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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 752 · 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 microcontroller has a built-in keyboard. (a) True (b) False
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  3. 3.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a hand pump (d) a candle
  6. 6.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  7. 7.🤖 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
  8. 8.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  14. 14.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  15. 15.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a laptop has a built-in keyboard. (a) False (b) True
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  19. 19.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  21. 21.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a digital thermometer (d) a microwave oven
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  23. 23.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a smart watch (d) a TV remote
  24. 24.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a laptop runs many apps at once. (a) False (b) True
  26. 26.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a bicycle bell (d) a candle
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the USB port (d) the power LED
  30. 30.True or false: a laptop uses very little power. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a bicycle bell (d) a microwave oven
  32. 32.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a spinning top (d) a wind-up toy
  33. 33.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a TV remote (d) a spinning top
  35. 35.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a smart watch (d) a wind-up toy
  37. 37.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  39. 39.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a microcontroller needs much more power. (a) False (b) True

Answer key

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

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