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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 123 · 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.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  2. 2.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  3. 3.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  5. 5.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  6. 6.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a hand pump (d) a microwave oven
  7. 7.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a plain wall switch (d) a bicycle bell
  8. 8.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  11. 11.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  12. 12.True or false: a microcontroller has no screen of its own. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a wind-up toy (d) a candle
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a washing machine (d) a spinning top
  15. 15.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  16. 16.True or false: a laptop runs many apps at once. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the USB port (d) the power LED
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  19. 19.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the reset button (d) the main chip
  20. 20.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  21. 21.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the voltage regulator (d) the main chip
  22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a hand pump (d) a smart watch
  23. 23.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  27. 27.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a wind-up toy (d) a TV remote
  28. 28.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the main chip (d) the pins
  30. 30.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.True or false: a microcontroller runs many apps at once. (a) True (b) False
  33. 33.True or false: a laptop runs one small program. (a) False (b) True
  34. 34.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a candle (d) a wind-up toy
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  39. 39.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. runs the program
  2. uploaded over USB
  3. True
  4. a computer on one chip
  5. True
  6. a microwave oven
  7. a digital thermometer
  8. flash memory
  9. Yes
  10. it starts again
  11. True
  12. True
  13. a toy robot
  14. a spinning top
  15. True
  16. True
  17. the power LED
  18. laptop
  19. the voltage regulator
  20. False
  21. the main chip
  22. a hand pump
  23. Yes
  24. False
  25. laptop
  26. microcontroller
  27. a wind-up toy
  28. False
  29. the pins
  30. keeps the voltage steady
  31. laptop
  32. False
  33. False
  34. False
  35. a smart watch
  36. microcontroller
  37. Yes
  38. True
  39. restarts the program
  40. Yes

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