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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 288 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  3. 3.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a candle (d) a bicycle bell
  4. 4.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  5. 5.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) runs the program
  6. 6.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a digital thermometer
  7. 7.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  8. 8.True or false: a laptop needs much more 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 microcontroller uses very little power. (a) True (b) False
  11. 11.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  12. 12.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  16. 16.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  17. 17.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  19. 19.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a wind-up toy (d) a microwave oven
  20. 20.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  21. 21.True or false: a microcontroller needs much more power. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the USB port (d) the voltage regulator
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a smart watch (d) a wind-up toy
  24. 24.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  26. 26.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a microwave oven (d) a hand pump
  28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the reset button (d) the main chip
  30. 30.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  31. 31.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  34. 34.True or false: a laptop runs one small program. (a) False (b) True
  35. 35.True or false: a microcontroller runs many apps at once. (a) False (b) True
  36. 36.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  39. 39.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  40. 40.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip

Answer key

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

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