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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 169 · 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.True or false: a microcontroller needs much more power. (a) False (b) True
  2. 2.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  3. 3.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  4. 4.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  5. 5.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  7. 7.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 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
  9. 9.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
  11. 11.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) runs the program (d) keeps the voltage steady
  12. 12.True or false: a laptop has a built-in keyboard. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the power LED (d) the reset button
  16. 16.True or false: a laptop uses very little power. (a) True (b) False
  17. 17.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  18. 18.True or false: a microcontroller uses very little power. (a) True (b) False
  19. 19.True or false: a microcontroller has no screen of its own. (a) False (b) True
  20. 20.True or false: a laptop runs many apps at once. (a) True (b) False
  21. 21.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  22. 22.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  23. 23.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a bicycle bell (d) a digital alarm clock
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  25. 25.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a bicycle bell (d) a digital alarm clock
  27. 27.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.True or false: a laptop runs one small program. (a) False (b) True
  30. 30.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  32. 32.Which of these has no microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a microwave oven (d) a digital thermometer
  33. 33.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a candle (d) a microwave oven
  34. 34.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a TV remote (d) a washing machine
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  38. 38.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  39. 39.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. False
  2. False
  3. No
  4. True
  5. No
  6. No
  7. Yes
  8. a computer on one chip
  9. connect sensors and LEDs
  10. the pins
  11. restarts the program
  12. True
  13. the voltage regulator
  14. microcontroller
  15. the reset button
  16. False
  17. runs the program
  18. True
  19. True
  20. True
  21. microcontroller
  22. False
  23. a bicycle bell
  24. microcontroller
  25. False
  26. a digital alarm clock
  27. False
  28. laptop
  29. False
  30. False
  31. flash memory
  32. a plain wall switch
  33. a candle
  34. True
  35. No
  36. a wind-up toy
  37. laptop
  38. laptop
  39. Yes
  40. No

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