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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 82 · 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.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a microcontroller runs one small program. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the voltage regulator (d) the reset button
  8. 8.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  9. 9.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  10. 10.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  11. 11.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a washing machine (d) a wind-up toy
  12. 12.True or false: a microcontroller needs much more power. (a) True (b) False
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a hand pump (d) a digital alarm clock
  14. 14.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a hand pump (d) a toy robot
  15. 15.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a digital alarm clock (d) a microwave oven
  16. 16.True or false: a laptop has a built-in keyboard. (a) False (b) True
  17. 17.True or false: a microcontroller has no screen of its own. (a) True (b) False
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the reset button (d) the voltage regulator
  19. 19.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a TV remote (d) a spinning top
  20. 20.True or false: a candle has no microcontroller inside. (a) False (b) True
  21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the main chip (d) the USB port
  23. 23.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  26. 26.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  27. 27.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
  28. 28.True or false: a laptop uses very little power. (a) False (b) True
  29. 29.True or false: a laptop needs much more power. (a) False (b) True
  30. 30.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the pins (d) the main chip
  32. 32.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  33. 33.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a smart watch (d) a digital thermometer
  34. 34.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a microcontroller uses very little power. (a) False (b) True
  36. 36.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  37. 37.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a digital thermometer
  38. 38.🤖 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
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip

Answer key

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

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