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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 47 · 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 digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a microcontroller has no screen of its own. (a) False (b) True
  3. 3.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a TV remote (d) a smart watch
  4. 4.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a laptop needs much more power. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the main chip (d) the voltage regulator
  8. 8.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a TV remote (d) a digital thermometer
  10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a washing machine (d) a candle
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  13. 13.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  14. 14.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
  15. 15.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  16. 16.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a TV remote (d) a wind-up toy
  17. 17.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  18. 18.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a candle (d) a plain wall switch
  22. 22.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a smart watch (d) a hand pump
  23. 23.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  27. 27.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a wind-up toy (d) a candle
  30. 30.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  32. 32.True or false: a laptop runs many apps at once. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  34. 34.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
  38. 38.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a hand pump has no microcontroller inside. (a) True (b) False

Answer key

  1. Yes
  2. True
  3. a spinning top
  4. No
  5. True
  6. laptop
  7. the voltage regulator
  8. No
  9. a plain wall switch
  10. a candle
  11. Yes
  12. False
  13. False
  14. keeps the voltage steady
  15. USB or a 9 V battery
  16. a TV remote
  17. it starts again
  18. Yes
  19. laptop
  20. microcontroller
  21. a washing machine
  22. a smart watch
  23. a computer on one chip
  24. microcontroller
  25. Yes
  26. False
  27. True
  28. False
  29. a toy robot
  30. True
  31. No
  32. True
  33. microcontroller
  34. True
  35. Yes
  36. False
  37. the pins
  38. connect sensors and LEDs
  39. No
  40. True

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