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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 576 · 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 has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a wind-up toy (d) a smart watch
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  3. 3.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  4. 4.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a hand pump (d) a candle
  5. 5.True or false: a laptop has a built-in keyboard. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  7. 7.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a candle (d) a bicycle bell
  8. 8.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  11. 11.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  14. 14.Which job is done by the USB port? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  15. 15.True or false: a microcontroller runs many apps at once. (a) True (b) False
  16. 16.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
  18. 18.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  21. 21.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a microcontroller runs one small program. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a digital thermometer (d) a hand pump
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  30. 30.True or false: a laptop runs many apps at once. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a washing machine (d) a smart watch
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
  35. 35.True or false: a laptop uses very little power. (a) True (b) False
  36. 36.True or false: a microcontroller has no screen of its own. (a) True (b) False
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  39. 39.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  40. 40.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a smart watch (d) a wind-up toy

Answer key

  1. a wind-up toy
  2. it starts again
  3. No
  4. a digital thermometer
  5. True
  6. laptop
  7. a microwave oven
  8. a computer on one chip
  9. the USB port
  10. USB or a 9 V battery
  11. False
  12. microcontroller
  13. Yes
  14. brings power and code
  15. False
  16. True
  17. the voltage regulator
  18. Yes
  19. flash memory
  20. uploaded over USB
  21. No
  22. False
  23. Yes
  24. True
  25. microcontroller
  26. False
  27. a hand pump
  28. laptop
  29. restarts the program
  30. True
  31. a spinning top
  32. True
  33. Yes
  34. False
  35. False
  36. True
  37. Yes
  38. False
  39. shows the board is on
  40. a smart watch

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