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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 131 · 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 USB port? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  3. 3.Which job is done by the pins? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a wind-up toy
  6. 6.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a bicycle bell
  7. 7.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a digital thermometer (d) a hand pump
  12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  13. 13.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  14. 14.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  16. 16.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the reset button
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  19. 19.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a candle (d) a wind-up toy
  22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  23. 23.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the power LED (d) the pins
  25. 25.True or false: a microcontroller uses very little power. (a) False (b) True
  26. 26.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  27. 27.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the power LED (d) the main chip
  30. 30.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  33. 33.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a microwave oven
  35. 35.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a toy robot (d) a candle
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the USB port (d) the main chip
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a hand pump (d) a TV remote
  39. 39.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  40. 40.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop

Answer key

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

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