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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 418 · 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 digital alarm clock usually has a microcontroller inside. (a) True (b) False
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the reset button (c) the power LED (d) the USB port
  3. 3.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a bicycle bell (d) a plain wall switch
  4. 4.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) restarts the program
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a toy robot (d) a smart watch
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  10. 10.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the voltage regulator (d) the reset button
  12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a washing machine (d) a candle
  13. 13.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  15. 15.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  16. 16.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  17. 17.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  19. 19.True or false: a microcontroller runs one small program. (a) True (b) False
  20. 20.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  21. 21.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  22. 22.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a microwave oven (d) a candle
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  29. 29.🧭 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
  30. 30.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  32. 32.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) shows the board is on
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  34. 34.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a spinning top (d) a TV remote
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a bicycle bell (d) a microwave oven
  36. 36.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a toy robot (d) a wind-up toy
  37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a candle usually has a microcontroller inside. (a) True (b) False

Answer key

  1. True
  2. the power LED
  3. a toy robot
  4. runs the program
  5. the USB port
  6. a plain wall switch
  7. laptop
  8. Yes
  9. brings power and code
  10. restarts the program
  11. the reset button
  12. a washing machine
  13. Yes
  14. flash memory
  15. False
  16. True
  17. Yes
  18. laptop
  19. True
  20. False
  21. False
  22. a computer on one chip
  23. True
  24. No
  25. Yes
  26. the main chip
  27. a candle
  28. uploaded over USB
  29. the pins
  30. laptop
  31. microcontroller
  32. shows the board is on
  33. microcontroller
  34. a spinning top
  35. a microwave oven
  36. a wind-up toy
  37. No
  38. No
  39. Yes
  40. False

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