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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 274 · 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 pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  3. 3.True or false: a laptop needs much more power. (a) False (b) True
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  5. 5.Which job is done by the power LED? (a) restarts the program (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  6. 6.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a digital alarm clock (d) a bicycle bell
  7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  8. 8.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a smart watch (d) a TV remote
  10. 10.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a toy robot (d) a wind-up toy
  11. 11.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a toy robot (d) a digital alarm clock
  12. 12.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a TV remote (d) a washing machine
  13. 13.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  14. 14.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  15. 15.Which job is done by the reset button? (a) runs the program (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  16. 16.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
  19. 19.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  23. 23.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  25. 25.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) shows the board is on (d) restarts the program
  26. 26.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a spinning top (d) a candle
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the pins (d) the main chip
  28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a hand pump (d) a bicycle bell
  29. 29.True or false: a microcontroller runs one small program. (a) True (b) False
  30. 30.True or false: a candle has no microcontroller inside. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a spinning top (d) a candle
  32. 32.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a candle (d) a bicycle bell
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  36. 36.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  37. 37.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  38. 38.True or false: a laptop runs one small program. (a) True (b) False
  39. 39.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 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

Answer key

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

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