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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 140 · 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 part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the power LED (d) the voltage regulator
  2. 2.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a microwave oven (d) a candle
  4. 4.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  5. 5.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  6. 6.True or false: a laptop uses very little power. (a) True (b) False
  7. 7.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the power LED (d) the pins
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  13. 13.True or false: a microcontroller needs much more power. (a) True (b) False
  14. 14.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a TV remote (d) a spinning top
  15. 15.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  16. 16.True or false: a microcontroller runs many apps at once. (a) False (b) True
  17. 17.True or false: a laptop has no screen of its own. (a) False (b) True
  18. 18.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  19. 19.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  20. 20.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  21. 21.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
  24. 24.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  25. 25.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a smart watch (d) a TV remote
  26. 26.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a digital thermometer (d) a spinning top
  27. 27.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a candle (d) a hand pump
  28. 28.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) restarts the program
  29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a smart watch (d) a candle
  30. 30.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a washing machine (d) a bicycle bell
  31. 31.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a bicycle bell (d) a hand pump
  32. 32.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a plain wall switch (d) a toy robot
  33. 33.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  34. 34.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the main chip
  36. 36.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller runs one small program. (a) False (b) True
  38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a microwave oven (d) a digital thermometer
  40. 40.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop

Answer key

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

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