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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 110 · 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 toy robot usually has a microcontroller inside. (a) False (b) True
  2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  3. 3.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a digital alarm clock (d) a hand pump
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the main chip (d) the voltage regulator
  7. 7.True or false: a laptop has no screen of its own. (a) True (b) False
  8. 8.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  9. 9.🤖 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
  10. 10.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  12. 12.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the pins
  14. 14.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a microwave oven (d) a bicycle bell
  17. 17.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these has no microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a TV remote (d) a digital alarm clock
  19. 19.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  20. 20.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a candle (d) a TV remote
  21. 21.True or false: a microcontroller runs one small program. (a) False (b) True
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  24. 24.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a digital alarm clock (d) a toy robot
  25. 25.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  27. 27.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  29. 29.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  31. 31.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  32. 32.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  36. 36.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a plain wall switch (d) a microwave oven
  37. 37.True or false: a laptop needs much more power. (a) True (b) False
  38. 38.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  39. 39.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. True
  2. microcontroller
  3. No
  4. False
  5. a digital alarm clock
  6. the pins
  7. False
  8. flash memory
  9. USB or a 9 V battery
  10. laptop
  11. microcontroller
  12. Yes
  13. the main chip
  14. laptop
  15. it starts again
  16. a bicycle bell
  17. Yes
  18. a wind-up toy
  19. keeps the voltage steady
  20. a candle
  21. True
  22. No
  23. restarts the program
  24. a spinning top
  25. False
  26. True
  27. False
  28. False
  29. No
  30. brings power and code
  31. No
  32. False
  33. the reset button
  34. microcontroller
  35. True
  36. a plain wall switch
  37. True
  38. False
  39. False
  40. Yes

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