Starter robot autonomously navigates with a $2 microcontroller.

By Doug Paradis

In early 2011 my robot club, the Dallas Personal Robotics Group (, was looking for a way to help our beginning members build up their skills. To this end, we produced a series of lessons covering 5 topics needed to make a simple, programmable robot: making PCBs with the toner transfer method, programming ATtiny microprocessors, laying out circuit boards using KiCAD, using Inkscape to design robot parts, and programming state machines. Videos of these lectures are available on DPRG’s website.

The Tiny Wanderer is the starter DIY robot model we ...

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