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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 363 · 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 bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a wind-up toy (d) a bicycle bell
  3. 3.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  5. 5.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  6. 6.True or false: a laptop needs much more power. (a) True (b) False
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a microcontroller has no screen of its own. (a) False (b) True
  9. 9.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a washing machine (d) a TV remote
  10. 10.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a smart watch (d) a toy robot
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the USB port (d) the main chip
  12. 12.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  13. 13.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  14. 14.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  15. 15.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the USB port (d) the main chip
  17. 17.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the USB port (d) the reset button
  19. 19.True or false: a microcontroller needs much more power. (a) False (b) True
  20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  24. 24.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  27. 27.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  28. 28.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  29. 29.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  32. 32.True or false: a laptop runs many apps at once. (a) False (b) True
  33. 33.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  34. 34.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  38. 38.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a toy robot (d) a bicycle bell
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a digital alarm clock
  40. 40.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a plain wall switch (d) a spinning top

Answer key

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

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