This video teaches you

How to Build a Robot at Home

To build a simple robot that can move on its own, purchase a starter kit, or assemble the components you need from an electronics supplier. You'll need a microcontroller, the small computer that will serve as your robot's brain; a pair of continuous rotation servos to drive the wheels; wheels that fit the servos; a caster roller; a small solderless breadboard for building your circuits; a battery holder; a distance sensor; a push button switch, and jumper wires. Affix the servos to the end of the battery pack with double-sided tape or hot glue, making sure the the rotating ends of the servos are on the long sides of the battery pack. Attach the breadboard to the battery pack next to the servos with the tape or hot glue. Place the microcontroller on the flat space on top of the servos and affix firmly there. Press the wheels firmly onto the spindles of the servos. Attach the caster to the front of the breadboard. The caster spins freely, and acts as the front wheel of the robot, making it easy to turn and roll in any direction. Plug the distance sensor to the front of your breadboard. Wire up your robot, connecting the servos, microcontroller, switch and battery pack to your breadboard. Connect your microcontroller to a computer via a USB cable. Upload a basic control program from your computer to the microcontroller. This robot can go forward, backward, stop, and turn away from obstacles. Test your robot on a smooth flat surface, and experiment to see what you can make it do.

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