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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 314 · 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 spinning top (b) a candle (c) a wind-up toy (d) a digital thermometer
  2. 2.True or false: a laptop needs much more power. (a) False (b) True
  3. 3.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  6. 6.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a wind-up toy (d) a smart watch
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
  9. 9.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a microwave oven (d) a digital thermometer
  10. 10.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a bicycle bell (d) a washing machine
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  12. 12.True or false: a microcontroller uses very little power. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.True or false: a laptop has a built-in keyboard. (a) False (b) True
  15. 15.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  18. 18.True or false: a microcontroller runs many apps at once. (a) False (b) True
  19. 19.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a microcontroller needs much more power. (a) False (b) True
  25. 25.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  26. 26.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a hand pump (d) a TV remote
  27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a laptop uses very little power. (a) False (b) True
  29. 29.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  30. 30.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a TV remote (d) a plain wall switch
  31. 31.Which job is done by the pins? (a) runs the program (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
  33. 33.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  34. 34.True or false: a laptop runs many apps at once. (a) True (b) False
  35. 35.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  36. 36.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  37. 37.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a washing machine (d) a digital alarm clock
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a plain wall switch (d) a hand pump
  39. 39.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a hand pump (d) a digital alarm clock
  40. 40.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller

Answer key

  1. a digital thermometer
  2. True
  3. False
  4. microcontroller
  5. True
  6. a smart watch
  7. uploaded over USB
  8. the voltage regulator
  9. a candle
  10. a washing machine
  11. the pins
  12. True
  13. microcontroller
  14. True
  15. No
  16. flash memory
  17. laptop
  18. False
  19. keeps the voltage steady
  20. laptop
  21. False
  22. Yes
  23. No
  24. False
  25. the power LED
  26. a TV remote
  27. No
  28. False
  29. False
  30. a plain wall switch
  31. connect sensors and LEDs
  32. True
  33. False
  34. True
  35. False
  36. runs the program
  37. a bicycle bell
  38. a microwave oven
  39. a digital alarm clock
  40. laptop

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