What is a Robot? Machines That Help Us

Learning Objectives Define what a robot is using the Sense-Think-Act paradigm. Identify the three main components of a robot: sensors, a controller, and actuators. Differentiate between a simple automated machine and a true robot. Explain the role of a microcontroller as the 'brain' of a robot. Write a simple pseudocode algorithm to control a robot's basic action. Describe at least three real-world applications of robots in different industries. Ever wondered how a Mars rover explores another planet all by itself, or how a vacuum cleans your house while you're away? 🤖 Let's find out! In this lesson, we'll dive into the exciting world of robotics! We will define what makes a machine a 'robot', explore its core components, and see how...

TermDefinitionExample RobotA programmable machine capable of sensing its environment, making decisions based on that information, and performing physical actions.A robotic vacuum cleaner uses sensors to detect walls and dirt, its controller decides where to go next, and its motors (actuators) move it around the room. SensorA device that detects and responds to some type of input from the physical environment. It's the robot's 'senses'.An ultrasonic distance sensor on a robot car measures how far away an object is, just like a bat uses sonar. Controller (Microcontroller)The 'brain' of the robot. It's a small computer that runs a program, processes information from sensors, and sends commands to the actuators.An Arduino or Raspberry Pi board that takes a d...

The IF-THEN-ELSE Conditional IF (condition is true) THEN (perform action A) ELSE (perform action B) This is the core decision-making tool for a robot. It allows the program to choose between two actions based on sensor input. For example, IF a button is pressed, THEN turn on an LED, ELSE turn it off. The WHILE Loop WHILE (condition is true) DO (repeat these actions) This structure makes a robot repeat a set of actions as long as a condition is met. It's essential for tasks that need to run continuously, like following a line or avoiding obstacles. The robot will keep checking the condition and repeating the actions inside the loop. Function Definition DEFINE FUNCTION turn_right(): ...steps to turn right... Functions are named blocks of code that perform a spe...