Section outline

  • Robots use output devices to act — like moving motors, lighting LEDs, or buzzing sounds.

    • 🔁 What Are Output Devices?

      Output devices receive signals from a robot’s brain and perform actions like moving, lighting up, or making sounds.

      ⚙️ 1. Motors – For Movement

      • DC Motor: Spins continuously (e.g. robot wheels)
      • Servo Motor: Turns to a set angle (e.g. robot arm)
      • Stepper Motor: Moves in small steps (e.g. 3D printer)

      💡 2. LEDs – For Indicators

      Used for signals like status, charging, or effects.

      • 🟢 Green = Ready
      • 🔴 Red = Low battery

      🔊 3. Buzzers – For Sounds

      • Passive Buzzer: Plays tones via code
      • Active Buzzer: Beeps with power 

    • 🤖 In Real Robots

      Robot Example Output Device Used What It Does
      Robot Vacuum Cleaner Motors Moves around room
      Toy Robot Dog LEDs, Buzzers, Motors Wags tail, barks, and lights up
      Smart Factory Arm Servo Motors Moves to pick and place objects