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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 185 · 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.

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

Answer key

  1. laptop
  2. brings power and code
  3. True
  4. Yes
  5. a digital alarm clock
  6. laptop
  7. Yes
  8. a hand pump
  9. No
  10. a wind-up toy
  11. keeps the voltage steady
  12. True
  13. False
  14. Yes
  15. True
  16. Yes
  17. connect sensors and LEDs
  18. the USB port
  19. microcontroller
  20. True
  21. Yes
  22. Yes
  23. a bicycle bell
  24. microcontroller
  25. a computer on one chip
  26. False
  27. False
  28. the main chip
  29. No
  30. False
  31. True
  32. a TV remote
  33. a candle
  34. USB or a 9 V battery
  35. a plain wall switch
  36. True
  37. True
  38. it starts again
  39. a microwave oven
  40. a smart watch

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