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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 272 · 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 laptop runs one small program. (a) False (b) True
  2. 2.True or false: a microcontroller uses very little power. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the reset button (d) the power LED
  4. 4.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  5. 5.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  6. 6.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the USB port (d) the power LED
  9. 9.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  10. 10.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  11. 11.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  12. 12.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  13. 13.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  17. 17.True or false: a microcontroller runs many apps at once. (a) True (b) False
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  21. 21.True or false: a microcontroller runs one small program. (a) True (b) False
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a plain wall switch (d) a washing machine
  23. 23.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a bicycle bell (d) a candle
  25. 25.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  26. 26.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  27. 27.True or false: a laptop needs much more power. (a) False (b) True
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  29. 29.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a bicycle bell (d) a microwave oven
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  36. 36.True or false: a laptop has no screen of its own. (a) True (b) False
  37. 37.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  38. 38.True or false: a laptop uses very little power. (a) False (b) True
  39. 39.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a smart watch has no microcontroller inside. (a) False (b) True

Answer key

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

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