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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 127 · 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) restarts the program (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  2. 2.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the power LED (d) the main chip
  4. 4.True or false: a laptop runs many apps at once. (a) False (b) True
  5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  7. 7.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a spinning top (d) a TV remote
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the power LED (d) the pins
  10. 10.Which of these usually has a microcontroller inside? (a) a toy robot (b) a hand pump (c) a spinning top (d) a wind-up toy
  11. 11.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a microwave oven (d) a washing machine
  13. 13.True or false: a microcontroller uses very little power. (a) False (b) True
  14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the voltage regulator (c) the main chip (d) the pins
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  19. 19.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a candle (d) a smart watch
  20. 20.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  21. 21.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  22. 22.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  23. 23.True or false: a microcontroller runs one small program. (a) True (b) False
  24. 24.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a candle has no microcontroller inside. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
  28. 28.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a wind-up toy (d) a candle
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a wind-up toy (d) a digital thermometer
  34. 34.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  35. 35.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  36. 36.True or false: a microcontroller has no screen of its own. (a) False (b) True
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) restarts the program (d) brings power and code

Answer key

  1. shows the board is on
  2. No
  3. the power LED
  4. True
  5. No
  6. a computer on one chip
  7. a spinning top
  8. laptop
  9. the voltage regulator
  10. a toy robot
  11. False
  12. a bicycle bell
  13. True
  14. Yes
  15. the pins
  16. the reset button
  17. flash memory
  18. the USB port
  19. a candle
  20. False
  21. False
  22. microcontroller
  23. True
  24. No
  25. Yes
  26. True
  27. the main chip
  28. keeps the voltage steady
  29. microcontroller
  30. laptop
  31. False
  32. a TV remote
  33. a digital thermometer
  34. brings power and code
  35. laptop
  36. True
  37. uploaded over USB
  38. microcontroller
  39. No
  40. restarts the program

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