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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 586 · 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 laptop has a built-in keyboard. (a) False (b) True
  2. 2.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the main chip (d) the USB port
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  6. 6.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) keeps the voltage steady
  7. 7.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  8. 8.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the pins (d) the main chip
  10. 10.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  11. 11.Which job is done by the power LED? (a) runs the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a wind-up toy (d) a digital thermometer
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the USB port (d) the reset button
  17. 17.True or false: a microcontroller runs one small program. (a) False (b) True
  18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  19. 19.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a toy robot (d) a plain wall switch
  21. 21.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it stops forever (d) it deletes itself
  22. 22.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a plain wall switch (d) a bicycle bell
  23. 23.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  25. 25.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a microcontroller needs much more power. (a) True (b) False
  27. 27.True or false: a candle has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  29. 29.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a wind-up toy (d) a digital alarm clock
  30. 30.True or false: a laptop uses very little power. (a) True (b) False
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a microwave oven (d) a hand pump
  35. 35.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the USB port
  36. 36.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  37. 37.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  38. 38.True or false: a microcontroller runs many apps at once. (a) False (b) True
  39. 39.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a spinning top (d) a washing machine

Answer key

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

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