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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 121 · 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.

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

Answer key

  1. runs the program
  2. the reset button
  3. the voltage regulator
  4. restarts the program
  5. keeps the voltage steady
  6. No
  7. microcontroller
  8. a wind-up toy
  9. a digital thermometer
  10. it starts again
  11. False
  12. a washing machine
  13. laptop
  14. uploaded over USB
  15. No
  16. False
  17. No
  18. the power LED
  19. True
  20. False
  21. microcontroller
  22. Yes
  23. No
  24. the pins
  25. a toy robot
  26. True
  27. True
  28. False
  29. a TV remote
  30. brings power and code
  31. True
  32. No
  33. Yes
  34. shows the board is on
  35. a computer on one chip
  36. False
  37. a hand pump
  38. False
  39. a plain wall switch
  40. False

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