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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 261 · 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 microwave oven usually has a microcontroller inside. (a) False (b) True
  2. 2.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the main chip (c) the voltage regulator (d) the pins
  5. 5.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  7. 7.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  8. 8.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the pins (d) the power LED
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  13. 13.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  15. 15.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  16. 16.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a hand pump (d) a washing machine
  22. 22.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  24. 24.True or false: a laptop runs many apps at once. (a) True (b) False
  25. 25.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a TV remote (d) a plain wall switch
  26. 26.True or false: a laptop runs one small program. (a) False (b) True
  27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
  28. 28.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  29. 29.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a TV remote (d) a candle
  30. 30.True or false: a laptop needs much more power. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the power LED (d) the USB port
  32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  34. 34.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a wind-up toy
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a TV remote (d) a spinning top
  37. 37.True or false: a laptop has a built-in keyboard. (a) False (b) True
  38. 38.True or false: a laptop uses very little power. (a) False (b) True
  39. 39.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  40. 40.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a TV remote (d) a bicycle bell

Answer key

  1. True
  2. False
  3. Yes
  4. the voltage regulator
  5. False
  6. microcontroller
  7. restarts the program
  8. Yes
  9. the USB port
  10. flash memory
  11. False
  12. the power LED
  13. No
  14. USB or a 9 V battery
  15. False
  16. Yes
  17. True
  18. False
  19. laptop
  20. runs the program
  21. a washing machine
  22. No
  23. True
  24. True
  25. a plain wall switch
  26. False
  27. True
  28. False
  29. a candle
  30. True
  31. the main chip
  32. laptop
  33. microcontroller
  34. a smart watch
  35. microcontroller
  36. a spinning top
  37. True
  38. False
  39. brings power and code
  40. a bicycle bell

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