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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 509 · 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 smart watch (b) a spinning top (c) a hand pump (d) a wind-up toy
  3. 3.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  7. 7.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which job is done by the main chip? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  9. 9.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a plain wall switch (d) a smart watch
  11. 11.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  13. 13.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a smart watch (d) a microwave oven
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a spinning top (d) a washing machine
  15. 15.True or false: a microcontroller runs one small program. (a) False (b) True
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the power LED (d) the main chip
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  19. 19.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a laptop runs one small program. (a) True (b) False
  21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
  22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a hand pump (c) a toy robot (d) a TV remote
  23. 23.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  25. 25.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  26. 26.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a TV remote (d) a bicycle bell
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  29. 29.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) runs the program
  32. 32.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the power LED (d) the voltage regulator
  33. 33.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a washing machine (d) a plain wall switch
  35. 35.True or false: a laptop needs much more power. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a digital thermometer (d) a spinning top
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  39. 39.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a candle (d) a TV remote

Answer key

  1. No
  2. a smart watch
  3. microcontroller
  4. Yes
  5. False
  6. microcontroller
  7. Yes
  8. runs the program
  9. keeps the voltage steady
  10. a plain wall switch
  11. True
  12. microcontroller
  13. a wind-up toy
  14. a spinning top
  15. True
  16. laptop
  17. the pins
  18. USB or a 9 V battery
  19. No
  20. False
  21. False
  22. a hand pump
  23. True
  24. False
  25. a computer on one chip
  26. a TV remote
  27. No
  28. the USB port
  29. Yes
  30. Yes
  31. brings power and code
  32. the reset button
  33. restarts the program
  34. a washing machine
  35. True
  36. a digital thermometer
  37. uploaded over USB
  38. it starts again
  39. False
  40. a candle

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