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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 516 · 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.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  3. 3.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  5. 5.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) brings power and code (d) restarts the program
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a plain wall switch (d) a TV remote
  8. 8.True or false: a laptop uses very little power. (a) True (b) False
  9. 9.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a bicycle bell (d) a plain wall switch
  12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a laptop has a built-in keyboard. (a) False (b) True
  14. 14.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) restarts the program
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  16. 16.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  17. 17.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a hand pump (d) a smart watch
  18. 18.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  19. 19.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  21. 21.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a candle (d) a hand pump
  22. 22.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  25. 25.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the power LED (d) the USB port
  26. 26.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  29. 29.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a bicycle bell (d) a candle
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  32. 32.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the voltage regulator (d) the pins
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  35. 35.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  36. 36.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) shows the board is on (d) runs the program
  37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a laptop runs one small program. (a) True (b) False
  40. 40.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. laptop
  2. a computer on one chip
  3. Yes
  4. the reset button
  5. shows the board is on
  6. True
  7. a TV remote
  8. False
  9. False
  10. No
  11. a toy robot
  12. No
  13. True
  14. keeps the voltage steady
  15. brings power and code
  16. False
  17. a hand pump
  18. restarts the program
  19. True
  20. it starts again
  21. a smart watch
  22. False
  23. No
  24. True
  25. the main chip
  26. Yes
  27. microcontroller
  28. laptop
  29. True
  30. a microwave oven
  31. False
  32. No
  33. the voltage regulator
  34. Yes
  35. flash memory
  36. runs the program
  37. Yes
  38. No
  39. False
  40. Yes

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