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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 636 · 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) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a wind-up toy (d) a digital alarm clock
  4. 4.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) restarts the program
  5. 5.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  6. 6.True or false: a candle has no microcontroller inside. (a) False (b) True
  7. 7.True or false: a laptop needs much more power. (a) False (b) True
  8. 8.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  9. 9.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  10. 10.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a washing machine (d) a digital thermometer
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a laptop uses very little power. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the power LED (d) the reset button
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the voltage regulator (d) the main chip
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a candle (d) a digital thermometer
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a bicycle bell (d) a spinning top
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  20. 20.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the power LED (d) the reset button
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  24. 24.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a candle (d) a TV remote
  27. 27.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  28. 28.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  32. 32.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  33. 33.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a bicycle bell (d) a microwave oven
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a microcontroller has no screen of its own. (a) True (b) False
  40. 40.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. shows the board is on
  2. No
  3. a digital alarm clock
  4. runs the program
  5. connect sensors and LEDs
  6. True
  7. True
  8. restarts the program
  9. True
  10. a wind-up toy
  11. No
  12. False
  13. the USB port
  14. the main chip
  15. microcontroller
  16. a digital thermometer
  17. flash memory
  18. a smart watch
  19. laptop
  20. True
  21. the power LED
  22. Yes
  23. False
  24. True
  25. No
  26. a TV remote
  27. False
  28. False
  29. False
  30. Yes
  31. brings power and code
  32. a computer on one chip
  33. False
  34. a microwave oven
  35. laptop
  36. True
  37. False
  38. True
  39. True
  40. Yes

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