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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 552 · 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.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the reset button (d) the main chip
  2. 2.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) keeps the voltage steady
  3. 3.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the USB port (d) the voltage regulator
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  7. 7.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  10. 10.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital thermometer (d) a wind-up toy
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a plain wall switch (d) a toy robot
  12. 12.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a plain wall switch (d) a spinning top
  13. 13.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a washing machine (d) a TV remote
  14. 14.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a spinning top (d) a plain wall switch
  15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  18. 18.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a candle (d) a wind-up toy
  20. 20.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a washing machine (d) a wind-up toy
  21. 21.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  23. 23.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the reset button (d) the voltage regulator
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  26. 26.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  28. 28.Which job is done by the reset button? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  29. 29.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a laptop runs one small program. (a) False (b) True
  31. 31.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  32. 32.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  33. 33.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a digital alarm clock (d) a smart watch
  34. 34.True or false: a microcontroller needs much more power. (a) True (b) False
  35. 35.True or false: a microcontroller uses very little power. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  37. 37.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a spinning top (d) a toy robot
  38. 38.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a smart watch (d) a bicycle bell

Answer key

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

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