HEBOT I, II & III – John FitzGerald 1979-80 (British) - - Hobby Electronics magazine (November 1979-January 1980) describes an autonomous robot. HEBOT is a free roaming robot which can negotiate obstacles, steer towards a light (infra red) and follow a wire (A.C. current) around your home. HEBOT emits a squeak when it detects light or following a collision. Control is transferred to the wire following circuitry unless HEBOT encounters an abstacle. HEBOT also has a microphone, and can be wired to go into reverse, spin, or just stop. HEBOT's 'random walking' is a bit of a misnomer, as it actually executes a series of spirals.