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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 753 · 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.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  2. 2.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  3. 3.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  4. 4.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a TV remote (d) a wind-up toy
  6. 6.True or false: a laptop runs one small program. (a) False (b) True
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the reset button (d) the main chip
  9. 9.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a 230 V cable (d) a wall socket directly
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a washing machine (d) a candle
  17. 17.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  19. 19.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  20. 20.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  21. 21.True or false: a microcontroller runs one small program. (a) True (b) False
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  23. 23.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a TV remote (d) a plain wall switch
  24. 24.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  26. 26.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a bicycle bell (d) a candle
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  29. 29.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  33. 33.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  34. 34.True or false: a microcontroller uses very little power. (a) False (b) True
  35. 35.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a digital alarm clock (d) a spinning top
  36. 36.True or false: a microcontroller needs much more power. (a) True (b) False
  37. 37.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the voltage regulator (c) the pins (d) the power LED
  40. 40.True or false: a laptop needs much more power. (a) True (b) False

Answer key

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

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