About the WeDo

The Lego WeDo is a tethered-over-USB sensing and robotics toolkit produced by Lego for the educational market.

It's gotten lots of press, including a favorable review on the One Laptop Per Child blog, on deployments and training in Peru.

It's supported by Scratch(on Windows and OSX) and by Lego's proprietary software(on Windows.)

It prominently features the LB1836 motor driver and the LM358 op-amp, as well as an epoxy blob with USB support.

The digital communication protocol used by the Power Functions system is documented on Philo's Awesome Page.

Requirements

Python 2.7+
pyusb (setup.py should take care of installing the dependency)

Installation

From pypi:

pip install wedo

From the source tree:

./setup.py install

How to Use it

>>> from wedo import WeDo
>>> wd = WeDo()
# Activating the first motor full forward:
>>> wd.motor_a = 100
# Activating the second motor half speed/force backward:
>>> wd.motor_b = -50
# Current value of the tilt sensor:
>>> wd.tilt
# Current distance value in meters of the distance sensor:
>>> wd.distance