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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 266 · 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 USB port? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
  2. 2.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  4. 4.True or false: a microcontroller runs one small program. (a) False (b) True
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a TV remote (d) a wind-up toy
  6. 6.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) restarts the program (d) brings power and code
  7. 7.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the main chip (d) the USB port
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the power LED (d) the voltage regulator
  15. 15.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a smart watch
  16. 16.🤖 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
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a microcontroller needs much more power. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a plain wall switch (d) a candle
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  24. 24.True or false: a laptop runs many apps at once. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a hand pump (d) a washing machine
  26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  27. 27.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  28. 28.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  30. 30.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
  32. 32.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  34. 34.True or false: a laptop has a built-in keyboard. (a) True (b) False
  35. 35.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  36. 36.True or false: a candle has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.True or false: a microcontroller uses very little power. (a) True (b) False
  39. 39.True or false: a laptop uses very little power. (a) False (b) True
  40. 40.True or false: a toy robot has no microcontroller inside. (a) True (b) False

Answer key

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

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