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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 532 · 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.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
  5. 5.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a smart watch (d) a microwave oven
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  8. 8.🤖 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
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the voltage regulator (d) the pins
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  11. 11.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the voltage regulator (c) the pins (d) the USB port
  13. 13.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a wind-up toy (d) a washing machine
  14. 14.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  17. 17.True or false: a candle has no microcontroller inside. (a) True (b) False
  18. 18.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  19. 19.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a toy robot (d) a smart watch
  20. 20.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a laptop uses very little power. (a) True (b) False
  22. 22.True or false: a laptop has a built-in keyboard. (a) False (b) True
  23. 23.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  24. 24.True or false: a microcontroller runs one small program. (a) False (b) True
  25. 25.True or false: a laptop runs one small program. (a) True (b) False
  26. 26.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a microcontroller needs much more power. (a) False (b) True
  30. 30.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  31. 31.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a hand pump (c) a candle (d) a bicycle bell
  32. 32.True or false: a laptop has no screen of its own. (a) True (b) False
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a digital thermometer (d) a bicycle bell
  34. 34.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  36. 36.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  37. 37.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  38. 38.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a laptop runs many apps at once. (a) False (b) True

Answer key

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

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