With my Mousey the Junkbot project in MAKE and Solarbotics’ Herbie the Mousebot hogging the limelight, folks might forget or be unaware of the fact that the original LM386-based Herbie circuit was a line-follower, not a photovore (light-seeker). Peterman921’s MouserV2 is a two-time line-following champ. It uses the LM487 audio amp chip and two downward-looking CdS eyes with blinders. And, of course, there’s no 5v relay or bump sensors ’cause Mouser doesn’t need to back up or avoid obstacles.
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