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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 472 · 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 smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the pins
  3. 3.True or false: a laptop needs much more power. (a) False (b) True
  4. 4.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  7. 7.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  8. 8.🤖 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
  9. 9.True or false: a microcontroller runs one small program. (a) True (b) False
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  12. 12.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  13. 13.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the main chip (d) the reset button
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a bicycle bell (d) a hand pump
  17. 17.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  20. 20.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) restarts the program
  21. 21.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a hand pump (d) a toy robot
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the USB port (d) the main chip
  24. 24.True or false: a laptop runs one small program. (a) False (b) True
  25. 25.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the USB port (d) the power LED
  26. 26.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  27. 27.True or false: a microcontroller needs much more power. (a) True (b) False
  28. 28.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  29. 29.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) restarts the program
  30. 30.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  32. 32.True or false: a microcontroller runs many apps at once. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  34. 34.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a TV remote (d) a digital thermometer
  35. 35.True or false: a laptop has no screen of its own. (a) False (b) True
  36. 36.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  39. 39.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a smart watch (d) a microwave oven
  40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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