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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 181 · 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 microwave oven usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  3. 3.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the voltage regulator (d) the reset button
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a bicycle bell (d) a plain wall switch
  6. 6.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  7. 7.True or false: a laptop uses very little power. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  9. 9.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  10. 10.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 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
  12. 12.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  13. 13.Which job is done by the reset button? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  16. 16.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a plain wall switch (d) a spinning top
  17. 17.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a washing machine (d) a digital thermometer
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  20. 20.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  22. 22.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  23. 23.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  25. 25.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a microcontroller runs one small program. (a) True (b) False
  27. 27.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  28. 28.True or false: a microcontroller runs many apps at once. (a) False (b) True
  29. 29.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a washing machine (d) a toy robot
  30. 30.True or false: a candle has no microcontroller inside. (a) True (b) False
  31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a TV remote (d) a candle
  32. 32.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the USB port (d) the power LED
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a spinning top (d) a toy robot
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a plain wall switch (d) a washing machine

Answer key

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

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