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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 530 · 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) Yes (b) No
  2. 2.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  3. 3.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  4. 4.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  5. 5.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  6. 6.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a microwave oven (d) a TV remote
  7. 7.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  8. 8.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  9. 9.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  10. 10.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a spinning top (d) a digital thermometer
  12. 12.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  13. 13.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  14. 14.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a TV remote (d) a candle
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the voltage regulator (c) the USB port (d) the main chip
  17. 17.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a microcontroller needs much more power. (a) True (b) False
  19. 19.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a candle (d) a spinning top
  22. 22.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  23. 23.True or false: a laptop runs one small program. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  27. 27.True or false: a microcontroller runs one small program. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  29. 29.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  33. 33.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a TV remote (d) a microwave oven
  34. 34.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a plain wall switch (d) a wind-up toy
  35. 35.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  36. 36.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the voltage regulator (d) the USB port
  37. 37.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the voltage regulator
  38. 38.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital thermometer (d) a bicycle bell
  40. 40.True or false: a microcontroller has a built-in keyboard. (a) False (b) True

Answer key

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

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