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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 629 · 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 pins (b) the USB port (c) the main chip (d) the voltage regulator
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  7. 7.True or false: a microcontroller needs much more power. (a) True (b) False
  8. 8.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a hand pump (d) a plain wall switch
  9. 9.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a toy robot (d) a wind-up toy
  10. 10.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a toy robot (d) a bicycle bell
  11. 11.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) brings power and code
  12. 12.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  13. 13.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  16. 16.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a bicycle bell (d) a spinning top
  17. 17.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  18. 18.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  21. 21.True or false: a laptop has a built-in keyboard. (a) False (b) True
  22. 22.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  23. 23.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  30. 30.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  32. 32.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  34. 34.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a plain wall switch (d) a microwave oven
  35. 35.True or false: a microcontroller uses very little power. (a) False (b) True
  36. 36.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  37. 37.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a candle (d) a plain wall switch
  38. 38.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. the main chip
  2. it starts again
  3. Yes
  4. False
  5. laptop
  6. the voltage regulator
  7. False
  8. a digital thermometer
  9. a wind-up toy
  10. a toy robot
  11. restarts the program
  12. connect sensors and LEDs
  13. False
  14. laptop
  15. False
  16. a smart watch
  17. runs the program
  18. No
  19. Yes
  20. microcontroller
  21. True
  22. a computer on one chip
  23. False
  24. the reset button
  25. microcontroller
  26. brings power and code
  27. Yes
  28. the pins
  29. microcontroller
  30. True
  31. the USB port
  32. Yes
  33. False
  34. a plain wall switch
  35. True
  36. True
  37. a microwave oven
  38. True
  39. False
  40. No

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