NASA’s Mars rover Curiosity reminded me of my fascination with robots! I wonder when will I be able to build car-sized versions of these mini robots of mine: the ETENYR1, ETENYR2, and ETENYR3 
Eteny R1 remote-controlled robot with proximity sensors for avoiding obstacles (left), Eteny R3 mini racer comparator-based line-following robot (center), Eteny R2 line-following robot with proximity sensors for avoiding obstacles (right)
To see these robots in action, click here.
