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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 213 · 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.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a smart watch (d) a wind-up toy
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  6. 6.True or false: a laptop runs one small program. (a) False (b) True
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  8. 8.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  9. 9.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a spinning top (d) a toy robot
  10. 10.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  12. 12.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  14. 14.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which of these has no microcontroller inside? (a) a hand pump (b) a smart watch (c) a digital alarm clock (d) a washing machine
  16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  19. 19.True or false: a laptop has a built-in keyboard. (a) True (b) False
  20. 20.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  21. 21.Which job is done by the USB port? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) brings power and code
  22. 22.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  23. 23.True or false: a microcontroller needs much more power. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the pins
  25. 25.True or false: a laptop runs many apps at once. (a) True (b) False
  26. 26.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a digital thermometer (d) a digital alarm clock
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  28. 28.True or false: a laptop has no screen of its own. (a) True (b) False
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  30. 30.Which job is done by the reset button? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  31. 31.True or false: a microcontroller has no screen of its own. (a) True (b) False
  32. 32.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  33. 33.True or false: a microcontroller runs many apps at once. (a) False (b) True
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  36. 36.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a candle (d) a washing machine
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the voltage regulator (d) the power LED
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False

Answer key

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

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