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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 605 · 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 job is done by the power LED? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  2. 2.True or false: a microcontroller runs one small program. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  4. 4.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a TV remote (d) a spinning top
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a candle (d) a plain wall switch
  10. 10.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the main chip (c) the power LED (d) the voltage regulator
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  16. 16.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a microcontroller has no screen of its own. (a) True (b) False
  19. 19.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  20. 20.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  23. 23.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  25. 25.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a candle (d) a washing machine
  26. 26.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a digital thermometer (d) a wind-up toy
  28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a microcontroller needs much more power. (a) True (b) False
  30. 30.Which job is done by the USB port? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) brings power and code
  31. 31.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a TV remote (d) a hand pump
  32. 32.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  35. 35.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True

Answer key

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

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