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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 465 · 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.

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

Answer key

  1. False
  2. laptop
  3. the USB port
  4. True
  5. the pins
  6. a digital alarm clock
  7. it starts again
  8. a bicycle bell
  9. keeps the voltage steady
  10. Yes
  11. brings power and code
  12. No
  13. Yes
  14. laptop
  15. Yes
  16. a candle
  17. True
  18. the reset button
  19. Yes
  20. microcontroller
  21. a computer on one chip
  22. False
  23. runs the program
  24. False
  25. No
  26. False
  27. Yes
  28. the main chip
  29. a digital thermometer
  30. a hand pump
  31. True
  32. False
  33. False
  34. False
  35. flash memory
  36. the voltage regulator
  37. a toy robot
  38. True
  39. Yes
  40. uploaded over USB

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