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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 9 · 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.

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

Answer key

  1. False
  2. True
  3. Yes
  4. laptop
  5. a bicycle bell
  6. the pins
  7. microcontroller
  8. True
  9. it starts again
  10. True
  11. a spinning top
  12. True
  13. the USB port
  14. Yes
  15. a digital thermometer
  16. True
  17. the power LED
  18. uploaded over USB
  19. No
  20. True
  21. False
  22. runs the program
  23. False
  24. Yes
  25. brings power and code
  26. False
  27. flash memory
  28. a washing machine
  29. a plain wall switch
  30. laptop
  31. Yes
  32. a candle
  33. a microwave oven
  34. True
  35. False
  36. a digital alarm clock
  37. Yes
  38. the voltage regulator
  39. a toy robot
  40. restarts the program

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