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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 275 · 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.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a candle has no microcontroller inside. (a) False (b) True
  3. 3.🤖 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
  4. 4.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  5. 5.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a smart watch (d) a digital thermometer
  6. 6.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a microwave oven (d) a spinning top
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a plain wall switch (d) a toy robot
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  12. 12.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  13. 13.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  15. 15.True or false: a microcontroller runs many apps at once. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the voltage regulator (d) the USB port
  17. 17.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  23. 23.Which job is done by the voltage regulator? (a) runs the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the main chip (d) the voltage regulator
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
  26. 26.True or false: a laptop has a built-in keyboard. (a) True (b) False
  27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
  28. 28.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a laptop runs one small program. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  31. 31.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a microwave oven (d) a toy robot
  34. 34.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a spinning top (d) a bicycle bell
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  37. 37.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  38. 38.True or false: a microcontroller needs much more power. (a) True (b) False
  39. 39.🤖 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
  40. 40.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a wind-up toy (d) a smart watch

Answer key

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

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