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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 307 · 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 of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a wind-up toy (d) a spinning top
  2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a TV remote (d) a digital alarm clock
  4. 4.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  5. 5.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a spinning top (d) a digital alarm clock
  6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🤖 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
  9. 9.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a wind-up toy
  10. 10.True or false: a microcontroller runs one small program. (a) False (b) True
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 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
  13. 13.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a smart watch (d) a spinning top
  14. 14.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  17. 17.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  18. 18.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  19. 19.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  20. 20.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  22. 22.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  25. 25.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  26. 26.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the main chip (d) the USB port
  28. 28.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a laptop has a built-in keyboard. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a hand pump (d) a digital thermometer
  31. 31.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  33. 33.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  35. 35.True or false: a laptop uses very little power. (a) False (b) True
  36. 36.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  37. 37.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a hand pump (d) a plain wall switch
  38. 38.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  40. 40.True or false: a microcontroller uses very little power. (a) True (b) False

Answer key

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

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