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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 659 · 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 TV remote usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the power LED (d) the main chip
  6. 6.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  7. 7.True or false: a laptop has a built-in keyboard. (a) True (b) False
  8. 8.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  9. 9.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  10. 10.True or false: a microcontroller has no screen of its own. (a) True (b) False
  11. 11.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a laptop runs many apps at once. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the pins (d) the USB port
  15. 15.Which of these has no microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a washing machine (d) a digital alarm clock
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the reset button (d) the power LED
  17. 17.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  18. 18.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the power LED
  19. 19.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  20. 20.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a bicycle bell (d) a toy robot
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  24. 24.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) shows the board is on
  25. 25.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  26. 26.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  27. 27.True or false: a microcontroller uses very little power. (a) True (b) False
  28. 28.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  29. 29.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a smart watch (d) a hand pump
  30. 30.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  31. 31.True or false: a laptop uses very little power. (a) False (b) True
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a bicycle bell (d) a hand pump
  33. 33.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a laptop has no screen of its own. (a) False (b) True
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  38. 38.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a bicycle bell (d) a spinning top
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. Yes
  2. True
  3. laptop
  4. Yes
  5. the power LED
  6. a computer on one chip
  7. True
  8. brings power and code
  9. False
  10. True
  11. laptop
  12. No
  13. True
  14. the reset button
  15. a plain wall switch
  16. the pins
  17. True
  18. the main chip
  19. connect sensors and LEDs
  20. a toy robot
  21. microcontroller
  22. False
  23. Yes
  24. restarts the program
  25. it starts again
  26. False
  27. True
  28. True
  29. a hand pump
  30. laptop
  31. False
  32. a digital alarm clock
  33. No
  34. False
  35. No
  36. microcontroller
  37. flash memory
  38. a microwave oven
  39. No
  40. Yes

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