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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 315 · 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.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a microwave oven (d) a hand pump
  2. 2.True or false: a laptop uses very little power. (a) False (b) True
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  4. 4.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  8. 8.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  11. 11.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a candle (d) a spinning top
  12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
  15. 15.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
  17. 17.True or false: a laptop has no screen of its own. (a) False (b) True
  18. 18.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  19. 19.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a candle (d) a TV remote
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  21. 21.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a TV remote (d) a toy robot
  22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  23. 23.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a digital thermometer (d) a bicycle bell
  24. 24.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  25. 25.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a TV remote (d) a candle
  27. 27.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop runs one small program. (a) True (b) False
  29. 29.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a digital thermometer (d) a washing machine
  33. 33.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a digital alarm clock (d) a digital thermometer
  34. 34.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which job is done by the main chip? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins

Answer key

  1. a hand pump
  2. False
  3. uploaded over USB
  4. No
  5. the main chip
  6. laptop
  7. it starts again
  8. Yes
  9. Yes
  10. False
  11. a toy robot
  12. No
  13. True
  14. the reset button
  15. flash memory
  16. the USB port
  17. False
  18. connect sensors and LEDs
  19. a candle
  20. laptop
  21. a wind-up toy
  22. the power LED
  23. a digital thermometer
  24. True
  25. False
  26. a TV remote
  27. True
  28. False
  29. a computer on one chip
  30. No
  31. No
  32. a bicycle bell
  33. a plain wall switch
  34. False
  35. Yes
  36. Yes
  37. runs the program
  38. the pins
  39. True
  40. the voltage regulator

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