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This Robot Bug is very elegant. It has an Arduino for a brain and PING sensors for the eyes.Â
“Software is quite straight forward, a giant state machine, that takes input from the sensor, every now and then. halfbug has 5 different movements, one regular forward movement, one turn (left and right) and one turn hard (left and right). In addition to that halfbug has a head movement (left-right-straight) or looks left when turning left. Both, leg and head movement is controlled by separate sub-state machines.”