoplink]

This is the how-to text from Instructables:

I cut the Remote Switch and I soldered Jack 3.5 connectors for use with the Arduino and the remote switch.
The relay I soldered wires to be connected to Arduino. Everything we connect to each other: arduino -> Relay -> jack -> jack connector for Olympus -> and my camera.
Next, I added Stepper Motor Driver to Arduino. To him I joined a stepper motor, and, 5V adapter or battery pack.
Another thing I want to connect the joystick. He will control the speed of the wheels, and frame rate. The rate will be adjusted by tilting the X-axis and Y-axis and after pressing the button, the value will be deducted.
I uploaded code via Arduino program. The program includes both shoot camera and rotating the stepper motor.

More pics:

found via PetaPixel.