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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 81 · 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 laptop runs one small program. (a) True (b) False
  2. 2.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a toy robot (d) a wind-up toy
  3. 3.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  4. 4.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  5. 5.True or false: a microcontroller runs one small program. (a) False (b) True
  6. 6.True or false: a laptop uses very little power. (a) False (b) True
  7. 7.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  9. 9.🧭 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
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the main chip (d) the pins
  11. 11.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  13. 13.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a spinning top
  14. 14.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the pins (d) the voltage regulator
  16. 16.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a washing machine (d) a candle
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  22. 22.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  23. 23.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a plain wall switch (d) a washing machine
  25. 25.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a digital thermometer (d) a bicycle bell
  27. 27.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  28. 28.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  29. 29.True or false: a microcontroller uses very little power. (a) True (b) False
  30. 30.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a bicycle bell (d) a hand pump
  32. 32.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  34. 34.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a hand pump (d) a plain wall switch
  37. 37.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a digital alarm clock (d) a washing machine
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the voltage regulator (c) the power LED (d) the pins
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  40. 40.True or false: a microwave oven has no microcontroller inside. (a) False (b) True

Answer key

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

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