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Hornby (named for the guy who invented Meccano) is an autonomous line-following robot cobbled together from minimal parts. It is my first effort at a small-scale robot, and I hope it will help me refine my knowledge of what the Arduino is capable of on a minimalist level. The key ingredient to Hornby's operation is a custom-built IR sensor circuit, which uses three pairs of "Infrared LED Emitter and Detectors" from Radioshack (part #276-142 for all those who frequent the Shack). The "emitter" ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/hornby-the-line-follower