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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 173 · 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 of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital alarm clock (d) a spinning top
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the reset button (d) the power LED
  5. 5.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  8. 8.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the reset button
  10. 10.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) brings power and code
  11. 11.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a TV remote (d) a hand pump
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a digital thermometer (d) a toy robot
  13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  14. 14.True or false: a laptop uses very little power. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the voltage regulator (d) the USB port
  16. 16.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a bicycle bell (d) a toy robot
  17. 17.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a smart watch
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  23. 23.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a microcontroller needs much more power. (a) False (b) True
  25. 25.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  26. 26.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  27. 27.True or false: a laptop needs much more power. (a) True (b) False
  28. 28.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  29. 29.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  30. 30.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a microcontroller runs one small program. (a) True (b) False
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  35. 35.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a washing machine
  37. 37.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  39. 39.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) brings power and code
  40. 40.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a washing machine (d) a smart watch

Answer key

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

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