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L-R: Speedy, Stepper & Yellow motor versions
The base version – Arduino with stepper motors. This shows line follower sensors.
Yellow motors – fast but no position sensing
N20 motors – more expensive & fast enough for the speed freaks, but no position sensing
From kit to built ‘bot
The kit builds this, includes USB cable, screwdriver and spare on/off jumper
The kit and summary build leaflet