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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 697 · 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.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the power LED (d) the voltage regulator
  4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  8. 8.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  9. 9.True or false: a microcontroller runs one small program. (a) True (b) False
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the pins (d) the main chip
  11. 11.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a wind-up toy (d) a TV remote
  13. 13.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) restarts the program
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the voltage regulator (d) the power LED
  15. 15.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a microwave oven
  17. 17.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  18. 18.True or false: a laptop has a built-in keyboard. (a) False (b) True
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  21. 21.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  22. 22.True or false: a laptop runs one small program. (a) True (b) False
  23. 23.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  26. 26.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  27. 27.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  29. 29.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a washing machine (d) a toy robot
  30. 30.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a washing machine (d) a bicycle bell
  31. 31.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a microwave oven (d) a TV remote
  32. 32.True or false: a laptop has no screen of its own. (a) True (b) False
  33. 33.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a laptop needs much more power. (a) True (b) False
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  38. 38.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  39. 39.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
  40. 40.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True

Answer key

  1. Yes
  2. False
  3. the power LED
  4. No
  5. False
  6. microcontroller
  7. laptop
  8. False
  9. True
  10. the main chip
  11. True
  12. a wind-up toy
  13. runs the program
  14. the voltage regulator
  15. connect sensors and LEDs
  16. a microwave oven
  17. True
  18. True
  19. No
  20. False
  21. a computer on one chip
  22. False
  23. False
  24. Yes
  25. flash memory
  26. Yes
  27. False
  28. microcontroller
  29. a candle
  30. a washing machine
  31. a plain wall switch
  32. False
  33. True
  34. True
  35. No
  36. False
  37. uploaded over USB
  38. False
  39. keeps the voltage steady
  40. True

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