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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 332 · 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) True (b) False
  2. 2.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
  7. 7.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a hand pump (d) a spinning top
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  9. 9.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) brings power and code
  10. 10.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  11. 11.True or false: a laptop runs one small program. (a) False (b) True
  12. 12.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  14. 14.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) restarts the program (d) keeps the voltage steady
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  16. 16.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  19. 19.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a smart watch (d) a digital alarm clock
  20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.True or false: a microcontroller needs much more power. (a) False (b) True
  23. 23.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  24. 24.Which job is done by the pins? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the pins (d) the USB port
  26. 26.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  27. 27.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a wind-up toy (d) a washing machine
  29. 29.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a candle (d) a hand pump
  30. 30.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a laptop has a built-in keyboard. (a) True (b) False
  32. 32.🤖 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
  33. 33.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  34. 34.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a candle (d) a wind-up toy
  35. 35.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  36. 36.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a washing machine (d) a microwave oven
  37. 37.True or false: a laptop has no screen of its own. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a hand pump (d) a spinning top
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  40. 40.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor

Answer key

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

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