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Alex Louden has released an open-source template for custom 3pi expansion boards for use with the Eagle PCB design software. The picture shows an example expansion with an mbed microcontroller, Xbee, and accelerometers.
Featured link: http://alexlouden.com/2010/3pi-pcb-skeleton/
This simple obstacle-avoiding robot by forum user TomatoWire is based on the Maestro and uses continuous-rotation servos and distance sensors. The robot is programmed using the Maestro’s internal scripting language, without the need for an additional microcontroller.
Featured link: http://forum.pololu.com/viewtopic.php?f=2&t=2756
AIRbot is a robot that can be controlled by a cellphone and can send images back to the cellphone. It uses a yellow RP5 tracked chassis, a transparent clear RP5 expansion plate, and a qik 2s9v1 dual serial motor controller along with the AIRcable S.D.K. and the AIRcable OptiEyes. The source code (both AIRcable and Nokia) and circuit diagrams are freely available.
Featured link: http://wiki.opensensors.org/airbot
In this project, an HD camcorder sits on a pan/tilt mount controlled by a Micro Maestro 6-Channel USB Servo Controller. A Wiimote is used to track an IR light source. Here is a video taken from the mounted camcorder:
Featured link: http://helifreak.com/showthread.php?p=1868143#post1868143
This instructable shows how to power an Arduino through the Pololu Pushbutton Power Switch and use the self-shutoff feature.
This replica of the famous Star Wars droid R2D2, built by Glenn Pipe, uses a Jrk USB motor controller for position control. The video below shows how Glenn uses the Jrk Configuration Utility to control and analyze his system, and his blog post has more information.
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