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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 211 · 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.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  3. 3.🤖 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
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the USB port (d) the voltage regulator
  5. 5.🤖 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
  6. 6.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a plain wall switch (d) a digital alarm clock
  7. 7.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  8. 8.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a plain wall switch (d) a candle
  9. 9.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a spinning top (d) a smart watch
  11. 11.True or false: a laptop uses very little power. (a) False (b) True
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.True or false: a microcontroller uses very little power. (a) False (b) True
  16. 16.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  17. 17.True or false: a laptop needs much more power. (a) False (b) True
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  20. 20.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) shows the board is on
  21. 21.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a bicycle bell (d) a toy robot
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a plain wall switch (d) a wind-up toy
  24. 24.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the voltage regulator (d) the pins
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  27. 27.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a microwave oven (d) a digital thermometer
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  32. 32.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a wind-up toy (d) a spinning top
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  34. 34.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  35. 35.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a candle (d) a spinning top
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the main chip (d) the power LED
  39. 39.True or false: a laptop has no screen of its own. (a) False (b) True
  40. 40.True or false: a laptop has a built-in keyboard. (a) True (b) False

Answer key

  1. Yes
  2. restarts the program
  3. uploaded over USB
  4. the reset button
  5. flash memory
  6. a plain wall switch
  7. True
  8. a digital thermometer
  9. False
  10. a spinning top
  11. False
  12. Yes
  13. laptop
  14. microcontroller
  15. True
  16. a computer on one chip
  17. True
  18. USB or a 9 V battery
  19. microcontroller
  20. shows the board is on
  21. Yes
  22. a bicycle bell
  23. a washing machine
  24. No
  25. the power LED
  26. laptop
  27. brings power and code
  28. microcontroller
  29. No
  30. a candle
  31. False
  32. a smart watch
  33. the USB port
  34. it starts again
  35. a toy robot
  36. Yes
  37. No
  38. the main chip
  39. False
  40. True

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