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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 260 · 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 smart watch usually has a microcontroller inside. (a) False (b) True
  2. 2.True or false: a laptop has no screen of its own. (a) False (b) True
  3. 3.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  5. 5.True or false: a laptop uses very little power. (a) True (b) False
  6. 6.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  7. 7.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a microcontroller needs much more power. (a) True (b) False
  12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  14. 14.Which of these usually has a microcontroller inside? (a) a washing machine (b) a candle (c) a plain wall switch (d) a spinning top
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  18. 18.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  21. 21.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  22. 22.True or false: a microcontroller runs one small program. (a) False (b) True
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) restarts the program
  25. 25.🤖 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
  26. 26.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a wind-up toy (d) a spinning top
  27. 27.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  28. 28.Which job is done by the pins? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  30. 30.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) runs the program (d) brings power and code
  31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a digital thermometer
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a TV remote (d) a wind-up toy
  33. 33.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  34. 34.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a toy robot (d) a wind-up toy
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
  38. 38.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a bicycle bell (d) a washing machine
  40. 40.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a smart watch (d) a plain wall switch

Answer key

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

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