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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 487 · 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 spinning top (c) a candle (d) a smart watch
  2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 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
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  8. 8.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a candle (d) a spinning top
  9. 9.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a washing machine (d) a toy robot
  10. 10.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  11. 11.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  13. 13.True or false: a microcontroller needs much more power. (a) False (b) True
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the power LED (d) the pins
  15. 15.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a candle (d) a microwave oven
  17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a washing machine (d) a wind-up toy
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  19. 19.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  20. 20.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  22. 22.True or false: a laptop uses very little power. (a) False (b) True
  23. 23.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  28. 28.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a spinning top (d) a microwave oven
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a laptop runs many apps at once. (a) False (b) True
  32. 32.True or false: a microcontroller uses very little power. (a) False (b) True
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a wind-up toy (d) a digital alarm clock
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  38. 38.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  39. 39.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  40. 40.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a TV remote (d) a smart watch

Answer key

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

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