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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 567 · 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.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  4. 4.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  5. 5.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  6. 6.True or false: a laptop uses very little power. (a) False (b) True
  7. 7.True or false: a microcontroller uses very little power. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the reset button
  9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  10. 10.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a washing machine (d) a smart watch
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  13. 13.True or false: a laptop has no screen of its own. (a) True (b) False
  14. 14.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  15. 15.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) runs the program
  16. 16.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a 230 V cable (d) a wall socket directly
  18. 18.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  19. 19.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  23. 23.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a smart watch (d) a toy robot
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a candle (d) a TV remote
  27. 27.True or false: a laptop has a built-in keyboard. (a) True (b) False
  28. 28.True or false: a microcontroller needs much more power. (a) False (b) True
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  31. 31.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  32. 32.True or false: a microcontroller runs one small program. (a) True (b) False
  33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  35. 35.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  36. 36.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
  37. 37.True or false: a laptop runs many apps at once. (a) True (b) False
  38. 38.True or false: a laptop needs much more power. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a hand pump (d) a microwave oven
  40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a washing machine (d) a candle

Answer key

  1. False
  2. No
  3. the reset button
  4. shows the board is on
  5. brings power and code
  6. False
  7. True
  8. the main chip
  9. laptop
  10. a candle
  11. False
  12. True
  13. False
  14. keeps the voltage steady
  15. restarts the program
  16. False
  17. USB or a 9 V battery
  18. True
  19. Yes
  20. True
  21. Yes
  22. microcontroller
  23. a bicycle bell
  24. microcontroller
  25. No
  26. a TV remote
  27. True
  28. False
  29. Yes
  30. True
  31. connect sensors and LEDs
  32. True
  33. Yes
  34. runs the program
  35. True
  36. a computer on one chip
  37. True
  38. True
  39. a microwave oven
  40. a washing machine

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