Once the library has installed, we can start up a Python command line and try a few commands to get the motors running. Type the following command to start an Interactive Python session.
from rrb2 import * rr = RRB2() rr.forward()
If you have a very old revision 1 model B Raspberry Pi then change the second line to: rr = RRB2(revision=1)
To stop the motors again, enter the following line:
rr.stop()
To set the motors running forward for 5 seconds, use the command:
rr.forward(5)
To set the motors running forward at half speed enter the following command:
rr.forward(0, 0.5)
As well as forward try experimenting with the commands reverse, left and right, which work in just the same way as forward.
Page last edited September 19, 2014
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