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I came to robotics late in life, although I have always enjoyed science fiction, but I thought I would like to try building a robot. Using two microswitches, two motors, four AAA batteries and a breadboard I put together the little bot shown in the picture. This could navigate a passage, but it had difficulty in a simple maze as it got stuck in corners since it couldn't reverse. I added two n/o n/c relays and this gave it individual motor reversing so I could leave it working a maze unaided At ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/my-first-robot-34