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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 595 · 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 washing machine usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a laptop runs one small program. (a) True (b) False
  3. 3.True or false: a microcontroller needs much more power. (a) True (b) False
  4. 4.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a candle (d) a TV remote
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  7. 7.True or false: a laptop uses very little power. (a) False (b) True
  8. 8.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  9. 9.🤖 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
  10. 10.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a digital thermometer (d) a smart watch
  11. 11.True or false: a microcontroller has no screen of its own. (a) True (b) False
  12. 12.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  14. 14.Which job is done by the pins? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  15. 15.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a microwave oven
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  24. 24.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a bicycle bell (d) a digital thermometer
  25. 25.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a spinning top (d) a plain wall switch
  26. 26.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a candle (d) a wind-up toy
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  28. 28.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a TV remote (d) a wind-up toy
  31. 31.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) runs the program (d) shows the board is on
  32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  35. 35.True or false: a laptop has no screen of its own. (a) False (b) True
  36. 36.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a microcontroller uses very little power. (a) True (b) False

Answer key

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

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