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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 356 · 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.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  3. 3.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  4. 4.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the main chip (d) the power LED
  6. 6.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a digital alarm clock (d) a plain wall switch
  7. 7.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  8. 8.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a smart watch (d) a digital thermometer
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a smart watch
  11. 11.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a plain wall switch (d) a bicycle bell
  12. 12.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a spinning top (d) a TV remote
  13. 13.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  14. 14.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  18. 18.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  19. 19.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  21. 21.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a bicycle bell (d) a digital thermometer
  22. 22.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the reset button (d) the voltage regulator
  25. 25.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  26. 26.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  27. 27.True or false: a laptop runs one small program. (a) True (b) False
  28. 28.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a hand pump (d) a washing machine
  29. 29.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a hand pump (d) a bicycle bell
  30. 30.True or false: a laptop uses very little power. (a) True (b) False
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  32. 32.True or false: a laptop runs many apps at once. (a) True (b) False
  33. 33.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) runs the program (d) keeps the voltage steady
  35. 35.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a plain wall switch (d) a wind-up toy
  36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  38. 38.True or false: a microcontroller uses very little power. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  40. 40.True or false: a smart watch has no microcontroller inside. (a) False (b) True

Answer key

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

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