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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 133 · 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.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  4. 4.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a hand pump (d) a microwave oven
  5. 5.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  7. 7.True or false: a microcontroller needs much more power. (a) False (b) True
  8. 8.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the main chip
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  12. 12.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a spinning top (d) a plain wall switch
  14. 14.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  16. 16.True or false: a laptop needs much more power. (a) True (b) False
  17. 17.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  19. 19.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a toy robot (d) a spinning top
  20. 20.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the pins (d) the power LED
  21. 21.Which of these has no microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a washing machine (d) a digital thermometer
  22. 22.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the power LED (d) the main chip
  24. 24.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  25. 25.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) runs the program
  26. 26.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  27. 27.True or false: a microcontroller runs one small program. (a) True (b) False
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  30. 30.True or false: a laptop runs one small program. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the pins (d) the USB port
  33. 33.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  34. 34.True or false: a microcontroller has no screen of its own. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a spinning top (d) a hand pump
  36. 36.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  37. 37.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a microwave oven (d) a candle
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a smart watch
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  40. 40.True or false: a microwave oven has no microcontroller inside. (a) True (b) False

Answer key

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

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