Theory
đ¤ 13. Working of Robot đ
The robot shown in the image is a typical educational DIY (Do-It-Yourself) robot kit that has been fully assembled. Here’s how it generally works:
Power Supply:
- đ The batteries provide the electrical power needed to run the motors, sensors, and control board.
Motors and Wheels:
- đ The robot moves using DC motors connected to the wheels. These motors convert electrical energy from the batteries into mechanical energy, which turns the wheels and propels the robot.
Control Board:
- đĄ The main control board (often an Arduino or similar microcontroller-based board) acts as the brain of the robot. It processes the input from sensors and remote-control signals and sends output signals to the motors.
Ultrasonic Sensor:
- đ Mounted at the front of the robot, this sensor measures the distance to obstacles. It emits ultrasonic waves, and when these waves bounce off an object and return to the sensor, it calculates the distance based on the time taken for the echo to return. This helps the robot avoid collisions.
IR Receiver:
- đĄ This receives signals from a remote control, allowing a user to manually control the robot’s movement or other actions.
Servo Motor:
- đ The blue component looks like a servo motor, which can be used to adjust the orientation of a sensor or another part of the robot with precision.
Wiring:
- đ The wires distribute power and signals throughout the robot. The red and black wires typically carry power, while other coloured wires might carry control signals between the control board and the sensors or motors.
Chassis:
- đĄī¸ The black base holds all the components in place and provides structural support.
IR Line Sensor:
- đŖī¸ If the robot is equipped with a line sensor (not clearly visible in this image but commonly included in such kits), it would be used to follow lines or patterns on the ground. It works by detecting the contrast between the line colour and the surrounding surface.
Programming:
- đģ Before it can operate, the control board needs to be programmed with instructions on how to respond to sensor inputs and how to control the motors. This is done using a computer and a programming language compatible with the control board.
When the robot is powered on, the control board will execute the loaded program, which could allow the robot to perform tasks like following a line on the floor, navigating around obstacles, or being controlled by a remote.
Let’s get started!
Unboxing Your Cligo Kit:
- đĻ Open your Cligo kit and lay out all the parts on a clean surface.
- đ ī¸ Identify each part using the manual. You should have motors, wheels, a line sensor, a servo motor, batteries, and more!
Assembling the Chassis:
- đ Take the Cligo 4WD chassis and notice how it snaps together without tools.
- đ Follow the manual to snap the ABS plastic panels together carefully.
- â ī¸ Attention: Handle the parts gentlyâno pliers needed! Use only the screwdriver provided for the servo motor.
Attaching the Motors:
- đ ī¸ Find the 100 RPM BO Motors.
- đ§ Attach each motor to the base of the chassis as shown in the manual.
Adding the Wheels:
- đ Take the yellow wheels and push them onto the motors’ shafts until they’re secure.
Line Sensor and Servo Motor:
- đ Place the SmartElex RLS-06 Line Sensor Array on the front of the chassis.
- đŠ Mount the Tower Pro Servo Motor using the screwdriver.
Electronics and Power:
- đ ī¸ Insert the SmartElex L298N Motor Driver with onboard Arduino Uno onto the chassis.
- đ Place the batteries in the holder, and attach it to the chassis with the double-sided sponge glue pad.
- đ Connect the motor driver, line sensor, and servo motor to the Arduino with the DuPont wires following the manual’s diagram.
Ultrasonic Sensor:
- đ Attach the HC-SR04 Ultrasonic Sensor to the Snap-fit ABS Bracket.
- đ§ Snap the bracket onto the front of the chassis.
Remote Control Module:
- đĄ Connect the Infrared IR Wireless Remote-Control Module to the Arduino using the DuPont wires.
Powering Up:
- đ Use the micro-USB cable to connect the Arduino to the battery holder.
- đ Secure all cables with the spiral wrapping band to keep them tidy.
Final Checks:
- â Ensure all parts are secure and the wires are neatly arranged.
- đ Turn on the switch on the battery holder to power up the robot car.
- đšī¸ Test each function using the remote control to make sure everything is working.
Congratulations! You’ve Assembled Your Robot Car!
Now, you’re ready to explore the world of robotics with your new robot car. Try out the line following function, program some cool manoeuvres, and see how it navigates your home. Remember, this is just the beginning of your robotics adventure. Keep experimenting and learning, and who knows what you might create next! đ¤đ