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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 386 · 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 usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a digital thermometer (d) a wind-up toy
  2. 2.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  3. 3.True or false: a microcontroller needs much more power. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  6. 6.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  7. 7.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  10. 10.True or false: a microcontroller has no screen of its own. (a) True (b) False
  11. 11.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a washing machine (d) a candle
  12. 12.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the power LED (d) the reset button
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  16. 16.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a plain wall switch (d) a toy robot
  21. 21.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  22. 22.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
  24. 24.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  25. 25.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the pins
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the pins (d) the reset button
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  30. 30.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a microwave oven (c) a wind-up toy (d) a hand pump
  32. 32.Which job is done by the reset button? (a) runs the program (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  33. 33.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller runs one small program. (a) True (b) False
  35. 35.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  37. 37.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a smart watch (d) a candle
  38. 38.True or false: a laptop has no screen of its own. (a) False (b) True
  39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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