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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 40 · 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 of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a candle (d) a digital thermometer
  2. 2.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  3. 3.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  5. 5.True or false: a laptop needs much more power. (a) False (b) True
  6. 6.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  7. 7.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the voltage regulator (d) the pins
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the voltage regulator (d) the power LED
  12. 12.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  15. 15.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  16. 16.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a bicycle bell (d) a TV remote
  17. 17.True or false: a laptop has a built-in keyboard. (a) False (b) True
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  19. 19.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a TV remote (d) a plain wall switch
  20. 20.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a microwave oven (d) a plain wall switch
  22. 22.🤖 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
  23. 23.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a spinning top (b) a toy robot (c) a digital thermometer (d) a digital alarm clock
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  26. 26.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a hand pump (d) a smart watch
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a spinning top (d) a plain wall switch
  28. 28.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  30. 30.True or false: a microcontroller runs many apps at once. (a) False (b) True
  31. 31.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a microcontroller uses very little power. (a) True (b) False
  33. 33.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  35. 35.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a plain wall switch (d) a hand pump
  36. 36.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  37. 37.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  39. 39.True or false: a microcontroller has no screen of its own. (a) False (b) True
  40. 40.Which job is done by the USB port? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program

Answer key

  1. a candle
  2. runs the program
  3. False
  4. False
  5. True
  6. a computer on one chip
  7. False
  8. it starts again
  9. the reset button
  10. the pins
  11. the main chip
  12. No
  13. laptop
  14. laptop
  15. Yes
  16. a bicycle bell
  17. True
  18. USB or a 9 V battery
  19. a TV remote
  20. True
  21. a plain wall switch
  22. uploaded over USB
  23. True
  24. a spinning top
  25. microcontroller
  26. a smart watch
  27. a digital alarm clock
  28. Yes
  29. True
  30. False
  31. True
  32. True
  33. No
  34. Yes
  35. a digital thermometer
  36. keeps the voltage steady
  37. False
  38. microcontroller
  39. True
  40. brings power and code

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