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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 715 · 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 digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  3. 3.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a laptop runs one small program. (a) False (b) True
  6. 6.True or false: a laptop needs much more power. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a bicycle bell (d) a microwave oven
  8. 8.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  11. 11.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  12. 12.True or false: a laptop runs many apps at once. (a) True (b) False
  13. 13.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  14. 14.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a TV remote (d) a wind-up toy
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  17. 17.True or false: a microcontroller has no screen of its own. (a) False (b) True
  18. 18.True or false: a microcontroller runs one small program. (a) True (b) False
  19. 19.Which job is done by the main chip? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  20. 20.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) runs the program
  21. 21.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a candle (d) a washing machine
  22. 22.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  23. 23.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  25. 25.True or false: a microcontroller runs many apps at once. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the USB port (d) the main chip
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  28. 28.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a toy robot (d) a TV remote
  31. 31.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital alarm clock (d) a plain wall switch
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  33. 33.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a plain wall switch (d) a spinning top
  34. 34.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  36. 36.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a spinning top (d) a digital alarm clock
  37. 37.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a spinning top (d) a wind-up toy
  38. 38.True or false: a laptop uses very little power. (a) True (b) False
  39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False

Answer key

  1. Yes
  2. True
  3. True
  4. Yes
  5. False
  6. True
  7. a microwave oven
  8. No
  9. microcontroller
  10. False
  11. keeps the voltage steady
  12. True
  13. True
  14. a wind-up toy
  15. microcontroller
  16. laptop
  17. True
  18. True
  19. runs the program
  20. restarts the program
  21. a washing machine
  22. flash memory
  23. Yes
  24. USB or a 9 V battery
  25. False
  26. the main chip
  27. No
  28. connect sensors and LEDs
  29. Yes
  30. a plain wall switch
  31. a digital alarm clock
  32. the USB port
  33. a digital thermometer
  34. False
  35. laptop
  36. a spinning top
  37. a TV remote
  38. False
  39. Yes
  40. False

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