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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. connect sensors and LEDs
  2. uploaded over USB
  3. a computer on one chip
  4. it starts again
  5. False
  6. False
  7. the reset button
  8. True
  9. Yes
  10. False
  11. a wind-up toy
  12. a bicycle bell
  13. the main chip
  14. True
  15. laptop
  16. the pins
  17. False
  18. True
  19. the USB port
  20. a toy robot
  21. False
  22. False
  23. a candle
  24. a microwave oven
  25. No
  26. False
  27. True
  28. Yes
  29. Yes
  30. brings power and code
  31. a spinning top
  32. restarts the program
  33. No
  34. True
  35. False
  36. True
  37. a digital thermometer
  38. laptop
  39. No
  40. No

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