Difference between revisions of "Installation of WeDo Python Support"
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| + | == Up == | ||
| + | |||
| + | [[Lego WeDo]] | ||
| + | |||
== Reference == | == Reference == | ||
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== Software Dependancies == | == Software Dependancies == | ||
| − | Some or all of the following are required. | + | Some or all of the following are required. Several were install in desperation to solve problems below. |
<pre> | <pre> | ||
| Line 11: | Line 15: | ||
aptitude install python-dev | aptitude install python-dev | ||
aptitude install python-usb | aptitude install python-usb | ||
| + | aptitude install python-serial | ||
aptitude install git | aptitude install git | ||
</pre> | </pre> | ||
| − | == Standard install for WeDo Library - | + | == Standard install for WeDo Library - Failed == |
<pre> | <pre> | ||
| Line 77: | Line 82: | ||
>>> | >>> | ||
</pre> | </pre> | ||
| + | |||
| + | From the Klaig site | ||
| + | |||
| + | To install it: | ||
| + | pip install wedo | ||
| + | |||
| + | To initialize it if you have a single device: | ||
| + | >>> 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, you can find the matching constants FLAT, TILT_BACK, TILT_FORWARD, TILT_LEFT, TILT_RIGHT in the wedo package: | ||
| + | >>> wd.tilt | ||
| + | 3 | ||
| + | Current distance value in meters of the distance sensor: | ||
| + | >>> wd.distance | ||
| + | 0.21 | ||
Latest revision as of 12:38, 12 May 2013
Contents
Up
Reference
- [Klaig]
Software Dependancies
Some or all of the following are required. Several were install in desperation to solve problems below.
aptitude install python-pip aptitude install python-dev aptitude install python-usb aptitude install python-serial aptitude install git
Standard install for WeDo Library - Failed
pip install wedo
A possible workaround for the missing CHANGES.rst file.
cd build/wedo/ cat one two three > CHANGES.rst python setup.py install
Workaround install for WeDo Library that was Used
The CHANGES.rst file is present in this method.
git clone git://github.com/itdaniher/WeDoMore.git cd WeDoMore/ sudo python setup.py install
Fixing the Missing usb.core
This is the symptom.
sudo python
>>> from wedo import WeDo
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/wedo-1.0.0-py2.7.egg/wedo/__init__.py", line 8, in <module>
import usb.core
ImportError: No module named core
The problem is an old version of pyusb. It should be 1.0 or greater. pyusb fix link I found it at: [1]
unzip pyusb-1.0.0a3.zip
cd pyusb-1.0.0a3/
sudo python setup.py install
ls /usr/local/lib/python2.7/dist-packages/
easy-install.pth pyusb-1.0.0a3.egg-info usb wedo-1.0.0-py2.7.egg
Example Run
Python support for the Lego WeDo kit: [Klaig]
sudo python Python 2.7.3 (default, Jan 13 2013, 11:20:46) [GCC 4.6.3] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from wedo import WeDo >>> wd = WeDo() >>> wd.motor_a = 100 >>> wd.motor_a = 0 >>>
From the Klaig site
To install it: pip install wedo
To initialize it if you have a single device:
>>> 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, you can find the matching constants FLAT, TILT_BACK, TILT_FORWARD, TILT_LEFT, TILT_RIGHT in the wedo package:
>>> wd.tilt 3
Current distance value in meters of the distance sensor:
>>> wd.distance 0.21
