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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 535 · 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 has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a candle (d) a microwave oven
  2. 2.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) runs the program (d) keeps the voltage steady
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  5. 5.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a hand pump (d) a microwave oven
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  7. 7.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the voltage regulator (d) the power LED
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the reset button (d) the main chip
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  12. 12.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  14. 14.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  15. 15.True or false: a laptop runs many apps at once. (a) False (b) True
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  17. 17.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  18. 18.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a laptop runs one small program. (a) True (b) False
  20. 20.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  21. 21.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  23. 23.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a candle has no microcontroller inside. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a wind-up toy (d) a digital alarm clock
  26. 26.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a smart watch (d) a hand pump
  28. 28.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  30. 30.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a spinning top (d) a washing machine
  32. 32.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the main chip (d) the reset button
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  38. 38.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a plain wall switch (d) a spinning top
  40. 40.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True

Answer key

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

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