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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 354 · 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 TV remote usually has a microcontroller inside. (a) False (b) True
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  4. 4.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a digital alarm clock (d) a candle
  5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the USB port
  6. 6.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  7. 7.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  8. 8.True or false: a microcontroller needs much more power. (a) True (b) False
  9. 9.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a toy robot (d) a hand pump
  10. 10.True or false: a microcontroller uses very little power. (a) True (b) False
  11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  12. 12.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the power LED (d) the main chip
  15. 15.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  17. 17.True or false: a laptop runs one small program. (a) True (b) False
  18. 18.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  19. 19.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a digital alarm clock (d) a plain wall switch
  22. 22.Which of these has no microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a microwave oven (d) a washing machine
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the pins (d) the USB port
  24. 24.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a spinning top
  25. 25.True or false: a laptop uses very little power. (a) True (b) False
  26. 26.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  27. 27.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  28. 28.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) it deletes itself (d) the board breaks
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the USB port (d) the reset button
  32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a plain wall switch (d) a microwave oven
  33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a wind-up toy (d) a toy robot
  39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
  40. 40.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory

Answer key

  1. True
  2. No
  3. connect sensors and LEDs
  4. a digital alarm clock
  5. the voltage regulator
  6. False
  7. True
  8. False
  9. a hand pump
  10. True
  11. microcontroller
  12. False
  13. microcontroller
  14. the USB port
  15. USB or a 9 V battery
  16. laptop
  17. False
  18. True
  19. False
  20. microcontroller
  21. a plain wall switch
  22. a bicycle bell
  23. the main chip
  24. a TV remote
  25. False
  26. keeps the voltage steady
  27. No
  28. shows the board is on
  29. it starts again
  30. laptop
  31. the reset button
  32. a microwave oven
  33. Yes
  34. Yes
  35. restarts the program
  36. Yes
  37. False
  38. a toy robot
  39. True
  40. flash memory

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