How to Build a Radio-Controlled Robot

Remote control is still the most direct way to control a robot.

Robots are fast becoming more prevalent in modern society due to advances in miniaturization of electronics and technology. Still, one of the most popular methods of robotic control is by radio frequency--making the robot still operable by human hands, though at a distance.

Luckily, those same advances in miniaturization and technology make it possible for ordinary citizens to design and build their own remote-controlled robot, with fairly impressive results, using readily- and cheaply-available tools and materials.

Things You'll Need

• 4-inch by 4-inch panel of hardwood
• Two 6-volt DC hobby motors w/ rubber wheels
• Free-rotating rubber wheel
• 12-volt battery pack and batteries
• Electrical tape
• 2-channel remote-control circuit w/ remote
• Insulated copper wire

Instructions

1. Position the DC motors across from one another on the edge of the hardwood panel. Line them up and secure them with their included mounting hardware.

2. Mount the free-rotating wheel at the leading edge opposite your DC motors, making sure it is centered as nearly as possible. This will be the front of your robot.

3. Mount the 12-volt battery pack, without the batteries, in the center of the wooden panel and secure it with electrical tape.

4. Attach the RC circuit to the rear of the robot, between the motors if possible, and secure it with its including mounting hardware and/or electrical tape.

5. Wire the battery pack's positive and negative outputs to the RC circuit's respective power inputs. Secure the connection with small strips of electrical tape.

6. Run one length of insulated wire from the RC circuit's positive and negative outputs to the respective inputs of the motors. Secure the connection with electrical tape.

7. Insert the batteries into their mounted battery pack. Your robot will now begin to respond to radio commands from your remote control.

References

• How to Build a Robot Tutorial