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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 416 · 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.

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

Answer key

  1. False
  2. a microwave oven
  3. False
  4. keeps the voltage steady
  5. it starts again
  6. False
  7. No
  8. a digital thermometer
  9. True
  10. the USB port
  11. restarts the program
  12. Yes
  13. True
  14. a hand pump
  15. False
  16. a candle
  17. a wind-up toy
  18. False
  19. flash memory
  20. a TV remote
  21. Yes
  22. False
  23. True
  24. the main chip
  25. USB or a 9 V battery
  26. brings power and code
  27. No
  28. microcontroller
  29. the pins
  30. False
  31. uploaded over USB
  32. Yes
  33. laptop
  34. False
  35. a washing machine
  36. laptop
  37. microcontroller
  38. True
  39. runs the program
  40. No

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