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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 348 · 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.True or false: a microcontroller uses very little power. (a) True (b) False
  2. 2.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a toy robot (d) a spinning top
  3. 3.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  5. 5.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a digital alarm clock (d) a hand pump
  6. 6.True or false: a microcontroller runs one small program. (a) False (b) True
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a plain wall switch (d) a toy robot
  8. 8.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a laptop has no screen of its own. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the main chip (d) the reset button
  17. 17.🤖 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
  18. 18.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  19. 19.True or false: a microcontroller has no screen of its own. (a) True (b) False
  20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital thermometer (d) a wind-up toy
  21. 21.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a spinning top (d) a TV remote
  22. 22.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a spinning top (d) a bicycle bell
  23. 23.True or false: a laptop uses very little power. (a) False (b) True
  24. 24.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  25. 25.True or false: a candle has no microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the main chip (d) the USB port
  28. 28.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a candle (d) a plain wall switch
  29. 29.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  30. 30.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  31. 31.True or false: a laptop has a built-in keyboard. (a) False (b) True
  32. 32.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  34. 34.🤖 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
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) brings power and code
  37. 37.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  40. 40.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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