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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 695 · 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 microwave oven usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  3. 3.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
  5. 5.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  6. 6.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  11. 11.True or false: a microcontroller runs many apps at once. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
  13. 13.True or false: a laptop runs one small program. (a) False (b) True
  14. 14.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a toy robot (d) a hand pump
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  16. 16.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  17. 17.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  18. 18.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  19. 19.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.True or false: a laptop uses very little power. (a) True (b) False
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital alarm clock (d) a hand pump
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a wind-up toy (d) a candle
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  25. 25.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  26. 26.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  27. 27.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a microwave oven (d) a candle
  28. 28.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a microwave oven (d) a digital alarm clock
  29. 29.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a TV remote (d) a spinning top
  31. 31.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a toy robot (d) a washing machine
  32. 32.True or false: a laptop runs many apps at once. (a) True (b) False
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  34. 34.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  35. 35.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  36. 36.True or false: a microcontroller needs much more power. (a) False (b) True
  37. 37.True or false: a laptop needs much more power. (a) False (b) True
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a microcontroller runs one small program. (a) True (b) False
  40. 40.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. Yes
  2. True
  3. connect sensors and LEDs
  4. the reset button
  5. False
  6. Yes
  7. No
  8. Yes
  9. restarts the program
  10. it starts again
  11. False
  12. the power LED
  13. False
  14. a toy robot
  15. laptop
  16. False
  17. brings power and code
  18. keeps the voltage steady
  19. shows the board is on
  20. microcontroller
  21. False
  22. a digital alarm clock
  23. a washing machine
  24. the voltage regulator
  25. runs the program
  26. microcontroller
  27. a microwave oven
  28. a spinning top
  29. a computer on one chip
  30. a TV remote
  31. a hand pump
  32. True
  33. the main chip
  34. microcontroller
  35. False
  36. False
  37. True
  38. No
  39. True
  40. No

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