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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 621 · 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 USB port? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the power LED (d) the main chip
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a digital alarm clock (d) a wind-up toy
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
  5. 5.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  7. 7.True or false: a laptop has no screen of its own. (a) True (b) False
  8. 8.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  9. 9.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  11. 11.True or false: a microcontroller runs many apps at once. (a) True (b) False
  12. 12.True or false: a microcontroller runs one small program. (a) False (b) True
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.True or false: a laptop needs much more power. (a) True (b) False
  17. 17.True or false: a microcontroller needs much more power. (a) False (b) True
  18. 18.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a plain wall switch (d) a candle
  20. 20.🧭 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
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the power LED (d) the USB port
  24. 24.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a plain wall switch (d) a microwave oven
  26. 26.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a TV remote (d) a digital alarm clock
  27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  28. 28.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a hand pump (d) a wind-up toy
  29. 29.True or false: a toy robot has no 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 pins? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  32. 32.True or false: a microcontroller has no screen of its own. (a) False (b) True
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a plain wall switch (d) a candle
  34. 34.True or false: a microcontroller uses very little power. (a) False (b) True
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a spinning top (d) a hand pump
  37. 37.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a hand pump (d) a toy robot
  38. 38.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a microwave oven (d) a candle
  40. 40.🤖 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

Answer key

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

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