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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 519 · 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 of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a plain wall switch (d) a candle
  2. 2.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a wind-up toy (d) a digital alarm clock
  3. 3.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) runs the program
  7. 7.True or false: a microcontroller needs much more power. (a) True (b) False
  8. 8.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  9. 9.True or false: a laptop runs one small program. (a) False (b) True
  10. 10.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a candle (d) a toy robot
  11. 11.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  12. 12.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the reset button (d) the main chip
  14. 14.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  16. 16.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  18. 18.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  19. 19.True or false: a microcontroller uses very little power. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  21. 21.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  23. 23.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  26. 26.True or false: a microcontroller has no screen of its own. (a) True (b) False
  27. 27.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a washing machine (d) a wind-up toy
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a digital alarm clock (d) a hand pump
  36. 36.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a laptop uses very little power. (a) True (b) False
  40. 40.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a toy robot (d) a microwave oven

Answer key

  1. a microwave oven
  2. a wind-up toy
  3. runs the program
  4. microcontroller
  5. Yes
  6. brings power and code
  7. False
  8. True
  9. False
  10. a toy robot
  11. a computer on one chip
  12. False
  13. the main chip
  14. No
  15. laptop
  16. Yes
  17. laptop
  18. flash memory
  19. True
  20. laptop
  21. connect sensors and LEDs
  22. the reset button
  23. False
  24. Yes
  25. uploaded over USB
  26. True
  27. the voltage regulator
  28. microcontroller
  29. Yes
  30. False
  31. a washing machine
  32. True
  33. Yes
  34. True
  35. a digital alarm clock
  36. the pins
  37. microcontroller
  38. Yes
  39. False
  40. a candle

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