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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 227 · 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.🤖 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
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  3. 3.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a microwave oven (d) a bicycle bell
  9. 9.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the power LED
  10. 10.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the voltage regulator (d) the main chip
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a toy robot (d) a spinning top
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) runs the program
  16. 16.True or false: a laptop has no screen of its own. (a) False (b) True
  17. 17.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital alarm clock (d) a plain wall switch
  18. 18.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a microcontroller runs one small program. (a) False (b) True
  23. 23.True or false: a microcontroller needs much more power. (a) False (b) True
  24. 24.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a toy robot (d) a wind-up toy
  26. 26.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  28. 28.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a TV remote (d) a washing machine
  32. 32.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  34. 34.True or false: a laptop runs many apps at once. (a) False (b) True
  35. 35.True or false: a microcontroller uses very little power. (a) False (b) True
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  37. 37.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a candle (d) a plain wall switch
  38. 38.True or false: a laptop needs much more power. (a) True (b) False
  39. 39.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a digital thermometer (d) a wind-up toy
  40. 40.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a toy robot (d) a digital thermometer

Answer key

  1. it starts again
  2. flash memory
  3. False
  4. Yes
  5. Yes
  6. Yes
  7. Yes
  8. a microwave oven
  9. the main chip
  10. a computer on one chip
  11. the reset button
  12. a toy robot
  13. microcontroller
  14. laptop
  15. brings power and code
  16. False
  17. a plain wall switch
  18. False
  19. USB or a 9 V battery
  20. laptop
  21. Yes
  22. True
  23. False
  24. No
  25. a wind-up toy
  26. True
  27. laptop
  28. connect sensors and LEDs
  29. No
  30. False
  31. a bicycle bell
  32. No
  33. the voltage regulator
  34. True
  35. True
  36. microcontroller
  37. a washing machine
  38. True
  39. a digital thermometer
  40. a spinning top

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