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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 368 · 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) Yes (b) No
  2. 2.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a microwave oven (d) a hand pump
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a bicycle bell (d) a TV remote
  4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a candle has no microcontroller inside. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the reset button
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a hand pump (d) a digital alarm clock
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  10. 10.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  13. 13.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  14. 14.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  15. 15.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  17. 17.True or false: a microcontroller has no screen of its own. (a) False (b) True
  18. 18.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  19. 19.True or false: a microcontroller runs many apps at once. (a) True (b) False
  20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a laptop runs one small program. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  24. 24.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  25. 25.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  26. 26.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the USB port (d) the reset button
  28. 28.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a digital thermometer (d) a candle
  29. 29.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a laptop uses very little power. (a) False (b) True
  31. 31.True or false: a laptop has a built-in keyboard. (a) False (b) True
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the power LED (d) the USB port
  33. 33.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  35. 35.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital alarm clock (d) a hand pump
  36. 36.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  38. 38.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
  39. 39.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  40. 40.True or false: a toy robot has no microcontroller inside. (a) False (b) True

Answer key

  1. No
  2. a microwave oven
  3. a TV remote
  4. Yes
  5. True
  6. the pins
  7. a digital alarm clock
  8. Yes
  9. True
  10. True
  11. the voltage regulator
  12. laptop
  13. False
  14. False
  15. True
  16. a computer on one chip
  17. True
  18. True
  19. False
  20. No
  21. No
  22. False
  23. microcontroller
  24. brings power and code
  25. True
  26. False
  27. the reset button
  28. a digital thermometer
  29. Yes
  30. False
  31. True
  32. the power LED
  33. microcontroller
  34. flash memory
  35. a hand pump
  36. True
  37. the main chip
  38. restarts the program
  39. USB or a 9 V battery
  40. False

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