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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 23 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

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  1. 1.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the main chip (d) the pins
  2. 2.True or false: a microcontroller has no screen of its own. (a) True (b) False
  3. 3.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  5. 5.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) runs the program
  6. 6.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the power LED (c) the main chip (d) the USB port
  8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the pins (d) the main chip
  9. 9.True or false: a laptop runs many apps at once. (a) True (b) False
  10. 10.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the USB port (d) the power LED
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  13. 13.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a toy robot (d) a bicycle bell
  14. 14.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microcontroller runs many apps at once. (a) False (b) True
  17. 17.True or false: a laptop has no screen of its own. (a) True (b) False
  18. 18.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  19. 19.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  20. 20.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  21. 21.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a plain wall switch (d) a bicycle bell
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  25. 25.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  29. 29.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a TV remote (d) a smart watch
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a laptop needs much more power. (a) False (b) True
  32. 32.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a bicycle bell (d) a plain wall switch
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a laptop has a built-in keyboard. (a) False (b) True
  36. 36.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  40. 40.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port

Answer key

  1. the main chip
  2. True
  3. False
  4. USB or a 9 V battery
  5. keeps the voltage steady
  6. connect sensors and LEDs
  7. the USB port
  8. the pins
  9. True
  10. Yes
  11. the power LED
  12. laptop
  13. a toy robot
  14. True
  15. No
  16. False
  17. False
  18. False
  19. True
  20. True
  21. brings power and code
  22. a washing machine
  23. microcontroller
  24. laptop
  25. False
  26. False
  27. Yes
  28. a computer on one chip
  29. a candle
  30. Yes
  31. True
  32. a digital thermometer
  33. microcontroller
  34. No
  35. True
  36. False
  37. flash memory
  38. Yes
  39. microcontroller
  40. the reset button

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