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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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