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This is a robot that can be controlled by a wii nunchuck, or it can navigate on its own. It avoids cliffs with the ultrasonic sensor on the front arm, and it avoids obstances with the front-facing ultrasonic sensor. It has a grabbing device on the front which is powered by a servo. It can go backwards (only with one wheel) using the relay ( I only had one pair of relays). It has a pen for a back wheel, which slides along the ground with relatively low friction. It can be controlled by a wii ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/my-first-robot-30