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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 398 · 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.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  2. 2.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a digital thermometer (d) a candle
  3. 3.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  5. 5.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  9. 9.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the pins (d) the reset button
  12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a washing machine (d) a microwave oven
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  18. 18.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  19. 19.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  20. 20.True or false: a laptop runs many apps at once. (a) True (b) False
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  22. 22.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a digital alarm clock (d) a washing machine
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  24. 24.True or false: a microcontroller runs many apps at once. (a) True (b) False
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  27. 27.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  28. 28.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  30. 30.True or false: a laptop uses very little power. (a) True (b) False
  31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  32. 32.Which of these has no microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a washing machine (d) a toy robot
  33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a smart watch (d) a bicycle bell
  34. 34.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  37. 37.True or false: a microcontroller needs much more power. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a spinning top (b) a microwave oven (c) a smart watch (d) a TV remote
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a TV remote
  40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a spinning top (d) a hand pump

Answer key

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

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