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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 399 · 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 laptop runs one small program. (a) True (b) False
  2. 2.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
  3. 3.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a plain wall switch (d) a TV remote
  4. 4.True or false: a laptop uses very little power. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.🤖 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
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  9. 9.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  11. 11.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the voltage regulator (d) the USB port
  13. 13.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a candle has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  16. 16.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  19. 19.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the main chip (d) the voltage regulator
  23. 23.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a wind-up toy (d) a digital thermometer
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
  26. 26.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it stops forever (d) it deletes itself
  30. 30.True or false: a microcontroller runs one small program. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the reset button (d) the power LED
  32. 32.True or false: a microcontroller uses very little power. (a) True (b) False
  33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a spinning top (d) a smart watch
  36. 36.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a digital alarm clock (d) a TV remote
  37. 37.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  39. 39.True or false: a microcontroller needs much more power. (a) False (b) True
  40. 40.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False

Answer key

  1. False
  2. shows the board is on
  3. a plain wall switch
  4. False
  5. microcontroller
  6. flash memory
  7. No
  8. restarts the program
  9. False
  10. laptop
  11. Yes
  12. the voltage regulator
  13. No
  14. True
  15. True
  16. False
  17. microcontroller
  18. microcontroller
  19. connect sensors and LEDs
  20. No
  21. runs the program
  22. the main chip
  23. a wind-up toy
  24. the power LED
  25. uploaded over USB
  26. False
  27. No
  28. True
  29. it starts again
  30. True
  31. the USB port
  32. True
  33. Yes
  34. False
  35. a smart watch
  36. a spinning top
  37. True
  38. laptop
  39. False
  40. False

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