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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 358 · 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 laptop runs one small program. (a) False (b) True
  2. 2.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
  3. 3.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  4. 4.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a digital thermometer (d) a spinning top
  5. 5.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a spinning top (d) a wind-up toy
  7. 7.True or false: a microcontroller uses very little power. (a) True (b) False
  8. 8.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) restarts the program
  9. 9.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  10. 10.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) runs the program
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  12. 12.True or false: a laptop runs many apps at once. (a) False (b) True
  13. 13.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a washing machine (d) a TV remote
  14. 14.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a candle (d) a toy robot
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  17. 17.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  19. 19.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a laptop has a built-in keyboard. (a) True (b) False
  21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a hand pump (d) a digital alarm clock
  22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  26. 26.True or false: a laptop uses very little power. (a) True (b) False
  27. 27.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  28. 28.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a plain wall switch (d) a bicycle bell
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a smart watch
  34. 34.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  36. 36.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a microwave oven (d) a digital thermometer
  40. 40.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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