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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 390 · 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 runs one small program? (a) laptop (b) microcontroller
  2. 2.🤖 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
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  7. 7.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  8. 8.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a plain wall switch (d) a digital alarm clock
  9. 9.True or false: a laptop has no screen of its own. (a) False (b) True
  10. 10.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  12. 12.True or false: a laptop uses very little power. (a) True (b) False
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a microwave oven (d) a smart watch
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  16. 16.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a microwave oven (d) a digital thermometer
  17. 17.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a wind-up toy (d) a digital alarm clock
  18. 18.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  19. 19.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  20. 20.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
  21. 21.True or false: a microcontroller runs many apps at once. (a) False (b) True
  22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  25. 25.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  26. 26.Which job is done by the reset button? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  27. 27.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  30. 30.True or false: a laptop needs much more power. (a) False (b) True
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  32. 32.True or false: a microcontroller has no screen of its own. (a) True (b) False
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a laptop runs many apps at once. (a) False (b) True
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the main chip (d) the USB port
  36. 36.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  37. 37.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  38. 38.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a bicycle bell (d) a microwave oven

Answer key

  1. microcontroller
  2. USB or a 9 V battery
  3. laptop
  4. No
  5. Yes
  6. laptop
  7. True
  8. a digital alarm clock
  9. False
  10. False
  11. laptop
  12. False
  13. True
  14. a plain wall switch
  15. the reset button
  16. a spinning top
  17. a wind-up toy
  18. True
  19. shows the board is on
  20. brings power and code
  21. False
  22. True
  23. Yes
  24. False
  25. it starts again
  26. restarts the program
  27. No
  28. microcontroller
  29. the main chip
  30. True
  31. uploaded over USB
  32. True
  33. No
  34. True
  35. the USB port
  36. False
  37. keeps the voltage steady
  38. True
  39. Yes
  40. a bicycle bell

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