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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 750 · 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) microcontroller (b) laptop
  2. 2.True or false: a laptop has no screen of its own. (a) True (b) False
  3. 3.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  5. 5.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  7. 7.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the main chip (d) the USB port
  9. 9.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  12. 12.True or false: a laptop runs many apps at once. (a) True (b) False
  13. 13.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  14. 14.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the power LED
  16. 16.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a TV remote (d) a smart watch
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  18. 18.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a hand pump (d) a washing machine
  19. 19.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  20. 20.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a microcontroller needs much more power. (a) False (b) True
  22. 22.True or false: a laptop uses very little power. (a) False (b) True
  23. 23.True or false: a microcontroller runs one small program. (a) False (b) True
  24. 24.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a candle (d) a toy robot
  25. 25.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  26. 26.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a wind-up toy (d) a TV remote
  27. 27.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  28. 28.True or false: a laptop runs one small program. (a) False (b) True
  29. 29.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a smart watch (d) a toy robot
  31. 31.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  33. 33.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a plain wall switch (d) a digital alarm clock
  34. 34.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a microcontroller uses very little power. (a) False (b) True
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a hand pump (d) a plain wall switch
  40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a candle (d) a spinning top

Answer key

  1. laptop
  2. False
  3. False
  4. microcontroller
  5. False
  6. flash memory
  7. Yes
  8. the USB port
  9. No
  10. True
  11. microcontroller
  12. True
  13. True
  14. False
  15. the main chip
  16. a hand pump
  17. laptop
  18. a washing machine
  19. True
  20. False
  21. False
  22. False
  23. True
  24. a candle
  25. connect sensors and LEDs
  26. a wind-up toy
  27. it starts again
  28. False
  29. a computer on one chip
  30. a spinning top
  31. False
  32. False
  33. a plain wall switch
  34. Yes
  35. True
  36. laptop
  37. No
  38. No
  39. a microwave oven
  40. a digital thermometer

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